Anti-falling structure for braking of hydraulic lifting platform

Abstract

The utility model relates to a hydraulic lifting platform braking anti-falling structure which comprises a lifting platform, a fixing seat, a braking seat and a square guide rod, the fixing seat is fixed on the side portion of the lifting platform, the braking seat is fixed on the side surface of the fixing seat, a vertically-through guide groove is formed in the braking seat, and the square guide rod is vertically arranged and penetrates through the guide groove in a sliding mode. In the lifting process of the lifting table, the braking seat can synchronously slide along the square guide rod, a braking mechanism is arranged in the braking seat, and the braking seat is locked on the square guide rod through the braking mechanism in emergency, so that braking is achieved. According to the anti-falling structure, the brake seat can be locked on the square guide rod through operation of the brake mechanism, the emergency brake effect is achieved, two sets of brake systems are provided for the hydraulic lifting platform in combination with the original brake effect of a hydraulic system, and when the hydraulic system breaks down, the anti-falling structure can assist in braking, so that the safety of the hydraulic lifting platform is improved. And the lifting platform is effectively prevented from falling, and the safety during use is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic lifting platforms, in particular to a hydraulic lifting platform braking anti-falling structure. Background Art

[0002] A hydraulic lifting platform is a device that achieves vertical lifting function through a hydraulic system and is usually used in the fields of industry, commerce and logistics. It consists of key components such as hydraulic cylinders, hydraulic pumps, and control valves, which can smoothly lift the work surface or goods to the required height, improving work efficiency and convenience. The hydraulic control valve is a key component on the hydraulic lifting platform. By controlling the pressure and flow of the hydraulic system, it ensures that the lifting platform can stop stably when it is raised or lowered to the specified position and prevents uncontrolled falls.

[0003] During the long-term load-bearing operation of the lifting platform, if there is a lack of regular maintenance and inspection, key components of the hydraulic system, such as hydraulic pumps, hydraulic cylinders, control valves, etc., may leak and fail, causing the platform to lose support or control and fall. Traditional hydraulic lifting platforms lack a second set of braking anti-fall structures, making it difficult to provide additional anti-fall protection in emergencies. Utility Model Content

[0004] The purpose of the utility model is to provide a hydraulic lifting platform braking anti-falling structure, which effectively solves the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions.

[0006] A fall prevention structure for braking a hydraulic lifting platform comprises a lifting platform, a fixed seat, a brake seat and a square guide rod. The fixed seat is fixed to the side of the lifting platform, and the brake seat is fixed to the side surface of the fixed seat. The brake seat is provided with a vertically penetrating guide groove. The square guide rod is arranged vertically and slides through the guide groove. During the lifting process of the lifting platform, the brake seat can slide synchronously along the square guide rod. A brake mechanism is provided in the brake seat. In an emergency, the brake mechanism causes the brake seat to lock on the square guide rod to achieve braking.

[0007] It can be seen that through the operation of the brake mechanism, the brake seat can be locked on the square guide rod, which has the effect of emergency braking. Combined with the braking effect originally provided by the hydraulic system, two braking systems are provided for the hydraulic lifting platform. If the hydraulic system fails, the anti-fall structure can assist in braking, effectively prevent the lifting platform from falling, and improve safety during use. The brake seat can slide synchronously along the square guide rod during the lifting process of the lifting platform. The cooperation between the brake seat and the square guide rod not only provides a limiting guiding effect and a supporting effect on the lifting of the lifting platform, but also serves as the main braking component during emergency braking, killing two birds with one stone.

[0008] Furthermore, the brake mechanism includes an airbag, a metal brake plate, a pressure-conducting device and a piping system. Side grooves are symmetrically arranged on both sides of the guide groove in the brake seat. The two side grooves are connected to the guide groove. Airbags are fixed on the inner walls of the two side grooves facing the guide groove. Metal brake plates are fixed on the surfaces of the two airbags close to each other. The outer surface of the metal brake plate slides in contact with the inner wall of the side groove. The two airbags can expand and extend toward the square guide rod when inflated. The pressure-conducting device is arranged in the fixed seat, and the piping system is arranged in the fixed seat and the brake seat, which is used to connect the two airbags with the pressure-conducting device. The pressure-conducting device is used to inflate and deflate the two airbags.

