Guardrail rotating seat device

Abstract

The utility model provides a guardrail rotating seat device which comprises a rotating shaft, a screw rod and a spring fixing seat, and the rotating shaft is connected with the spring fixing seat through the screw rod. The end, facing the rotating shaft, of the spring fixing base is provided with a screw hole for the screw to penetrate through, the end, away from the rotating shaft, of the spring fixing base is provided with a spring mounting hole, a spring is arranged in the spring mounting hole, a gasket is arranged on the rear side of the spring, and hexagonal locking nuts are arranged at the front end and the rear end of the screw. The ladder-shaped clamping groove and the ladder-shaped clamping plate which are matched with each other are arranged, so that the rotating shaft provided with the guardrail can be inserted into the spring fixing seat, and meanwhile, the connection stability of the rotating shaft and the spring fixing seat is kept through the tension of the spring; and by arranging a screw rod and a hexagon nut, the rotating shaft can be easily pulled out to rotate, the guardrail can be rotated to a required state without disassembly, and the use is rapid and convenient.

Description

Technical Field

[0001] This utility model relates to the field of special vehicles, and in particular to a guardrail rotating seat device for emergency vehicles with wing-shaped double doors and hanging ladders. Background Technology

[0002] Guardrails are common safety devices on special-purpose vehicles, such as the guardrails on the wing-shaped double doors of food service vehicles and the handrails on ladders. These devices can better protect personal safety in emergency situations. Currently, guardrail fixing methods typically include the following: 1. Welding two short round tubes directly to the guardrail installation point, hanging the guardrail on the door, and then inserting the two side bars of the guardrail into the pre-drilled short round tubes for fixation when needed. 2. Setting slots in the base plate and installing mechanical locks at the connection points of the guardrail. When the guardrail is adjusted to the appropriate position, the locks automatically engage with the corresponding slots to achieve fixation.

[0003] The existing guardrail fixing devices have the following problems: 1. Cumbersome fixing: The guardrail needs to be manually inserted into the reserved holes or fixed by mechanical locking, which is time-consuming and unsuitable for emergency scenarios. 2. Inconvenient storage: The disassembled guardrail requires extra space for storage, which can easily cause damage or occupy the vehicle's interior space. 3. Insufficient reliability: Wear and tear on the holes or slots can easily cause the guardrail to loosen, resulting in noise and structural damage when the vehicle is in motion. Utility Model Content

[0004] The purpose of this utility model is to provide a guardrail rotating seat device that combines safety, ease of operation and space saving, so as to solve the technical problems mentioned in the background art.

[0005] The present invention adopts the following technical solution: a guardrail rotating seat device, comprising a rotating shaft, a screw, and a spring fixing seat, wherein the rotating shaft is connected to the spring fixing seat via the screw; the spring fixing seat has a screw hole at one end facing the rotating shaft for the screw to pass through, and a spring mounting hole is provided at the other end of the spring fixing seat away from the rotating shaft, into which a spring is installed, and a washer is provided on the rear side of the spring, the washer being embedded in the spring mounting hole; and hexagonal locking nuts are provided at both the front and rear ends of the screw.

[0006] Furthermore, the end of the spring fixing seat facing the rotation shaft is provided with a trapezoidal transverse groove and a longitudinal groove that are wider at the front and narrower at the back, and the side of the rotation shaft opposite to the spring fixing seat is provided with a trapezoidal clamping plate that cooperates with the transverse groove and the longitudinal groove.

[0007] Furthermore, it also includes a base plate, and the spring fixing seat is fixedly mounted on the upper end surface of the base plate by welding.

[0008] Furthermore, the base plate is a 5mm thick plate.

[0009] Furthermore, the rotating shaft is cylindrical, and a stainless steel guardrail is welded to its circumference.

[0010] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0011] 1. This utility model, by setting mutually cooperating trapezoidal slots and trapezoidal plates, allows the rotating shaft with the guardrail to be inserted into the spring fixing seat, while the tension of the spring maintains the connection stability of the two; and by setting screws and hexagonal nuts, the rotating shaft can be easily pulled out and rotated, and the guardrail can be rotated to the desired state without disassembly, making it quick and convenient to use;

[0012] 2. The structural design of this utility model solves the problem of unreliable and unsafe guardrails at the expansion section when the double-leaf door expands outwards. It also solves the problems of swaying and lack of handrails during use, significantly improving the user experience and safety. It addresses the issues of insecure fixing and inconvenience in use. Furthermore, it ensures the safety of people of various weights standing at the expansion section. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0014] Figure 2 This is a schematic diagram showing the disassembled parts of this utility model;

[0015] Figure 3 This is a schematic diagram of the rear side of the spring fixing seat;

[0016] Figure 4 This is a schematic diagram showing the connection between the guardrail and this utility model;

[0017] Figure 5 This is a schematic diagram showing the installation of guardrails on the inner door panels of the left and right wing-shaped double doors of the food service vehicle.

