CN211115365U - Downward-turning type door for vehicle - Google Patents
Downward-turning type door for vehicle Download PDFInfo
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- CN211115365U CN211115365U CN201921862523.1U CN201921862523U CN211115365U CN 211115365 U CN211115365 U CN 211115365U CN 201921862523 U CN201921862523 U CN 201921862523U CN 211115365 U CN211115365 U CN 211115365U
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- door
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- hinged
- supporting tube
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Abstract
The utility model discloses a turning over formula door under automobile-used includes: the car door is fixedly connected with a plurality of mounting rods hinged with the car body and is also hinged with a driving rod of an oil cylinder hinged on the car body; still include two at least symmetries and set up in the spring mechanism of hydro-cylinder both sides, every spring mechanism includes: a support tube; one end of the supporting tube is rotatably arranged on the fixed seat through a positioning pin; the guide block is fixedly arranged on the vehicle door and is provided with a mounting hole for the other end of the supporting tube to pass through and freely stretch; and the spring is sleeved on the supporting tube and positioned between the fixed seat and the guide block. The utility model discloses spring mechanism under the condition that hydraulic system does not function, can the manual switch door reduce the operation degree of difficulty and risk, and the moment that partial door gravity produced has been offset to the moment that the effort of spring produced, can save most power, makes operation safe, reliable.
Description
Technical Field
The utility model relates to a vehicular downward-turning type door.
Background
As shown in fig. 1 to 3, some large vehicles currently employ a single-opening down-flap door, which includes: the device comprises a vehicle door 1, four mounting rods 2 hinged with a vehicle body are fixedly connected to the vehicle door 1, the vehicle door 1 is further hinged with a driving rod of an oil cylinder 3 hinged on the vehicle body, the structural schematic diagrams of the closed state of a downward-turning door are shown in the figures 1 and 2, the structural schematic diagram of the opened state of the downward-turning door is shown in the figure 3, two protective chains 4 are connected between the vehicle door 1 and the vehicle body, and three steps 11 are arranged on the vehicle door 1 and can be used for people to climb; the door is convenient to use, but the door has large mass, the door opening and closing operation needs to be executed by means of a hydraulic oil cylinder, and under the normal condition, a driver presses a button, so that the door can be opened or closed. However, the mechanism needs a hydraulic system and an electrical system to be matched, and a certain link in one or two systems fails, so that the door cannot be normally used.
Disclosure of Invention
The utility model aims at providing an automobile-used formula door that turns over down in order to solve above-mentioned problem, reduce the manual door operation degree of difficulty and risk of opening, operate more laborsaving, safe, reliable.
The purpose of the utility model is realized like this:
the utility model discloses a vehicular downward-turning type door, this downward-turning type door includes: the car door is fixedly connected with a plurality of mounting rods hinged with the car body and is also hinged with a driving rod of an oil cylinder hinged on the car body; this formula door that turns down still includes:
at least two symmetries set up in the spring mechanism of hydro-cylinder both sides, and every spring mechanism includes:
a support tube;
one end of the supporting tube is rotatably arranged on the fixed seat through a positioning pin;
the guide block is fixedly arranged on the vehicle door and is provided with a mounting hole for the other end of the supporting tube to pass through and freely stretch; and
and the spring is sleeved on the supporting tube and positioned between the fixed seat and the guide block.
Two protective chains are arranged between the upper end of the vehicle door in the downward-turning type door for the vehicle and the top of the vehicle body.
The vehicle door in the downward-turning type door for the vehicle is provided with a plurality of layers of steps.
The utility model discloses spring mechanism under the condition that hydraulic system does not function, can the manual switch door reduce the operation degree of difficulty and risk, and the moment that partial door gravity produced has been offset to the moment that the effort of spring produced, can save most power, makes operation safe, reliable.
Drawings
FIG. 1 is a schematic structural view of the improved front closed state of the flip-down door of the present invention;
FIG. 2 is a right side view of FIG. 1;
FIG. 3 is a schematic structural view of the improved front opening state of the downward-turning door of the present invention;
fig. 4 is a schematic structural view of the downward-turning door closed state of the present invention;
FIG. 5 is a right side view of FIG. 4;
fig. 6 is a schematic structural view of the open state of the downward-turning door of the present invention.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
Referring to fig. 4 to 6, there is shown a down-turned door for a vehicle of the present invention, including:
the car door 1 is fixedly connected with four mounting rods 2 and hinged with the car body, and the car door 1 is also hinged with a driving rod of an oil cylinder 3 hinged on the car body; the upper end of the vehicle door 1 is provided with three layers of steps 11, and two protective chains 4 are connected between the upper end of the vehicle door and the top of the vehicle body;
still include two symmetries and set up in the spring mechanism 5 of 3 both sides of hydro-cylinder, every spring mechanism 5 includes:
a support tube 51;
a fixed seat 52 installed on the vehicle body, one end of the supporting tube 51 is rotatably installed on the fixed seat 52 through a positioning pin 53;
a guide block 54 fixedly mounted on the vehicle door 1 and provided with a mounting hole for the other end of the support tube 51 to pass through and freely extend and retract;
a spring 55 sleeved on the support pipe 51 and positioned between the fixed seat 52 and the guide block 54;
the dimensions and rigidity of the spring 55 are calculated from parameters such as the mass and the center of gravity of the door 1, and the amount of spring compression at each position of the door 1.
