CN221273264U

CN221273264U - Blow molding hollow foldable spare tire cover plate

Info

Publication number: CN221273264U
Application number: CN202420092236.1U
Authority: CN
Inventors: 戴初发; 张艳辉; 毛小柯; 林丽君; 陈豪勇; 夏淑梅
Original assignee: NINGBO SUNLIGHT MOTOR PARTS CO Ltd
Current assignee: NINGBO SUNLIGHT MOTOR PARTS CO Ltd
Priority date: 2024-01-15
Filing date: 2024-01-15
Publication date: 2024-07-05
Anticipated expiration: 2034-01-15

Abstract

The utility model relates to a blow molding hollow foldable spare tire cover plate, which comprises a cover plate body, wherein reinforcing ribs are integrally formed in the cover plate body; the lower plate surface of the cover plate body is provided with supporting feet and a hinging seat fixedly connected with the cover plate body; two supporting feet are arranged one by one, and each supporting foot is provided with an M-shaped supporting section and long straight sections arranged at two ends of the supporting section; the circumference of the end part of the long straight section hinged with the hinging seat is provided with a protruding part which is arranged at an angle with the length direction of the long straight section; when the supporting leg rotates and expands relative to the cover plate body through the hinge seat, the edge of the notch of the hinge seat abuts against the protruding part to limit the rotating angle of the supporting leg. The blow molding hollow foldable spare tire cover plate designed by the utility model has the advantages that a hollow lightweight structure is obtained through blow molding, the integral rigidity of the inner reinforcing ribs is improved, the lightweight, high-strength, storage and multifunctional expansion are integrated, and the comprehensive effect is better.

Description

Blow molding hollow foldable spare tire cover plate

Technical Field

The utility model relates to the technical field of automobile accessories, in particular to a blow molding hollow foldable spare tire cover plate.

Background

In the prior art, various passenger automobiles are generally provided with a spare tire storage compartment in a luggage compartment of the vehicle for conveniently storing spare tire. Articles such as spare tires, tool boxes and the like can be placed in the spare tire cabin, and a trunk carpet is paved above the spare tire cabin to cover and isolate the spare tire cabin, and meanwhile the bearing function of the articles carried by the trunk cabin is exerted.

The traditional car trunk carpet mainly plays roles of car body decoration, sound insulation, noise reduction, bearing and the like. However, with the change of consumer demand, more and more owners use luggage cabins for travel or outdoor activities, and the luggage carpets are required to have stronger bearing capacity and durability. At the same time, it is also desirable that the trunk carpet perform more functions.

In response to the above-mentioned user needs, existing trunk carpets still have shortcomings in terms of compressive strength and versatility. The common fabrics or plastic carpets have limited bearing capacity and are not suitable for heavy-load scenes such as picnics and the like. The additional foldable desk board structure occupies the space of the luggage compartment and is inconvenient to store.

Disclosure of Invention

In order to solve the problems, the utility model provides a blow molding hollow foldable spare tire cover plate which integrates light weight, high strength, storage performance and multifunction.

In order to achieve the purpose, the blow molding hollow foldable spare tire cover plate designed by the utility model comprises a cover plate body, wherein the cover plate body is of a blow molding hollow structure, and reinforcing ribs are integrally formed in the cover plate body; the lower plate surface of the cover plate body is provided with supporting feet and a hinge seat fixedly connected with the cover plate body, and the hinge seat is of a groove structure with at least one side wall provided with an opening; the two support legs are provided with an M-shaped support section and long straight sections arranged at two ends of the support section, one end of each long straight section opposite to the support section extends into the hinging seat from the side wall opening of the hinging seat and is hinged with the hinging seat through a shaft pin, and the directions of the openings of the M-shaped support sections corresponding to the two support legs are opposite; the circumference of the end part of the long straight section hinged with the hinging seat is provided with a protruding part which is arranged at an angle with the length direction of the long straight section; when the supporting legs are unfolded through rotation of the hinge seat relative to the cover plate body, the edges of the notch of the hinge seat are propped against the protruding portions to limit the rotation angle of the supporting legs.

