Travel group passenger car seat backrest inclination angle verification tool and method

Abstract

The invention relates to a travel group passenger car seat backrest inclination angle verification tool and method, and the tool comprises a tool bottom frame, one side of the top surface of the tool bottom frame is provided with a backrest blocking frame, the top of the backrest blocking frame is provided with a contact part which is in contact with the upper end of a seat backrest, and the top surface of the backrest blocking frame is provided with a seat fixing mechanism which is matched with seat bottom profile steel. At least two contact areas are arranged on the front side face of the contact part, detection openings are formed in the contact areas, pressure detection elements fixed to the backrest blocking frame are arranged on the detection openings, distance detection elements fixed to the backrest blocking frame are arranged behind the detection openings, and the production efficiency and the product quality are improved by means of the tool.

Description

Technical Field

[0001] The invention relates to the technical field of buses, and in particular to a tool and method for verifying the inclination angle of a seat backrest of a bus for a group of buses. Background Art

[0002] The statements herein merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] In the production process of brigade buses, the installation of seats in the car is an indispensable part. Among them, there are many requirements for the spacing of seat installation, which not only affects the passenger's riding experience, but also affects the safety of the vehicle. Reasonable seat spacing can not only improve the comfort of passengers, but also ensure the safety of the vehicle and the emergency evacuation needs of passengers. There is a lack of tooling to ensure and inspect the tilt angle of the seat backs. In the original verification method, the inspectors visually inspect that the backrest angles of the two seats are roughly the same, and then measure the spacing between the front and rear seats after installing the seats on the car. If the requirements are not met, they will be adjusted. The original verification method has low accuracy, and the measurement and adjustment are made after getting on the car, which is inconvenient and greatly reduces efficiency. Summary of the invention

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a vehicle coach seat back tilt angle verification tool and method, which has a simple structure, is ready for processing, is easy to operate, has a low investment cost, and greatly improves production efficiency and product quality.

[0005] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0006] In the first aspect, an embodiment of the present invention provides a tool for verifying the inclination angle of a seat back of a group bus, comprising a tool base frame, a backrest stop frame is arranged on one side of the top surface of the tool base frame, a contact component for contacting the upper end of the seat back is arranged on the top of the backrest stop frame, a seat fixing mechanism matching the bottom steel section of the seat is arranged on the top surface of the backrest stop frame, at least two contact areas are arranged on the front side surface of the contact component, a detection port is arranged in the detection port, a pressure detection element fixed to the backrest stop frame is arranged, and a distance detection element fixed to the backrest stop frame is arranged behind the detection port.

[0007] Optionally, the distance sensor is a laser distance sensor, and the distance between the laser distance sensor probe and the front side of the contact component is greater than the minimum measurement distance of the laser distance sensor so that the laser distance sensor can measure the distance to the upper end of the support plate.

[0008] Optionally, the pressure detection element is a pressure sensor, and a probe of the pressure sensor protrudes to the front of the detection port.

[0009] Optionally, the contact component is a contact plate, which is fixed to the top of the backrest frame, and a detection port is provided in the contact area of ​​the contact plate.

[0010] Optionally, the backrest frame adopts a rectangular frame structure, the bottom end of the rectangular frame structure is fixedly connected to the base frame, the top end of the rectangular frame structure is connected to the contact component, a detection element bracket is provided on the rectangular frame, and a pressure detection element and a distance detection element are installed on the detection element bracket.

[0011] Optionally, the seat fixing mechanism adopts a seat fixing strip fixed to the tooling chassis, the seat fixing strip is provided with a fixing groove, and the width of the fixing groove matches the distance between the side surfaces of two steel sections on the bottom surface of the seat that are away from each other.

[0012] Optionally, a plurality of seat fixing strips are provided, and the plurality of seat fixing strips are arranged in parallel.

[0013] Optionally, the tooling chassis includes a bottom frame, which is fixedly connected to the bottom end of the backrest baffle frame, and the bottom frame is fixed to the tops of the multiple legs.

[0014] In a second aspect, an embodiment of the present invention provides a method for verifying the inclination angle of a seat backrest of a coach:

[0015] The seat to be tested is fixed on the tooling frame through the seat fixing mechanism. At this time, the top of the seat backrest contacts the contact part.

[0016] When the measured value of the pressure detection element is not less than the set pressure value, the backrest extrusion deformation exceeds the set deformation, indicating that the backrest tilt angle is too large. Adjust the backrest to reduce the backrest tilt angle until the measured value of the pressure detection element is less than the set pressure value and the measured value of the distance detection element is less than the set distance value.

