Test tool for verifying automobile zero-gravity seat backrest rapid return mechanism

Abstract

The utility model discloses a test tool for verifying an automobile zero-gravity seat backrest quick return mechanism. The test tool comprises a lower base, an upper base and a constant torque loading frame, wherein the lower base and the upper base are of a split structure, lower connecting plates are arranged on the two sides of the lower base, and first sample piece mounting holes are formed in the lower connecting plates; upper connecting plates are arranged on the two sides of the lower end of the upper base, second sample piece mounting holes are formed in the upper connecting plates, lower mounting points of the backrest quick return mechanism are mounted at the first sample piece mounting holes and connected with the lower base, and upper mounting points of the backrest quick return mechanism are mounted at the second sample piece mounting holes and connected with the upper base; the upper end of the upper base is provided with a cross beam, the center of the cross beam is a test loading point, and the cross beam is provided with a constant torque loading frame; the constant torque loading frame is of a fan-shaped structure, one end is provided with a pendant, and the other end is provided with a counterweight suspension rod; the hanging piece is installed on the cross beam, and the balance weight hanging rod is used for hanging the balance weight block. The tool is simple in overall structure, convenient to install and capable of being repeatedly used, and development and verification cost can be greatly saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile seats, and relates to a tooling for automobile seat detection, in particular to a test tooling for verifying the rapid return mechanism of the backrest of an automobile zero-gravity seat. Background Technique

[0002] Quick return mechanisms are usually installed on the seat cushions and backrests of existing automobile zero-gravity seats. After a collision occurs to a seat in the zero-gravity posture, the seat can return to a proper backrest angle and / or seat cushion angle along a predetermined route through the quick return mechanism, so as to optimize the sitting posture and improve the restraint protection for the occupant (CN 117565761 A discloses the working principle and specific structure of the backrest quick return mechanism). At present, during the development stage verification test of the quick return mechanism of the backrest of an automobile zero-gravity seat, in order to more truly reflect the verification accuracy of the mechanism, tests need to be carried out at the actual installation position. Since the quick return mechanism is part of the seat frame assembly and more than 90% of the tests are strength tests, if the seat frame assembly is used for the test, the tested samples cannot be reused, so the verification test will consume a large number of seat frame assemblies, increasing the development cost. Summary of the Invention

[0003] In view of the above technical problems and disadvantages, the purpose of the utility model is to provide a test tooling for verifying the quick return mechanism of the backrest of an automobile zero-gravity seat. The tooling is fixedly of a split structure, with a simple overall structure, convenient installation, and can be reused, greatly saving the development verification cost of the backrest quick return mechanism; in addition, the tooling is designed with a constant torque loading position, which can quickly and accurately achieve the constant torque loading condition required by the standard.

[0004] To achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A test tooling for verifying the quick return mechanism of the backrest of an automobile zero-gravity seat, comprising a lower base, an upper base, and a constant torque loading frame; wherein, the lower base and the upper base are of a split structure, lower connecting plates are arranged on both sides of the lower base, and first sample mounting holes are arranged on the lower connecting plates; upper connecting plates are arranged on both sides of the lower end of the upper base, and second sample mounting holes are arranged on the upper connecting plates. The lower mounting point of the backrest quick return mechanism is mounted at the first sample mounting hole and connected to the lower base, and the upper mounting point is mounted at the second sample mounting hole and connected to the upper base; a cross beam is arranged at the upper end of the upper base, the center of the cross beam is a test loading point, and a constant torque loading frame is mounted on the cross beam; the constant torque loading frame is of a fan-shaped structure, with a hanging member arranged at one end and a counterweight suspension rod arranged at the other end; the hanging member is mounted on the cross beam, and the counterweight suspension rod is used for hanging counterweight blocks.

[0006] As a preference of the present utility model, a detonator mounting plate is further provided at a position near the upper end of the upper base, and the detonator of the backrest quick return mechanism is fixed on the detonator mounting plate.

[0007] As a preference of the present utility model, the constant torque loading frame includes a sector main frame and U-shaped hanging parts and counterweight suspension rods arranged at both ends of the sector main frame; wherein, the sector main frame includes a horizontal connecting rod, a plurality of inclined connecting rods, and an arc connecting rod, and the horizontal connecting rod and the arc connecting rod are connected by a plurality of inclined connecting rods.