[0018] Legend: 1-Rotating shaft, 2-Screw, 3-Spring fixing seat, 4-Spring, 5-Washer, 6-Hexagonal lock nut, 7-Base plate, 8-Guardrail, 11-Clamping plate, 31-Screw hole, 32-Spring mounting hole, 33-Horizontal groove, 34-Longitudinal groove. Detailed Implementation

[0019] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0020] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Specifically, the terms "first position" and "second position" refer to two different positions.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0022] Please see Figure 1-5 This utility model provides a guardrail rotating seat device, including a rotating shaft 1, a screw 2, and a spring fixing seat 3. The rotating shaft 1 is connected to the spring fixing seat 3 via the screw 2. The spring fixing seat 3 has a screw hole 31 at one end facing the rotating shaft 1 for the screw 2 to pass through, and a spring mounting hole 32 at the other end away from the rotating shaft 1, containing a spring 4. A washer 5 is provided on the rear side of the spring 4, and the washer 5 is embedded in the spring mounting hole 32 to limit the movement of the spring 4. During use, the washer 5 also ensures the sealing of the device and reduces wear caused by impact, ensuring the buffering and sealing function of the device. Hexagonal locking nuts 6 are provided at both the front and rear ends of the screw 2. After the rotating shaft 1 and the spring fixing seat 3 are connected, they are fixed by the hexagonal locking nuts 6. At the same time, the spring 4 pulls the rotating shaft 1, keeping the rotating shaft 1 connected to the spring fixing seat 3.

[0023] Further as Figure 2 , 3 As shown, the spring fixing seat 3 has a trapezoidal transverse groove 33 and a longitudinal groove 34 with a wider front and narrower back at one end facing the rotating shaft 1. The rotating shaft 1 has a trapezoidal clamping plate 11 on the side opposite to the spring fixing seat 3, which cooperates with the transverse groove 33 and the longitudinal groove 34. After the rotating shaft 1 rotates, the clamping plate 11 can be inserted into the transverse groove 33 and the longitudinal groove 34 respectively, and the rotating shaft 1 can be kept fixed.

[0024] Further as Figure 1 , 2As shown, it also includes a base plate 7. The spring fixing seat 3 is fixedly mounted on the upper surface of the base plate 7 by welding. The lower surface of the base plate 7 is detachably locked onto the side of the vehicle door panel or ladder by means of screws or pins. The base plate 7 is used to fix the spring fixing seat 3. It is a 5mm thick plate to ensure that it will not deform during use, and at the same time to ensure that the spring fixing seat 3 will not wobble due to vehicle bumps or people leaning against it.

[0025] Further as Figure 1 , 2 As shown in Figures 4 and 5, the rotating shaft 1 is cylindrical, and a stainless steel guardrail 8 is welded onto its circumference.

[0026] The guardrail rotation device of this utility model is installed on the inner door panel of the left and right wings of the food service vehicle, or on the side of the ladder. During installation, first, put the spring 4 into the spring mounting hole 32 of the spring fixing seat 3, then put in the washer 5. Position the clamping plate 11 of the rotating shaft 1 towards the side of the transverse clamping groove 33 and the longitudinal clamping groove 34 of the spring fixing seat 3. Then, pass the screw 2 through the rotating shaft 1, the screw hole 31 of the spring fixing seat 3, the spring 4 and the washer 5 in sequence, and then pass it out from the rear side of the spring fixing seat 3. Then, install two hexagonal locking nuts 6 into the two ends of the screw 2 respectively to lock the entire device. Finally, install the base plate 7 on the vehicle door panel or the side of the ladder. When the guardrail 8 needs to be rotated, simply pull the rotating shaft 1 forward (towards the end furthest from the spring fixing seat 3). The screw 2 moves forward as a whole, and the rear hexagonal locking nut 6 moves the washer 5 forward, compressing the spring 4. The rotating shaft 1 then moves away from the spring fixing seat 3, allowing it to rotate and simultaneously rotate the guardrail 8. The maximum rotation angle can reach 180°. When the guardrail 8 is upright, the locking plate 11 engages with the longitudinal locking groove 32 to maintain the upright state of the guardrail 8. When the guardrail 8 is lowered, the locking plate 11 engages with the transverse locking groove 31. When the guardrail 8 is rotated to the desired position, the rotating shaft 1 is released, and the spring 4 returns to its original position, causing the rotating shaft 1 to engage with the corresponding locking groove to maintain the stability of the guardrail. When the spring 4 reaches the point of failure, it can be removed and replaced, making maintenance convenient and cost-effective. Even if the spring 4 fails, its connection and fixation remain reliable and safe.

[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A guardrail rotating seat device, characterized in that: The device includes a rotating shaft, a screw, and a spring fixing seat. The rotating shaft is connected to the spring fixing seat via the screw. The end of the spring fixing seat facing the rotating shaft has a screw hole for the screw to pass through. The end of the spring fixing seat away from the rotating shaft has a spring mounting hole containing a spring. A washer is provided on the rear side of the spring and is embedded in the spring mounting hole. Hexagonal lock nuts are provided at both the front and rear ends of the screw.

2. The guardrail rotating seat device according to claim 1, characterized in that: The spring fixing seat has a trapezoidal horizontal and vertical slots that are wider at the front and narrower at the back at one end facing the rotation shaft. The side of the rotation shaft opposite the spring fixing seat has a trapezoidal plate that cooperates with the horizontal and vertical slots.

3. The guardrail rotating seat device according to claim 1, characterized in that: It also includes a base plate, and the spring fixing seat is fixedly mounted on the upper end surface of the base plate by welding.

4. The guardrail rotating seat device according to claim 3, characterized in that: The base plate is 5mm thick.

5. A guardrail rotating seat device according to claim 1, characterized in that: The rotating shaft is cylindrical, and a stainless steel guardrail is welded to its circumference.

Images