[0017] When the measured value of the distance detection element is not less than the set distance value, it means that the backrest inclination angle is too small. Adjust the backrest and increase the backrest inclination angle until the measured value of the distance detection element is less than the set distance value and the measured value of the pressure detection element is less than the set pressure value.

[0018] Optionally, after the backrest is adjusted, the difference between the pressure measurement values ​​of multiple backrests measured by the pressure detection element is less than a first set value, and the difference between the distance measurement values ​​of multiple backrests measured by the distance detection element is less than a second set value to meet the consistency requirement of the tilt angles of multiple seat backrests.

[0019] The beneficial effects of the present invention are as follows:

[0020] 1. The verification tooling and method of the present invention have a contact plate and a seat fixing mechanism. When in use, the seat only needs to be fixed on the tooling frame through the seat fixing mechanism, and the upper end of the backrest is in contact with the contact component. The pressure detection element and the distance detection element can be used to determine whether the inclination angle of the backrest is qualified, and the inclination angle of the backrest can be adjusted on the tooling to meet the angle requirements. The angle detection result is more accurate by measuring with the pressure detection element and the distance detection element, and all detection and adjustment operations are performed on the tooling under the vehicle, without the need for on-vehicle operation. The operation is more convenient and quick, thereby improving the efficiency of seat back adjustment and the quality of seat products.

[0021] 2. The verification tool of the present invention has a rectangular frame structure for the backrest frame, the tool base frame includes a bottom frame and legs, and the seat fixing mechanism is made of a seat fixing strip processed into a fixing groove. The entire tool structure is simple and easy to process, and the frame structure can be made of existing profiles, so that the processing and manufacturing cost of the entire tool is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0023] Figure 1 This is a front view of the overall structure of Example 1 of the present invention;

[0024] Figure 2 is a side view of the overall structure of embodiment 1 of the present invention;

[0025] Figure 3 The present invention Figure 1 A-direction schematic diagram in FIG.

[0026] Figure 4 is a side view of the use state of embodiment 2 of the present invention;

[0027] Figure 5 This is the main view of the use status of embodiment 2 of the present invention;

[0028] Among them, 1. bottom frame, 2. support feet, 3. backrest frame, 4. contact plate, 5. seat, 6. detection port, 7. detection element bracket, 8. pressure sensor, 9. laser ranging sensor, 10. control box, 11. seat fixing strip, 12. fixing groove, 13. profile. DETAILED DESCRIPTION

[0029] Example 1

[0030] This embodiment provides a vehicle seat back tilt angle verification tool, such as Figure 1-Figure 3As shown, it includes a tooling frame, a backrest stopper is vertically fixed to one side of the tooling frame, a contact component is provided on the top of the backrest stopper, a seat fixing mechanism is provided on the tooling frame, the seat fixing mechanism is used to be clamped and fixed with the bottom surface of the seat, the contact component is used to contact the upper end of the seat backrest, and at least two contact areas are provided on the contact component, each contact area is in contact with the upper end of the backrest of the corresponding seat, and at least two seats can be fixed on the tooling frame through the seat fixing mechanism, and the backrests of two or more seats can be adjusted at the same time to keep their inclination angles consistent.

[0031] In this embodiment, the contact component is provided with two contact areas, which can verify and adjust the inclination angles of the backrests of the two seats.

[0032] The tooling chassis includes a bottom frame 1, which is a rectangular frame. A connecting beam is provided in the middle of the rectangular frame to enhance the structural strength of the bottom frame. Preferably, the rectangular frame is welded by four square steels, and the connecting beam is also made of square steel. The connecting beam is welded and fixed to the rectangular frame, and the four corners of the bottom frame are welded and fixed to the top of the support leg 2. The support leg 2 is used to support the ground foundation. Preferably, the support leg 2 is also made of square steel.

[0033] Furthermore, reinforcing cross beams are welded and fixed between adjacent supporting legs 2. The reinforcing cross beams are also made of square steel and are used to increase the structural strength of the supporting legs and ensure the stability of the support.

[0034] One side of the bottom frame 1 is fixedly connected to the bottom end of the backrest frame 3. In this embodiment, the backrest frame 3 adopts a rectangular frame structure, which is welded by four square steels. The square steel at the bottom is welded and fixed to the bottom frame 1.

[0035] The top of the backrest frame 3 is fixed with a contact component. In the present embodiment, the contact component is a contact plate 4, on which two contact areas are arranged, one of which is used to contact the upper end of the backrest of a seat 5 to be verified, and the other is used to contact the upper end of the backrest of another seat 5 to be verified.