In order to enable the supporting leg to provide better supporting force when being unfolded, the protruding part comprises a tile-shaped base body and a blocky protruding body, wherein the base body is fixedly connected to the peripheral side of the long straight section through a screw, the protruding body protrudes from the outer surface of the base body and is provided with a pressing surface which is angled to the length direction of the long straight section, and the protruding body is pressed against the notch edge of the hinging seat through the pressing surface.

In order to avoid interference between moving parts, the other side wall of the hinged seat opposite to the upper opening of the hinged seat is of an arc-shaped structure, and one end of each long straight section hinged with the corresponding hinged seat is provided with an arc-shaped end matched with the arc-shaped structure.

In order to improve the stability of support, the M type supporting leg of every supporting legs comprises two straight sections and the bending section that is located between two straight sections, and the week side fixedly connected with slipmat of two straight sections, slipmat surface is provided with anti-skidding texture.

In order to optimize load distribution, an angle rod is fixedly connected to the smaller of the two supporting feet, one end of the angle rod is fixedly connected to the transition part of the straight section and the bending section, and the other end of the angle rod is fixedly connected with the long straight section.

For the convenience of storage and storage, integrated into one piece has the storage tank with supporting legs shape assorted on the lower face of apron body, the notch edge in storage tank is the chamfer structure.

In order to pick up, carry or remove spare tyre apron more easily, still include the handle assembly, integrated into one piece has the mounting hole with handle assembly looks adaptation on the apron body, the handle assembly includes bed plate and upper cover plate, the bed plate passes through the buckle knot to be adorned in one side of mounting hole, the upper cover plate passes through the buckle knot to be adorned in the opposite side of mounting hole and links firmly with the bed plate through the screw, and is equipped with the handle position of indent on the upper cover plate.

In order to manufacture the cover plate which is light and can meet the use requirements of different load scenes, the cover plate body is manufactured through a blow molding die, the blow molding die comprises a fixed die, a movable die and a plurality of reinforcing rib forming strips, and the fixed die and the movable die are matched to form a die cavity for manufacturing the cover plate body; the movable mould is provided with guide grooves matched with the forming strips of the reinforcing ribs, and the guide grooves are communicated with the mould cavity; the plurality of reinforcing rib forming strips are arranged at intervals along the width direction of the movable die and are configured to move relative to the fixed die in the guide groove under the drive of an external cylinder.

In order to simplify the manufacturing process, when the cover plate body is molded by a blow molding die, any one fabric of a composite carpet, PVC and TPO is preset in the fixed die, and a knife edge for cutting redundant fabrics on the periphery of the molded cover plate body is arranged on the periphery of the fixed die.

In order to effectively install and use the support leg for durability, a copper nut is preset in the fixed die, and the copper nut is pressed into the cover plate body through the die assembly cooperation of the fixed die and the movable die when the plastic for preparing the cover plate body is in a hot melting state.

The blow molding hollow foldable spare tire cover plate designed by the utility model obtains a hollow lightweight structure through blow molding, and the internal reinforcing ribs improve the overall rigidity and can meet the use requirements of different load scenes; the hinge seat structure realizes rapid retraction and conversion of the support legs, so that the storage space is greatly saved, the support legs are reasonable in structure and good in stability after being unfolded, and the heavy-load service environments such as picnic and the like can be met; the anti-slip treatment improves the use safety; compared with the existing product, the scheme integrates light weight, high strength, storage performance and multifunctional expansion, and has better comprehensive effect.

Drawings

FIG. 1 is a schematic view showing a support leg in an unfolded state in embodiment 1;

FIG. 2 is a schematic view of the structure of FIG. 1 from another perspective;

FIG. 3 is an exploded perspective view showing the connection of the support leg and the hinge base in embodiment 1;

Fig. 4 is a schematic structural view of the support leg in the storage state in embodiment 1;

FIG. 5 is a cross-sectional view taken at A-A of FIG. 4;

fig. 6 is a schematic sectional view of the support leg in the unfolded state in embodiment 1;

FIG. 7 is a cross-sectional view taken at B-B of FIG. 4;

Fig. 8 is an exploded perspective view of the blow mold in example 2.