[0008] As a preference of the present utility model, the upper base includes a left support, a right support, a cross beam arranged between the left support and the right support, and a detonator mounting plate arranged on the top surfaces of the left support and the right support for connecting the left and right supports; a left upper connecting plate is arranged on the outer side of the left support; a right upper connecting plate is arranged on the outer side of the right support; the cross sections of the left upper connecting plate and the right upper connecting plate are U-shaped, and the upper ends are respectively fixed to the left support and the right support by welding, and second sample mounting holes are arranged on both the left upper connecting plate and the right upper connecting plate.

[0009] As a preference of the present utility model, a reinforcing plate is arranged at one end of the sector main frame near the U-shaped hanging part, and the reinforcing plate is arranged on the outer side wall of the inclined connecting rod for connecting the inclined connecting rod and the arc connecting rod into one body.

[0010] Advantages and beneficial effects of the present utility model:

[0011] (1) The test tooling provided by the present utility model is composed of a split frame (lower base, upper base) and a constant torque loading frame. Installing the backrest quick return mechanism on the tooling can meet the verification under the actual use conditions of the backrest quick return mechanism and can be quickly linked with the verification equipment.

[0012] (2) The test tooling provided by the present utility model is simple to fix, convenient to install, and can be reused (the lower base and the upper base are of a split structure, and the strength test will not damage the test tooling), greatly saving the development and verification cost; in addition, the tooling is designed with a constant torque loading position, and the constant torque loading condition required by the standard can be quickly and accurately realized. Description of the Drawings

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the following described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0014] Figure 1 It is a schematic diagram of the overall structure of the test tooling provided by the present utility model;

[0015] Figure 2 The side view of the test tooling provided for the present utility model;

[0016] Figure 3 The top view of the test tooling provided for the present utility model;

[0017] Reference numerals: lower base 1, upper base 2, constant torque loading frame 3, lower connecting plate 11, first sample mounting hole 111, left support 20a, right support 20b, upper connecting plate 21 (upper left connecting plate 21a, upper right connecting plate 21b), second sample mounting hole 211, cross beam 22, detonator mounting plate 23, fan-shaped main frame 30, hanging part 31, weight suspension rod 32, horizontal connecting rod 301, inclined connecting rod 302, arc connecting rod 303, reinforcing plate 304. Detailed implementation manners

[0018] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0019] In the description of the present application, it should be noted that the orientation or positional relationship indicated by terms such as "left" and "right" is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this application is usually placed during use. It is only for the convenience of describing the present application and simplifying the description, 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 should not be construed as a limitation to the present application.

[0020] In the description of the present application, it should also be noted that unless otherwise clearly specified and limited, the terms "set" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0021] Such as Figures 1 to 3As shown in the figure, this embodiment provides a test tooling for verifying the quick return mechanism of an automotive zero-gravity seat backrest, which includes a lower base 1, an upper base 2, and a constant torque loading frame 3. Among them, the lower base 1 and the upper base 2 are of a split structure. Lower connecting plates 11 are provided on both sides of the lower base 1, and first sample mounting holes 111 are provided on the lower connecting plates 11. Upper connecting plates 21 are provided at both lower ends of the upper base 2, and second sample mounting holes 211 are provided on the upper connecting plates 21. The lower mounting point of the backrest quick return mechanism is mounted at the first sample mounting hole 111 and connected to the lower base 1, and the upper mounting point is mounted at the second sample mounting hole 211 and connected to the upper base 2. A cross beam 22 is provided at the upper end of the upper base 2, and the center of the cross beam 22 is the test loading point. A constant torque loading frame 3 is mounted on the cross beam 22. The constant torque loading frame 3 is of a fan-shaped structure, with a hanging part 31 provided at one end and a counterweight suspension rod 32 provided at the other end. The hanging part 31 is mounted on the cross beam 22, and the counterweight suspension rod 32 is used for hanging counterweight blocks.

[0022] Further, as Figure 1 shown in the figure, in this embodiment, an initiator mounting plate 23 is further provided at a position near the upper end of the upper base 2, and the initiator of the backrest quick return mechanism is fixed on the initiator mounting plate 23.

[0023] In this embodiment, the constant torque loading frame 3 includes a fan-shaped main frame 30 and U-shaped hanging parts 31 and counterweight suspension rods 32 provided at both ends of the fan-shaped main frame 30. Among them, the fan-shaped main frame 30 includes a horizontal connecting rod 301, multiple inclined connecting rods 302, and an arc-shaped connecting rod 303, and the horizontal connecting rod 301 is connected to the arc-shaped connecting rod 303 through multiple inclined connecting rods 302.