[0036] Both contact areas are provided with a detection port 6, at which a pressure detection element is provided, and behind the detection port a distance detection element is provided. The pressure detection element is used to detect the pressure applied to it by the seat back, and the distance detection element is used to detect the distance between it and the upper end of the seat back.

[0037] In this embodiment, the pressure detection element and the distance detection element are installed side by side on the detection element bracket 7 . The detection element bracket 7 is located behind the detection port 6 and is welded and fixed to the vertical square steel of the backrest frame 3 .

[0038] The pressure detection element adopts the existing pressure sensor 8 , and the probe of the pressure sensor 8 passes through the detection port 6 and extends to the front of the detection port 6 , so that the probe of the pressure sensor 8 can withstand the squeezing force of the backrest of the seat 5 .

[0039] The distance detection element adopts a laser distance sensor 9, and the distance between the probe of the laser distance sensor 9 and the front plate surface of the contact plate 4 is greater than the minimum measurement distance of the laser distance sensor 9, so that the laser distance sensor 9 can measure the distance between it and the backrest of the seat 5.

[0040] The pressure sensor 8 and the laser ranging sensor 9 are both connected to a control system fixed on the backrest frame. The control system is installed in a control box 10. The control box 10 is fixedly connected to the backrest frame 3. A display screen is also provided on the control box 10. The display screen is connected to the control system for displaying the data collected by the pressure sensor 8 and the laser ranging sensor 9.

[0041] The seat fixing mechanism adopts a plurality of seat fixing strips 11 which are parallel to each other. In the present embodiment, four seat fixing strips 11 are arranged on the bottom frame 1 of the tooling chassis, and each seat 5 is fixed by two seat fixing strips 11 .

[0042] The seat fixing strip 11 is welded and fixed to the bottom frame 1, and a fixing groove 12 is provided on the upper surface of the seat fixing strip 11. The width of the fixing groove 12 matches the distance between the mutually distant side surfaces of two profiles 13 set on the bottom surface of the seat to be verified, so that the two profiles 13 on the bottom surface of the seat 5 can be inserted into the fixing groove 12, thereby fixing the seat 5 to the tooling chassis.

[0043] In this embodiment, the width of the fixing groove 12 is the dimension of the fixing groove 12 along a direction perpendicular to the backrest stop frame 3 , and the width of the fixing groove 12 is the same as the distance between the side surfaces of the two profiles that are away from each other.

[0044] The tooling of this embodiment has a rectangular frame structure for the backrest frame 3, the tooling base frame includes a bottom frame 1 and a support leg 2, and the seat fixing mechanism is made of a seat fixing strip 11 with a fixing groove 13. The entire tooling structure is simple and easy to process, and the frame structure can be made of existing profiles, so that the processing and manufacturing cost of the entire tooling is low.

[0045] Example 2

[0046] This embodiment provides a working method of the vehicle seat back tilt angle verification tool described in Embodiment 1:

[0047] like Figure 4-Figure 5As shown, the profiles 13 on the bottom surfaces of the two seats 5 are respectively inserted into the two fixing grooves 13, thereby fixing the two seats 5 to the tooling chassis. At this time, the upper ends of the backrests of the two seats 5 are respectively matched with the two contact areas, and the pressure sensor 8 is used to detect the pressure of the two seat backs, and the laser ranging sensor 9 is used to detect the distance between the two seat backs.

[0048] When the measured value of the pressure sensor 8 is not less than the set pressure value, the backrest extrusion deformation exceeds the set deformation, indicating that the backrest tilt angle is too large. At this time, adjust the backrest to reduce the backrest tilt angle until the measured value of the pressure sensor 8 is less than the set pressure value and the measured value of the laser distance sensor 9 is less than the set distance value;

[0049] When the measurement value of the laser ranging sensor 9 is not less than the set distance value, it means that the distance between the backrest and the probe of the laser ranging sensor 9 is too large and the inclination angle of the backrest is too small. Adjust the backrest and increase the inclination angle of the backrest until the measurement value of the laser ranging sensor 9 is less than the set distance value and the measurement value of the pressure sensor 8 is less than the set pressure value.

[0050] The set pressure value and the set distance value can be set according to the actual working conditions and will not be described in detail here.

[0051] When adjusting the backrest, adjust the backrest until the difference between the measured values ​​of the two pressure sensors 8 is less than the first set value, and the difference between the measured values ​​of the two laser ranging sensors 9 is less than the second set value, so that the inclination angles of the two backrests meet the consistency requirements.