Wherein: cover plate body 1, supporting leg 2, supporting section 21, straight section 211, bending section 212, long straight section 22, hinge seat 3, protruding portion 4, seat 41, protruding portion 42, pressing face 43, anti-slip pad 5, angle bar 6, storage groove 7, handle assembly 8, base plate 81, upper cover plate 82, blow mold 9, fixed mold 91, movable mold 92, reinforcing rib molding strip 93, guide groove 94, reinforcing rib 10, copper nut 11.

Detailed Description

The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present utility model only, and are not intended to limit the present utility model.

Example 1.

As shown in fig. 1 to 6, the blow molding hollow foldable spare tire cover plate described in this embodiment includes a cover plate body 1, wherein the cover plate body 1 is a blow molding hollow structure, and reinforcing ribs are integrally formed inside the cover plate body 1; the lower plate surface of the cover plate body 1 is provided with supporting feet 2 and a hinge seat 3 fixedly connected with the cover plate body 1, and the hinge seat 3 is of a groove structure with at least one side wall provided with an opening; two supporting legs 2 are arranged one by one, each supporting leg 2 is provided with an M-shaped supporting section 21 and long straight sections 22 arranged at two ends of the supporting section 21, one end of each long straight section 22 opposite to the supporting section 21 extends into the hinging seat 3 from the opening of the side wall of the hinging seat 3 and is hinged with the hinging seat 3 through a shaft pin, and the directions of the openings of the M-shaped supporting sections 21 corresponding to the two supporting legs 2 are opposite; the circumference side of the end part of the long straight section 22 hinged with the hinging seat 3 is provided with a protruding part 4 which is arranged at an angle with the length direction of the long straight section 22; when the supporting leg 2 rotates and expands relative to the cover plate body 1 through the hinge seat 3, the notch edge of the hinge seat 3 abuts against the protruding portion 4 to limit the rotation angle of the supporting leg 2. By utilizing the structure, the cover plate body 1 with a hollow design is obtained by adopting blow molding, so that the weight is greatly reduced compared with a solid structure; the rigidity and the intensity are further improved by the internal reinforcing ribs, so that the weight reduction is realized while the bearing capacity is ensured.

When the automobile trunk is unfolded and used, as shown in fig. 1 and 2, the two supporting feet 2 are positioned below the cover plate body 1 and are unfolded through the rotation of the hinge seat 3 relative to the cover plate body 1 until the protruding part 4 abuts against the edge of the hinge seat 3, so that the maximum rotation angle of the supporting feet 2 is limited, the supporting feet 2 stably support the cover plate body 1, and when the automobile trunk is stored, the supporting feet 2 are in a folding state relative to the cover plate body 1, and are convenient to store in the automobile trunk. The M-shaped design of the supporting section 21 of the supporting leg 2 ensures that the supporting leg 2 provides a plurality of supporting points for the cover plate body 1 in the unfolded state, the multi-point supporting structural design is particularly suitable for unfolding uneven soil in an outdoor camping scene, the torsional rigidity of the supporting section 21 is improved by the M-shaped design, and the bearing capacity of the cover plate body 1 can be effectively improved; in addition, as shown in fig. 4, two supporting feet 2 are arranged one by one, and the opening directions of the two supporting feet are opposite, so that the two supporting feet can be switched between an unfolding state and a storage state without mutual interference, and support guarantee is provided for heavy-load scenes such as picnics; in addition, the hinge seat 3 has a groove structure with at least one side wall provided with an opening, so that the end part of the supporting leg 2 is completely placed in the hinge seat 3 when the supporting leg is folded and folded relative to the cover plate body 1, thereby being practical and attractive, and avoiding the problem of excessive space occupation during storage.

Specifically, as shown in fig. 3, 5 and 6, in order to provide a better supporting force when the supporting leg 2 is unfolded, the protruding portion 4 includes a tile-shaped base 41 and a block-shaped protruding body 42, the base 41 is fixedly connected to the circumference side of the long straight section 22 by a screw, the protruding body 42 protrudes from the outer surface of the base 41 and has a pressing surface 43 angled to the length direction of the long straight section 22, and the protruding body 42 is pressed against the notch edge of the hinge base 3 by the pressing surface 43. In this structural design, the pressing surfaces 43 can support and cooperate with each other, so that the stability is increased, and the tile-shaped base 41 can be simply and conveniently fixedly connected with the long straight section 22 through screws to form a stable support, which is easy to manufacture and assemble, and can provide the required limiting and stabilizing functions. In addition, in this embodiment, a tongue structure (not shown) that is matched with each other may be further provided between the pressing surface 43 and the notch edge of the hinge base 3, so that the support leg 2 is less prone to loosening or shifting after being unfolded.