[0009] Furthermore, the pressure-conducting device includes a driving telescopic cylinder and a piston. A vertically extending inner cavity is provided in the fixed seat, and a vertically extending hole cavity is provided in the fixed seat below the inner cavity. The driving telescopic cylinder is vertically fixed in the inner cavity, and the piston is slidably installed in the hole cavity. The telescopic rod of the driving telescopic cylinder extends through the hole cavity and is fixedly connected to the piston.

[0010] Furthermore, the telescopic cylinder is driven by an electric push cylinder.

[0011] Furthermore, the piping system includes a diversion channel arranged in the fixed seat and extending into the brake seat, a pair of mounting channels arranged in the brake seat, and a pair of connecting pipes. One end of the diversion channel is connected to the hole cavity, and two connecting pipes are installed in the mounting channel one by one. One end of the two connecting pipes is connected to the diversion channel, and the other end is connected to the two airbags one by one.

[0012] Furthermore, guide rails are fixed to the inner walls on both sides of the side groove, inner cavities are provided on both sides of the pressure-conducting device, and the pressure-conducting device is slidably mounted on the two guide rails through the inner cavities on both sides.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows.

[0014] 1. The utility model works through the brake mechanism, which can cause the brake seat to lock on the square guide rod, thereby achieving an emergency brake effect. Combined with the original brake effect of the hydraulic system, two brake systems are provided for the hydraulic lifting platform. If the hydraulic system fails, the anti-fall structure can assist in braking, effectively preventing the lifting platform from falling, and improving safety during use.

[0015] 2. The brake seat in the utility model can slide synchronously along the square guide rod during the lifting process of the lifting platform. The cooperation between the brake seat and the square guide rod can not only provide a limiting guiding effect and a supporting effect for the lifting of the lifting platform, but also serve as the main braking component during emergency braking, thus killing two birds with one stone. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is one of the schematic cross-sectional views of the local structure of the utility model;

[0018] Figure 3 This is the second schematic diagram of the partial structural section of the utility model;

[0019] Figure 4 It is a schematic cross-sectional view of the structure of the brake seat in the utility model.

[0020] In the figure: 1. lifting platform; 2. fixed seat; 3. brake seat; 31. guide groove; 4. square guide rod; 5. brake mechanism; 501. side groove; 502. guide rail; 51. air bag; 52. metal brake plate; 53. pressure-conducting device; 531. inner cavity; 532. hole cavity; 533. driving telescopic cylinder; 534. piston; 54. pipeline system; 541. diversion channel; 542. installation channel; 543. connecting pipe. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms, "connection" and "installation" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. In addition, "connection" can be a direct connection or an indirect connection through an intermediate medium. Among them, "fixed" means that they are connected to each other and the relative position relationship after connection remains unchanged. The directional terms mentioned in the embodiments of the present utility model, such as "inside", "outside", "top", "bottom", etc., are only reference to the directions of the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present utility model, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present utility model.

[0023] In the embodiments of the present invention, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0024] See also Figure 1-Figure 4 The utility model provides a hydraulic lifting platform braking anti-falling structure, including a lifting platform 1, a fixed seat 2, a brake seat 3 and a square guide rod 4. The lifting platform 1 can be lifted and lowered by a hydraulic system. The fixed seat 2 is fixed to the side of the lifting platform 1, and the brake seat 3 is fixed to the side surface of the fixed seat 2. A vertical guide groove 31 is provided on the brake seat 3. The square guide rod 4 is arranged vertically and slides through the guide groove 31. During the lifting process of the lifting platform 1, the brake seat 3 can slide synchronously along the square guide rod 4. A brake mechanism 5 is provided in the brake seat 3. The brake mechanism 5 causes the brake seat 3 to lock on the square guide rod 4 in an emergency to achieve braking.