[0024] Further, as Figure 1 shown in the figure, in this embodiment, the upper base 2 includes a left support 20a, a right support 20b, a cross beam 22 provided between the left support and the right support, and an initiator mounting plate 23 provided on the top surfaces of the left support and the right support for connecting the left and right supports. An upper left connecting plate 21a is provided on the outside of the left support 20a. An upper right connecting plate 21b is provided on the outside of the right support 20b. The cross-sections of the upper left connecting plate 21a and the upper right connecting plate 21b are U-shaped, and the upper ends are respectively fixed to the left support 20a and the right support 20b by welding. Second sample mounting holes 211 are provided on both the upper left connecting plate and the upper right connecting plate.

[0025] Further, as Figure 2 shown in the figure, in this embodiment, a reinforcing plate 304 is provided at one end of the fan-shaped main frame 30 near the U-shaped hanging part. The reinforcing plate 304 is provided on the outer side wall of the inclined connecting rod 302 and is used to connect the inclined connecting rod 302 and the arc-shaped connecting rod 303 into one body.

[0026] When strength tests need to be carried out, install the backrest quick return mechanism on the above-mentioned test fixture, pull the cross beam 22 forcefully or push the cross beam 22, and record the maximum pulling force or pushing force at which the backrest quick return mechanism is damaged; when torque tests need to be carried out, place counterweight blocks on the counterweight suspension rod 32 at the end of the constant torque loading rack 3 to conduct corresponding tests.

[0027] The above are the specific implementation manners of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of changes or substitutions, which should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. A test tooling for verifying the quick return mechanism of a zero-gravity seat back of an automobile, characterized in that, It includes a lower base, an upper base, and a constant torque loading frame. Among them, the lower base and the upper base are of a split structure. Lower connecting plates are provided on both sides of the lower base, and first specimen mounting holes are provided on the lower connecting plates. Upper connecting plates are provided on both sides of the lower end of the upper base, and second specimen mounting holes are provided on the upper connecting plates. The lower mounting point of the backrest quick return mechanism is installed at the first specimen mounting hole and connected to the lower base, and the upper mounting point is installed at the second specimen mounting hole and connected to the upper base. A cross beam is provided at the upper end of the upper base, and the center of the cross beam is the test loading point. A constant torque loading frame is installed on the cross beam. The constant torque loading frame is of a fan-shaped structure, with a hanging member provided at one end and a counterweight suspension rod provided at the other end. The hanging member is installed on the cross beam, and the counterweight suspension rod is used for hanging counterweight blocks.

2. The test tooling for verifying the rapid return mechanism of the zero-gravity seat back of an automobile according to claim 1, characterized in that, An igniter mounting plate is further provided at a position near the upper end of the upper base, and the igniter of the backrest quick return mechanism is fixed on the igniter mounting plate.

3. The test tooling for verifying a quick return mechanism of an automotive zero-gravity seat back according to claim 1, characterized in that, The constant torque loading frame includes a fan-shaped main frame and U-shaped hanging members and counterweight suspension rods provided at both ends of the fan-shaped main frame. Among them, the fan-shaped main frame includes a horizontal connecting rod, multiple inclined connecting rods, and an arc-shaped connecting rod, and the horizontal connecting rod and the arc-shaped connecting rod are connected by multiple inclined connecting rods.

4. The test tooling for verifying the quick return mechanism of the zero-gravity seat back of an automobile according to claim 2, characterized in that The upper base includes a left support, a right support, a cross beam provided between the left support and the right support, and an igniter mounting plate provided on the top surfaces of the left support and the right support for connecting the left and right supports. An upper left connecting plate is provided on the outside of the left support. An upper right connecting plate is provided on the outside of the right support. The cross sections of the upper left connecting plate and the upper right connecting plate are U-shaped, and the upper ends are respectively fixed to the left support and the right support by welding. Second specimen mounting holes are provided on both the upper left connecting plate and the upper right connecting plate.

5. The test tooling for verifying the quick return mechanism of the zero-gravity seat back of an automobile according to claim 3, characterized in that, A reinforcing plate is provided at one end of the fan-shaped main frame near the U-shaped hanging member. The reinforcing plate is provided on the outer side wall of the inclined connecting rod and is used for connecting the inclined connecting rod and the arc-shaped connecting rod into one body.

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