A height limiting frame for management of basement vehicles

Abstract

The utility model relates to the technical field of height limiting frame for garage vehicle management, and specifically discloses a height limiting frame for garage vehicle management, which comprises support columns, a height limiting cross beam, a cross beam buffer guide rail mechanism, a buffer reset mechanism and an alarm mechanism, the support columns are vertically arranged on the two sides of the ground, the height limiting cross beam is horizontally installed between the two support columns, the cross beam buffer guide rail mechanism enables the height limiting cross beam to slide back and forth within a set range, and the buffer reset mechanism can realize energy absorption and automatic reset functions after impact. The buffer reset mechanism composed of the hydraulic buffer and the disc-shaped reset spring group is arranged to absorb the impact energy of vehicles, reduce the damage to the vehicles and the height limiting frame itself, and enable the height limiting cross beam to slowly reset under the action of the spring after impact without manual intervention, thereby improving the continuity of use and the maintenance efficiency; when the impact force exceeds the set threshold, the shear pin is sheared.

Description

Technical Field

[0001] This utility model relates to the technical field of height restriction frames for parking garage vehicle management, specifically a height restriction frame for parking garage vehicle management. Background Technology

[0002] Height restriction barriers for underground parking garages are core safety facilities at the entrances. Their primary function is to physically restrict the passage of oversized vehicles, preventing structural collisions (such as pipe damage or ceiling abrasion) or traffic accidents caused by vehicles exceeding the garage's clearance. Traditional height restriction barriers generally employ a rigid, fixed structure, consisting of two vertical support columns welded or bolted to a horizontal height restriction beam. The height of the beam is set according to the garage's clearance requirements (typically 2.0–2.2 meters). Despite their simple structure and low cost, significant drawbacks have been revealed in practical applications:

[0003] When an oversized vehicle accidentally collides with a height restriction beam, the impact kinetic energy is directly transferred to the support column foundation and vehicle body through the rigid connection, causing the height restriction beam to bend and deform, the concrete at the base of the support column to crack, and damage to the vehicle's cargo box or roof structure. The rigid connection between the height restriction beam and the support column may break and fall off under overload impact, posing a risk of falling and injuring pedestrians or causing secondary collisions with other vehicles.

[0004] Meanwhile, height restriction beams that deform or shift after an impact require professional personnel to use hydraulic equipment for correction (averaging 2-3 hours per cycle). During this time, the underground parking garage entrance is closed, causing a decrease in traffic efficiency. In addition, a few adjustable height restriction frames require climbing to manually adjust the bolts, which is dangerous and makes it difficult to accurately control the height. Utility Model Content

[0005] The purpose of this utility model is to provide a height restriction frame for parking garage vehicle management, so as to solve the problems of insufficient safety and ease of use, and low level of intelligence of the height restriction frame mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a height restriction frame for parking garage vehicle management, comprising two vertically arranged support columns and a horizontally connected height restriction beam between the two support columns; and further comprising:

[0007] The crossbeam buffer guide rail mechanism is set on the top of the support column, including a guide groove fixed to the top of the support column and a guide slider slidably connected in the guide groove. The height limiting crossbeam can move horizontally back and forth within a set range through the cooperation of the guide slider and the guide groove.

[0008] A buffer reset mechanism is installed between the height-limiting beam and the supporting column. It includes a beam support frame fixed to the lower part of the height-limiting beam, a shear pin passing through the support pin hole on the beam support frame, a hydraulic buffer connecting the beam support frame and the supporting column, and a disc-shaped reset spring assembly sleeved on the outside of the hydraulic buffer. The front end of the hydraulic buffer is fixed to the beam support frame through a buffer front baffle, and the rear end is fixed to the supporting column through a rear limiting plate. It is used to absorb impact energy and drive the height-limiting beam to reset slowly.

[0009] Furthermore, it also includes an alarm mechanism, located at the rear end of the guide slide, including a micro switch and an audible and visual alarm electrically connected to it. When the height-limiting beam is impacted and moves backward, triggering the micro switch, the audible and visual alarm is activated.