[0025] When an emergency situation requires emergency braking, the hydraulic control valve of the hydraulic system itself can control the lifting platform 1 to stop lifting and achieve braking. At the same time, the brake mechanism 5 can work to cause the brake seat 3 to lock on the square guide rod 4, which also has the effect of emergency braking, thereby providing two sets of braking systems for the hydraulic lifting platform. If the hydraulic system fails, the anti-falling structure can assist in braking, effectively preventing the lifting platform 1 from falling, and improving safety during use.

[0026] In addition, the brake seat 3 can slide synchronously along the square guide rod 4 during the lifting process of the lifting platform 1. The cooperation between the brake seat 3 and the square guide rod 4 not only provides a limiting guiding effect and a supporting effect on the lifting of the lifting platform 1, but also serves as the main braking component during emergency braking, killing two birds with one stone.

[0027] Specifically, the brake mechanism 5 includes an airbag 51, a metal brake plate 52, a pressure guide device 53 and a pipeline system 54. Side grooves 501 are symmetrically arranged on both sides of the guide groove 31 in the brake seat 3. The two side grooves 501 are connected to the guide groove 31. Airbags 51 are fixed on the inner side walls of the two side grooves 501 facing the guide groove 31. Metal brake plates 52 are fixed on the surfaces of the two airbags 51 close to each other. The outer surface of the metal brake plate 52 is slidably fitted with the inner wall of the side groove 501. The two airbags 51 can expand and extend toward the square guide rod 4 when inflated. The pressure guide device 53 is arranged on the fixed In the fixed seat 2, the piping system 54 is arranged in the fixed seat 2 and the brake seat 3, and is used to connect the two air bags 51 with the pressure-conducting device 53. The pressure-conducting device 53 is used to inflate and deflate the two air bags 51. In case of emergency, the pressure-conducting device 53 works to inflate the two air bags 51. The two air bags 51 are inflated and expanded, which can push the two metal brake plates 52 to approach the square guide rod 4 until they are tightly fitted with the square guide rod 4. The friction force generated by the fit between the two metal brake plates 52 and the square guide rod 4 can achieve a braking effect, which can help the lifting platform 1 stop descending.

[0028] Specifically, the pressure-conducting device 53 includes a driving telescopic cylinder 533 and a piston 534. A vertically extending inner cavity 531 is provided in the fixed seat 2. A vertically extending hole 532 is provided in the fixed seat 2 below the inner cavity 531. The driving telescopic cylinder 533 is vertically fixed in the inner cavity 531. The piston 534 is slidably installed in the hole 532. The telescopic rod of the driving telescopic cylinder 533 extends through the hole 532 and is fixedly connected to the piston 534. By extending the telescopic rod of the driving telescopic cylinder 533, the piston 534 can be pushed downward in the hole 532, and then the gas in the hole 532 can be pressed into the two air bags 51 through the pipeline system 54 to achieve an inflation effect. By driving the telescopic cylinder 533 to retract, the piston 534 is driven to move upward, and the gas in the air bag 51 is drawn back into the hole 532 through the pipeline system 54, so that the two metal brake plates 52 can be driven to separate from the square guide rod 4 to achieve the cancellation of the brake.

[0029] In addition, the driving telescopic cylinder 533 is controlled by the control system of the hydraulic lifting platform. When the emergency button on the control box or the remote control is pressed, the driving telescopic cylinder 533 can start working immediately to ensure the timeliness of emergency braking.

[0030] The driving telescopic cylinder 533 adopts an electric push cylinder. The electric push cylinder is used as the driving telescopic cylinder 533, so that the driving telescopic cylinder 533 is electrically driven and has a fast response speed. Compared with the traditional hydraulic cylinder, it does not need to be equipped with a huge air distribution system, has a low cost of use, and is conducive to a simple structure.

[0031] Specifically, the piping system 54 includes a guide channel 541 provided in the fixed seat 2 and extending into the brake seat 3, a pair of mounting channels 542 provided in the brake seat 3, and a pair of connecting pipes 543. One end of the guide channel 541 is communicated with the cavity 532, and two connecting pipes 543 are installed in the mounting channel 542 one by one. One end of the two connecting pipes 543 is communicated with the guide channel 541, and the other end is communicated with the two airbags 51 one by one. By utilizing the guide channel 541 and the two connecting pipes 543, the two airbags 51 are respectively connected to the cavity 532, so as to facilitate gas circulation.