Example 2.

As shown in fig. 3 and 5, in the blow molding hollow foldable spare tire cover plate provided in this embodiment, in order to avoid interference between moving parts on the basis of embodiment 1, the other side wall of the hinge base 3 opposite to the upper opening thereof is in a cambered surface structure, and one end of each long straight section 22 hinged to the corresponding hinge base 3 has an arc end matched with the cambered surface structure. In this embodiment, the side wall of the hinge seat 3 is designed to be an arc surface, and is matched with the arc end of the long straight section 22, so that the possible interference problem between the long straight section 22 and the hinge seat 3 in the retraction process is avoided, and the unnecessary material use can be reduced by optimizing the shapes of the hinge seat 3 and the long straight section 22, and the overall light weight level of the spare tire cover plate is improved.

In some embodiments, as shown in fig. 2 and 3, in order to improve the stability of the support, the M-shaped support section 21 of each support leg 2 is composed of two straight sections 211 and a bending section 212 located between the two straight sections 211, the circumference sides of the two straight sections 211 are fixedly connected with the anti-slip pad 5, and the surface of the anti-slip pad 5 is provided with an anti-slip texture. In this embodiment, the support section 21 can provide more support area on the premise of multi-point support to form a more stable support foundation, which is helpful for supporting larger weight, and the anti-skid pad 5 and its texture form a multi-point anti-skid structure to avoid slipping under heavy load.

In some embodiments, as shown in fig. 1 and 2, in order to optimize the load distribution, the smaller of the two support legs 2 is fixedly connected with an angle rod 6, one end of the angle rod 6 is fixedly connected to the transition between the straight section 211 and the bending section 212, and the other end is fixedly connected to the long straight section 22. Specifically, when the cover plate body 1 is used for expanding a load, the smaller one of the two supporting legs 2 has lower structural strength than the larger supporting leg 2, and in the embodiment, the smaller one of the two supporting legs 2 is added with the angle rod 6, so that the load distribution can be improved, the two supporting legs 2 can more uniformly distribute the load when bearing the load, and the pressure concentration on a specific part is reduced, thereby improving the overall stability.

In some embodiments, as shown in fig. 2 and 4, for convenience of storage and convenience of storage, a storage groove 7 matching with the shape of the supporting leg 2 is integrally formed on the lower plate surface of the cover plate body 1, and a notch edge of the storage groove 7 is in a rounded structure. The storage groove 7 is formed, so that the supporting feet 2 can be completely placed and fixed in the storage groove 7, thereby being beneficial to orderly storing the spare tire cover plate (the cover plate body 1) and saving the storage space; the rounded design is not only helpful to reduce the existence of sharp edges and corners and reduce the risk of accidental collision or scratch during operation, but also is helpful to facilitate easier and smoother movement of the support legs 2 into or out of the storage slots 7.

In some embodiments, as shown in fig. 1, 2 and 7, in order to more easily pick up, carry or move the spare tire cover plate, the device further comprises a handle assembly 8, the cover plate body 1 is integrally formed with a mounting hole matched with the handle assembly 8, the handle assembly 8 comprises a base plate 81 and an upper cover plate 82, the base plate 81 is buckled on one side of the mounting hole through a buckle, the upper cover plate 82 is buckled on the other side of the mounting hole through a buckle and is fixedly connected with the base plate 81 through a screw, and the upper cover plate 82 is provided with a concave handle position. The handle assembly 9 improves the carrying convenience of the cover plate body 1, namely, a user can easily control and move the cover plate body 1 through the concave handle position without directly touching the larger surface or edge of the cover plate body 1, so that the use convenience is improved.