[0010] Furthermore, limiting screw holes are provided at both the front and rear ends of the guide slide, and the slide locking bolt is screwed into the limiting screw holes to limit the sliding stroke of the guide slider.

[0011] Furthermore, after the shear pin passes through the support pin hole of the crossbeam support frame, it is locked by a locking nut threaded to the bottom of the shear pin. Its shear strength is set to break under overload impact to protect the buffer reset mechanism.

[0012] Furthermore, the hydraulic buffer is coaxially sleeved with the disc-shaped return spring assembly.

[0013] Furthermore, the outer surface of the height-limiting beam is covered with a highly reflective warning strip to enhance visibility in low-light environments.

[0014] Furthermore, the bottom of the support column is equipped with an anti-collision warning cover, and the surface is provided with highly reflective warning signs.

[0015] This utility model has at least the following beneficial effects:

[0016] In use, this utility model absorbs vehicle impact energy through a buffer reset mechanism composed of a hydraulic buffer and a disc-shaped reset spring assembly, reducing damage to the vehicle and the height restriction frame itself. After impact, the height restriction beam can slowly reset under the action of the spring without manual intervention, improving the continuity of use and maintenance efficiency. When the impact force exceeds the set threshold, the shear pin is cut off, and the beam support frame remains connected to the support column through the rear limit plate to prevent the height restriction beam from falling. The audible and visual alarm is triggered by a micro switch to provide immediate feedback on the impact event, facilitating timely handling by management personnel. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a partially enlarged schematic diagram of the present invention;

[0019] Figure 3 This is a schematic diagram of the crossbeam buffer guide rail mechanism of this utility model;

[0020] Figure 4 This is a schematic diagram of the buffer reset mechanism of this utility model;

[0021] Figure 5 This is a schematic diagram of the alarm mechanism of this utility model.

[0022] In the diagram: 1. Support column; 2. Height-limiting crossbeam; 3. Crossbeam buffer guide rail mechanism; 31. Guide groove; 32. Guide slider; 33. Limiting screw hole; 34. Groove locking bolt; 4. Buffer reset mechanism; 41. Hydraulic buffer; 42. Disc-shaped reset spring assembly; 43. Crossbeam support frame; 44. Shear pin; 45. Locking nut; 46. Buffer front baffle; 47. Rear limiting plate; 48. Support frame pin hole; 5. Alarm mechanism; 51. Micro switch; 52. Audible and visual alarm; 6. High reflective warning strip; 7. Anti-collision warning cover. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] As one embodiment of this utility model, such as Figure 1 As shown, a height restriction frame for parking garage vehicle management includes: a support column 1, a height restriction beam 2, a beam buffer guide rail mechanism 3, a buffer reset mechanism 4, and an alarm mechanism 5.

[0025] In specific implementation, the crossbeam buffer guide rail mechanism 3 is set between the support column 1 and the height-limiting crossbeam 2, forming a sliding connection frame, so that the height-limiting crossbeam 2 can reciprocate along the vehicle's direction of travel in the horizontal plane with a set stroke (usually 150-300mm); the buffer reset mechanism 4 is set between the support column 1 and the height-limiting crossbeam 2, forming a two-way energy absorption system, which dissipates kinetic energy and stores elastic potential energy during impact, so that the height-limiting crossbeam 2 can slowly reset after movement; the alarm mechanism 5 is set on the top of the support column 1, and the alarm mechanism 5 issues an alarm after the height-limiting crossbeam 2 undergoes a preset amplitude displacement.

[0026] In one embodiment of this utility model, the support columns 1 are vertically installed on both sides of the ground to support the overall structure. The support columns 1 are made of square hollow steel and are anchored to the concrete foundation at the bottom by expansion bolts. The surface is hot-dip galvanized to improve weather resistance. The spacing between the columns is set according to the width of the lane (the standard value is 3.5-4.0 meters). A height-limiting beam 2 is installed horizontally between two support columns 1 to limit the height of vehicles passing through.