[0032] Specifically, guide rails 502 are fixed to the inner walls on both sides of the side groove 501, and inner cavities 531 are provided on both sides of the pressure-conducting device 53. The pressure-conducting device 53 is slidably mounted on the two guide rails 502 through the inner cavities 531 on both sides. The guide rails 502 are used to limit and guide the pressure-conducting device 53, and also provide support for the pressure-conducting device 53, thereby ensuring that the supporting strength between the pressure-conducting device 53 and the brake mechanism 5 is sufficient.

[0033] 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 hydraulic lifting platform braking anti-falling structure, characterized in that: It comprises a lifting platform (1), a fixing seat (2), a brake seat (3) and a square guide rod (4); The fixing seat (2) is fixed on the side of the lifting platform (1), and the brake seat (3) is fixed on the side surface of the fixing seat (2); The brake seat (3) is provided with a vertically penetrating guide groove (31), and the square guide rod (4) is arranged vertically and slides through the guide groove (31); During the lifting process of the lifting platform (1), the brake seat (3) can slide synchronously along the square guide rod (4), and a brake mechanism (5) is provided inside the brake seat (3). In an emergency, the brake mechanism (5) causes the brake seat (3) to lock onto the square guide rod (4) to achieve braking.

2. The anti-falling structure of the hydraulic lifting platform brake according to claim 1 is characterized by: The brake mechanism (5) comprises an air bag (51), a metal brake plate (52), a pressure-conducting device (53) and a pipeline system (54); Side grooves (501) are symmetrically arranged on both sides of the guide groove (31) in the brake seat (3), and the two side grooves (501) are both connected to the guide groove (31); The airbags (51) are fixed on the inner side walls of the two side grooves (501) facing the guide groove (31), and the surfaces of the two airbags (51) close to each other are fixed with metal brake plates (52), and the outer surface of the metal brake plate (52) is slidably fitted with the inner wall of the side groove (501); The two air bags (51) can both expand and extend toward the square guide rod (4) when inflated; The pressure-conducting device (53) is arranged in the fixing seat (2), and the pipeline system (54) is arranged in the fixing seat (2) and the brake seat (3) and is used to connect the two airbags (51) with the pressure-conducting device (53); The pressure-conducting device (53) is used to inflate and deflate the two air bags (51).

3. The anti-falling structure of the hydraulic lifting platform brake according to claim 2 is characterized by: The pressure-conducting device (53) comprises a driving telescopic cylinder (533) and a piston (534); The fixing seat (2) is provided with a vertically extending inner cavity (531), and the fixing seat (2) is provided with a vertically extending hole cavity (532) below the inner cavity (531); The driving telescopic cylinder (533) is vertically fixed in the inner cavity (531), and the piston (534) is slidably mounted in the bore cavity (532); The telescopic rod of the driving telescopic cylinder (533) extends through the cavity (532) and is fixedly connected to the piston (534).

4. The anti-falling structure of the hydraulic lifting platform brake according to claim 3 is characterized by: The driving telescopic cylinder (533) is an electric push cylinder.

5. The anti-falling structure of the hydraulic lifting platform brake according to claim 3 is characterized by: The pipeline system (54) comprises a flow guide channel (541) arranged in the fixing seat (2) and extending into the brake seat (3), a pair of mounting channels (542) arranged in the brake seat (3), and a pair of connecting pipes (543); One end of the diversion channel (541) is in communication with the cavity (532); The two connecting tubes (543) are installed in the installation channel (542) in a one-to-one correspondence, one end of the two connecting tubes (543) is communicated with the flow guide channel (541), and the other end is communicated with the two air bags (51) in a one-to-one correspondence.

6. The anti-falling structure of the hydraulic lifting platform brake according to claim 2 is characterized by: Guide rails (502) are fixed to the inner walls on both sides of the side groove (501), inner cavities (531) are provided on both sides of the pressure-conducting device (53), and the pressure-conducting device (53) is slidably mounted on the two guide rails (502) through the inner cavities (531) on both sides.

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