In some embodiments, as shown in fig. 8, in order to manufacture a lightweight cover plate capable of meeting the use requirements of different load scenes, the cover plate body 1 is manufactured by a blow mold 9, the blow mold 9 comprises a fixed mold 91, a movable mold 92 and a plurality of reinforcing rib forming strips 93, and the fixed mold 91 and the movable mold 92 are matched to form a mold cavity for manufacturing the cover plate body 1; the movable mould 92 is provided with guide grooves 94 matched with the reinforcing rib forming strips 93, and the guide grooves 94 are communicated with the mould cavity; the plurality of rib molding bars 93 are disposed at intervals along the width direction of the movable mold 92 and are configured to be movable relative to the fixed mold 91 in the guide groove 94 by an external cylinder.

In specific implementation, the fixed mold 91 and the movable mold 92 are closed, the mold is preheated to the blow molding temperature, then thermoplastic plastic raw materials are blown into the mold cavity, the blow molding needle 200 is used for blowing and expanding to form a blank matched with the size of the blow molding mold cavity, then the external cylinder 100 pushes the reinforcing rib forming strip 93 to move in the guide groove 94 to squeeze the blank, the external cylinder 100 (or the oil cylinder) is retracted, meanwhile, the blow needle 200 is started to blow the blank (the blowing direction is consistent with the length direction of the reinforcing rib forming strip 93), the reinforcing rib 10 is formed in the cover plate body 1 at last, after a certain time (or water in the mold) is passed, the movable mold 92 is opened, and the formed hollow cover plate body 1 is taken out. In summary, through the mold design of the movable reinforcing rib molding strip 93, the number and distribution of the inner reinforcing ribs can be flexibly controlled, and the cover plate products meeting different requirements can be manufactured.

In some embodiments, in order to simplify the manufacturing process, when the cover plate body 1 is molded by the blow molding mold 9, any one of the fabrics (not shown) of the composite carpet, PVC and TPO is preset in the fixed mold 91, and a knife edge for cutting the redundant fabric around the molded cover plate body 1 is provided on the periphery of the fixed mold 91. In this way, the preset fabric can be formed in the cover plate body 1 in a forming process, the thermal adhesiveness of the plastic in a thermal melting state is utilized to form the surface decorative layer (fabric) of the cover plate body 1 in one step, the complicated process of additionally pasting the fabric in the later period is avoided, and a knife edge (not shown) is arranged at the periphery of the fixed die 91, so that the redundant fabric at the periphery of the cover plate body 1 after the forming can be synchronously and accurately cut off in the compounding process of the fabric, and the manufacturing process is simplified.

In some embodiments, as shown in the drawings, for the support leg to be mounted and used durable, a copper nut 11 is preset in the fixed die 91, and the copper nut 11 is pressed into the cover body 1 through the die-closing fit of the fixed die 91 and the movable die 92 when the plastic for preparing the cover body 1 is in a hot molten state. In specific implementation, the copper nut 11 may be fixed on a positioning pin (not shown in the figure) in the cavity of the fixed die 91 in advance, and after the fixed die 91 and the movable die 92 are clamped, pressed and cooled, the copper nut 11 and the cover plate body 1 are fully combined, so as to provide a stable supporting base for the hinge seat 3, and improve the connection strength and stability.

The blow molding hollow foldable spare tire cover plate provided by the embodiment obtains a hollow lightweight structure through blow molding, and the internal reinforcing ribs improve the overall rigidity, so that the use requirements of different load scenes can be met; the hinge seat structure realizes rapid retraction and conversion of the support legs, so that the storage space is greatly saved, the support legs are reasonable in structure and good in stability after being unfolded, and the heavy-load service environments such as picnic and the like can be met; the anti-slip treatment improves the use safety; compared with the existing product, the scheme integrates light weight, high strength, storage performance and multifunctional expansion, and has better comprehensive effect.

In the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The blow molding hollow foldable spare tire cover plate comprises a cover plate body (1) and is characterized in that the cover plate body (1) is of a blow molding hollow structure, and reinforcing ribs are integrally formed in the cover plate body (1); the lower plate surface of the cover plate body (1) is provided with supporting feet (2) and a hinge seat (3) fixedly connected with the cover plate body (1), and the hinge seat (3) is of a groove structure with at least one side wall provided with an opening; the two support legs (2) are arranged in a large and small mode, each support leg (2) is provided with an M-shaped support section (21) and long straight sections (22) arranged at two ends of the support section (21), one end, opposite to the support section (21), of each long straight section (22) stretches into the hinging seat (3) from the opening of the side wall of the hinging seat (3) and is hinged with the hinging seat (3) through a shaft pin, and the directions of the openings of the M-shaped support sections (21) corresponding to the two support legs (2) are opposite; the circumference of the end part of the long straight section (22) hinged with the hinging seat (3) is provided with a protruding part (4) which is arranged at an angle with the length direction of the long straight section (22); when the supporting leg (2) rotates and expands relative to the cover plate body (1) through the hinge seat (3), the notch edge of the hinge seat (3) abuts against the protruding part (4) to limit the rotation angle of the supporting leg (2).