[0027] like Figure 3 As shown, the crossbeam buffer guide rail mechanism 3 is set between the support column 1 and the height-limiting crossbeam 2. The crossbeam buffer guide rail mechanism 3 includes a guide groove 31 fixedly connected to the top of the support column. In specific implementation, the guide groove 31 is made of high-strength alloy steel precision casting, and the cross section is an "I" shaped guide rail structure. After being calibrated by a laser level, it is welded and fixed to the top of the support column 1. The guide groove 31 has limit screw holes 33 at the front and rear. The limit screw holes 33 are connected to the groove locking bolts 34 by threads. The guide slider 32 is slidably connected inside the guide groove 31. The sliding surface is precision machined and coated with grease to reduce frictional resistance. When the height-limiting crossbeam 2 is impacted by external force, the guide slider 32 slides along the guide groove 31, guiding the height-limiting crossbeam 2 to move smoothly within a preset range, avoiding structural damage caused by hard collision.

[0028] In one embodiment of this utility model, such as Figure 2 As shown, the buffer reset mechanism 4 is set between the support column 1 and the height limiting beam 2. The buffer reset mechanism 4 includes a beam support bracket 43 fixedly connected to the lower part of the height limiting beam 2. The bottom of the beam support bracket 43 has a support bracket pin hole 48 and a shear pin 44 is installed. The shear pin 44 is threadedly connected by a locking nut 45. The shear strength is set according to actual needs to ensure that the connection remains stable under normal load, while it can be sheared to release energy when overloaded.

[0029] like Figure 4 As shown, the front end of the hydraulic buffer 41 is fixedly connected to a buffer front baffle 46 (made of Q235 steel plate, bolted to the crossbeam support frame 43). The hydraulic buffer 41 is an industrial-grade heavy-duty buffer with adjustable damping coefficient (such as ACE MC series), filled with silicone-based hydraulic oil. Its rear end is fixedly connected to a rear limiting plate 47, which is reinforced and welded to the top of the support column 1 by four-way ribs. The hydraulic buffer 41 is externally fitted with a disc-shaped return spring assembly 42. The two work together. When an impact occurs, the hydraulic buffer 41 absorbs the impact kinetic energy through damping, while compressing the disc-shaped return spring assembly 42 to store elastic potential energy. After the impact, the disc-shaped return spring assembly 42 pushes the hydraulic buffer 41 to slowly rebound, driving the height limiting crossbeam 2 to return to its original position. The rear limiting plate 47 is fixedly connected to the top of the support column 1 to limit the maximum displacement range of the height limiting crossbeam 2 and prevent excessive displacement.

[0030] In one embodiment of this utility model, such as Figure 2 As shown, the alarm mechanism 5 is installed on the top of the support column 1. The alarm mechanism 5 includes a micro switch 51 fixed to the rear end of the guide slide 31. An audible and visual alarm 52 is fixedly connected below the micro switch 51. When the guide slider 32 slides backward to the preset position due to the impact, it triggers the micro switch 51 and activates the audible and visual alarm 52 to remind the driver and management personnel to pay attention to the abnormal situation.

[0031] In one embodiment of this utility model, a collision warning cover 7 is provided at the bottom of the supporting column. The collision warning cover 7 is made of highly reflective material and has warning signs on its surface. The collision warning cover 7 is used to remind pedestrians and vehicles of the presence of the height restriction frame and prevent accidental collisions that could cause structural damage or personal injury. A highly reflective warning strip 6 is provided on the outer surface of the height restriction beam to enhance the visibility of the height restriction frame in low-light environments, improve driver recognition efficiency, and enhance traffic safety in low-light conditions.