When the door is opened, two persons pull the protective chain 4 in the vehicle to slowly push the vehicle door 1 open, the vehicle door 1 is slowly put down, the person cannot stand under the vehicle door 1, the spring 55 is in a free state when the vehicle door 1 is in a vertical state, the gravity center of the vehicle door 1 is at the inner side, and the gravity moment can be overcome when the door is opened. The weight arm of the door 1 is also smaller, so the weight moment to be overcome is also smaller. After the vehicle door 1 rotates through the balance plane, the gravity arm is increased and the gravity moment is increased along with the opening of the vehicle door 1. The spring force and arm of the spring 55 are simultaneously increased, and the spring moment is increased. Because the action directions of the spring moment and the gravity moment on the vehicle door 1 are opposite, the spring moment offsets part of the gravity moment, so that a person can smoothly open the vehicle door 1.
When the door is closed, a person lifts the door 1 under the door, a person pulls the protection chain 4 on the door, the door can be closed smoothly, and the stress process of the system is opposite to that of the door. In the whole process of opening and closing the door, the acting force of the spring 55 on the door counteracts partial gravity action, and personnel can safely and smoothly open and close the vehicle door 1.
The above embodiments are provided only for the purpose of illustration, not for the limitation of the present invention, and those skilled in the relevant art can make various changes or modifications without departing from the spirit and scope of the present invention, therefore, all equivalent technical solutions should also belong to the scope of the present invention, and should be defined by the claims.
Claims (3)
1. A roll-down door for a vehicle, the roll-down door comprising: the car door is fixedly connected with a plurality of mounting rods hinged with the car body and is also hinged with a driving rod of an oil cylinder hinged on the car body; characterized in that, the downward-turning type door further comprises:
at least two symmetries set up in the spring mechanism of hydro-cylinder both sides, every spring mechanism includes:
a support tube;
one end of the supporting tube is rotatably arranged on the fixed seat through a positioning pin;
the guide block is fixedly arranged on the vehicle door and is provided with a mounting hole for the other end of the supporting tube to pass through and freely stretch; and
and the spring is sleeved on the supporting tube and positioned between the fixed seat and the guide block.
2. The roll-down door for a vehicle as claimed in claim 1, wherein two guard chains are provided between the upper end of the door and the roof of the vehicle body.
3. The roll-down door for a vehicle of claim 1, wherein the door has a plurality of steps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921862523.1U CN211115365U (en) | 2019-10-31 | 2019-10-31 | Downward-turning type door for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921862523.1U CN211115365U (en) | 2019-10-31 | 2019-10-31 | Downward-turning type door for vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211115365U true CN211115365U (en) | 2020-07-28 |
Family
ID=71695406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921862523.1U Active CN211115365U (en) | 2019-10-31 | 2019-10-31 | Downward-turning type door for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211115365U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114312582A (en) * | 2022-01-24 | 2022-04-12 | 国唐汽车有限公司 | Downward-turning type passenger car safety door |
-
2019
- 2019-10-31 CN CN201921862523.1U patent/CN211115365U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114312582A (en) * | 2022-01-24 | 2022-04-12 | 国唐汽车有限公司 | Downward-turning type passenger car safety door |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A down turning door for vehicle Effective date of registration: 20211230 Granted publication date: 20200728 Pledgee: Bank of Jiangsu Co.,Ltd. Shanghai Nanhui sub branch Pledgor: Shanghai xingjieda special equipment Co.,Ltd. Registration number: Y2021310000178 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20221216 Granted publication date: 20200728 Pledgee: Bank of Jiangsu Co.,Ltd. Shanghai Nanhui sub branch Pledgor: Shanghai xingjieda special equipment Co.,Ltd. Registration number: Y2021310000178 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A type of car bottom flip door Effective date of registration: 20230627 Granted publication date: 20200728 Pledgee: Bank of Jiangsu Co.,Ltd. Shanghai Nanhui sub branch Pledgor: Shanghai xingjieda special equipment Co.,Ltd. Registration number: Y2023310000312 |