2. Blow-molded hollow foldable spare tire cover according to claim 1, characterized in that the protruding part (4) comprises a tile-shaped base body (41) and a block-shaped protruding body (42), the base body (41) is fixedly connected to the periphery side of the long straight section (22) through a screw, the protruding body (42) protrudes from the outer surface of the base body (41) and is provided with a pressing surface (43) which is angled to the length direction of the long straight section (22), and the protruding body (42) is pressed against the notch edge of the hinging seat (3) through the pressing surface (43) thereof.

3. A blow-molded hollow foldable spare tire cover according to claim 2, wherein the other side wall of the hinge base (3) opposite to the upper opening is of an arc structure, and one end of each long straight section (22) hinged with the corresponding hinge base (3) is provided with an arc end matched with the arc structure.

4. Blow-molded hollow foldable spare tire cover according to claim 1, characterized in that the M-shaped support section (21) of each support leg (2) consists of two straight sections (211) and a bending section (212) located between the two straight sections (211), the circumference sides of the two straight sections (211) are fixedly connected with anti-slip pads (5), and the surfaces of the anti-slip pads (5) are provided with anti-slip textures.

5. A blow molding hollow foldable spare tire cover according to claim 2, wherein an angle rod (6) is fixedly connected to the smaller of the two support legs (2), one end of the angle rod (6) is fixedly connected to the transition part of the straight section (211) and the bending section (212), and the other end of the angle rod is fixedly connected to the long straight section (22).

6. Blow molding hollow foldable spare tire cover according to any of the claims 1-5, characterized in that the lower plate surface of the cover body (1) is integrally formed with a storage groove (7) matched with the shape of the supporting leg (2), and the notch edge of the storage groove (7) is of a rounded corner structure.

7. The blow molding hollow foldable spare tire cover plate according to claim 6, further comprising a handle assembly (8), wherein the cover plate body (1) is integrally formed with a mounting hole matched with the handle assembly (8), the handle assembly (8) comprises a base plate (81) and an upper cover plate (82), the base plate (81) is buckled on one side of the mounting hole through a buckle, the upper cover plate (82) is buckled on the other side of the mounting hole through a buckle and is fixedly connected with the base plate (81) through a screw, and the upper cover plate (82) is provided with a concave handle position.

8. Blow-molded hollow foldable spare tire cover according to claim 7, characterized in that the cover body (1) is made by a blow-molding mold (9), the blow-molding mold (9) comprises a fixed mold (91), a movable mold (92) and a plurality of reinforcing rib molding strips (93), and the fixed mold (91) and the movable mold (92) are matched to form a mold cavity for making the cover body (1); the movable mould (92) is provided with guide grooves (94) matched with the reinforcing rib forming strips (93), and the guide grooves (94) are communicated with the mould cavity; the plurality of reinforcing rib forming strips (93) are arranged at intervals along the width direction of the movable die (92) and are configured to move relative to the fixed die (91) in the guide groove (94) under the drive of an external cylinder.

9. The blow molding hollow foldable spare tire cover plate according to claim 8, wherein when the cover plate body (1) is molded by a blow molding mold (9), any one of a composite carpet, PVC and TPO is preset in the fixed mold (91), and a knife edge for cutting redundant fabrics around the molded cover plate body (1) is arranged on the periphery of the fixed mold (91).

10. Blow molding hollow foldable spare tire cover according to claim 8, characterized in that a copper nut (11) is preset in the fixed mold (91), and when the plastic for preparing the cover body (1) is in a hot melting state, the copper nut (11) is pressed into the cover body (1) through the mold closing cooperation of the fixed mold (91) and the movable mold (92).