[0032] In one embodiment of this utility model, it is understood that when an oversized vehicle collides with the height-limiting crossbeam 2, the guide slider 32 moves backward along the guide groove 31, the piston rod of the hydraulic buffer 41 is compressed to generate hydraulic damping, and the disc-shaped return spring assembly 42 is compressed to store energy. If the impact force is less than the shear threshold, the spring assembly 42 releases energy after the impact to push the crossbeam to automatically reset (reset time 3-5 seconds); if the impact force is greater than the shear threshold, the shear pin 44 breaks to release energy, and the crossbeam support frame 43 is kept suspended by the column anchor baffle 47 to avoid the risk of falling.

[0033] It should be noted that the micro switch 51 preferably uses a displacement trigger sensor 51 (Hall effect non-contact sensor) to detect the displacement of the magnetic target of the guide slider 32. Its multi-level alarm strategy is as follows: when the detected displacement reaches 50% of the stroke, the audible and visual alarm 52 (120dB buzzer + LED strobe) is triggered; when the displacement reaches 80% of the stroke, a wireless signal is simultaneously sent to the garage management center; when the shear pin breaks, a constantly lit red warning light is activated.

[0034] The anti-collision warning cover 7 adopts a sandwich structure (outer 3M diamond-grade reflective film + middle EPDM foam layer + inner 304 stainless steel shell), with an impact resistance rating of IK10.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A height restriction frame for parking garage vehicle management, characterized in that, include: Two vertically arranged support columns (1) and a horizontally connected height-limiting beam (2) between the two support columns (1); also includes: The crossbeam buffer guide rail mechanism (3) is set on the top of the support column (1), including a guide groove (31) fixed on the top of the support column (1) and a guide slider (32) slidably connected in the guide groove (31). The height limiting crossbeam (2) can move horizontally back and forth within a set range through the cooperation of the guide slider (32) and the guide groove (31). The buffer reset mechanism (4) is set between the height limiting beam (2) and the support column (1), including a beam support bracket (43) fixed at the lower part of the height limiting beam (2), a shear pin (44) passing through the support pin hole (48) on the beam support bracket (43), a hydraulic buffer (41) connecting the beam support bracket (43) and the support column (1), and a disc-shaped reset spring assembly (42) sleeved on the outside of the hydraulic buffer (41); the front end of the hydraulic buffer (41) is fixed to the beam support bracket (43) through the buffer front baffle (46), and the rear end is fixed to the support column (1) through the rear limit plate (47), which is used to absorb impact energy and drive the height limiting beam (2) to reset slowly.

2. The height restriction frame for parking garage vehicle management according to claim 1, characterized in that: It also includes an alarm mechanism (5), which is located at the rear end of the guide slide (31), including a micro switch (51) and an audible and visual alarm (52) electrically connected to it. When the height limit beam (2) is impacted and moves backward to trigger the micro switch (51), the audible and visual alarm (52) is activated.

3. The height restriction frame for parking garage vehicle management according to claim 1 or 2, characterized in that: The guide slide (31) has limiting screw holes (33) at both the front and rear ends. The slide locking bolt (34) is screwed into the limiting screw hole (33) to limit the sliding stroke of the guide slider (32).

4. The height restriction frame for parking garage vehicle management according to claim 1, characterized in that: After the shear pin (44) passes through the support pin hole (48) of the crossbeam support bracket (43), it is locked by the locking nut (45) at the bottom of the shear pin (44) through a threaded connection. Its shear strength is set to break in case of overload impact to protect the buffer reset mechanism (4).

5. The height restriction frame for parking garage vehicle management according to claim 1, characterized in that: The hydraulic buffer (41) is coaxially sleeved with the disc-shaped return spring assembly (42).

6. The height restriction frame for parking garage vehicle management according to claim 2, characterized in that: The height-limiting beam (2) is covered with a highly reflective warning strip (6) to enhance visibility in low-light environments.

7. The height restriction frame for parking garage vehicle management according to claim 1, characterized in that: The bottom of the support column (1) is equipped with a collision warning cover (7) and the surface is provided with a high reflective warning sign.

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