[0052] The first setting value and the second setting value can be set according to actual needs and will not be described in detail here.

[0053] When using the tooling of this embodiment, it is only necessary to fix the seat on the tooling base frame through the seat fixing mechanism, and the upper end of the backrest is in contact with the contact component. The pressure sensor and the laser ranging sensor can be used to determine whether the inclination angle of the backrest is qualified, and the inclination angle of the backrest can be adjusted on the tooling to meet the angle requirement. The angle detection result is more accurate by measuring with the pressure sensor and the laser ranging sensor, and all detection and adjustment operations are performed on the tooling under the vehicle. There is no need to perform operations on the vehicle. The operation is more convenient and quick, which improves the efficiency of the seat back adjustment work and the quality of the seat product.

[0054] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A vehicle seat back tilt angle verification tool, characterized in that: It includes a tooling base frame, a backrest stop frame is arranged on one side of the top surface of the tooling base frame, a contact component for contacting the upper end of the seat back is arranged on the top of the backrest stop frame, a seat fixing mechanism matching the steel section at the bottom of the seat is arranged on the top surface of the backrest stop frame, at least two contact areas are arranged on the front side surface of the contact component, the contact area is provided with a detection port, the detection port is provided with a pressure detection element fixed to the backrest stop frame, and a distance detection element fixed to the backrest stop frame is arranged behind the detection port.

2. A vehicle seat back tilt angle verification tool as claimed in claim 1, characterized in that: The distance sensor is a laser distance sensor, and the distance between the laser distance sensor probe and the front side of the contact component is greater than the minimum measuring distance of the laser distance sensor so that the laser distance sensor can measure the distance to the upper end of the support plate.

3. A vehicle seat back tilt angle verification tool as claimed in claim 1, characterized in that: The pressure detection element adopts a pressure sensor, and the probe of the pressure sensor protrudes to the front of the detection port.

4. A vehicle seat back tilt angle verification tool as claimed in claim 1, characterized in that: The contact component is a contact plate, which is fixed on the top of the backrest frame, and a detection port is arranged in the contact area of ​​the contact plate.

5. A vehicle seat back tilt angle verification tool as claimed in claim 1, characterized in that: The backrest frame adopts a rectangular frame structure, the bottom end of the rectangular frame structure is fixedly connected to the base frame, the top end of the rectangular frame structure is connected to the contact component, a detection element bracket is arranged on the rectangular frame, and a pressure detection element and a distance detection element are installed on the detection element bracket.

6. A vehicle seat back tilt angle verification tool as claimed in claim 1, characterized in that: The seat fixing mechanism adopts a seat fixing strip fixed on the tooling chassis, the seat fixing strip is provided with a fixing groove, and the width of the fixing groove matches the distance between the side surfaces of two steel sections on the bottom surface of the seat that are away from each other.

7. A vehicle seat back tilt angle verification tool as claimed in claim 6, characterized in that: A plurality of seat fixing strips are provided, and the plurality of seat fixing strips are arranged in parallel.

8. A vehicle seat back tilt angle verification tool as claimed in claim 1, characterized in that: The tooling chassis comprises a bottom frame, the bottom frame is fixedly connected to the bottom end of the backing plate stop frame, and the bottom frame is fixed to the tops of a plurality of supporting legs.

9. A method for operating a vehicle seat back tilt angle verification tool as claimed in any one of claims 1 to 8, characterized in that: The seat to be tested is fixed on the tooling chassis through the seat fixing mechanism, and the top of the seat backrest is in contact with the contact component; When the measured value of the pressure detection element is not less than the set pressure value, the backrest extrusion deformation exceeds the set deformation, indicating that the backrest tilt angle is too large. Adjust the backrest to reduce the backrest tilt angle until the measured value of the pressure detection element is less than the set pressure value and the measured value of the distance detection element is less than the set distance value. When the measured value of the distance detection element is not less than the set distance value, it means that the backrest inclination angle is too small. Adjust the backrest and increase the backrest inclination angle until the measured value of the distance detection element is less than the set distance value and the measured value of the pressure detection element is less than the set pressure value.

10. A method for verifying the inclination angle of a seat backrest of a group bus according to claim 9, characterized in that: After the backrest is adjusted, the difference between the pressure measurement values ​​of the multiple backrests measured by the pressure detection element is less than the first set value, and the difference between the distance measurement values ​​of the multiple backrests measured by the distance detection element is less than the second set value.

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