A reinforcing device for a soybean meal bin wall

Abstract

This invention discloses a soybean meal silo wall reinforcement device. The device includes a tie-down support member, a lower cover at the front of the tie-down support member, an upper cover above the lower cover, a parallel clamping frame inside the tie-down support member, and side support platforms on both sides of the parallel clamping frame. An even number of side wall grooves are formed on the inner wall of the parallel clamping frame. A rear through-beam is connected to the rear of the parallel clamping frame. A sliding rod is installed between the even number of side wall grooves, and a lower tension reinforcement member is fitted onto the sliding rod and the parallel clamping frame. This invention, by positioning the tie-down support members on both sides of the soybean meal silo wall, and with the lower tension reinforcement member inside the tie-down support member, anchor cables pass through both sides, forming a tension lock. This causes one pair of tie-down support members to shift inwards onto the other rear through-beam, creating a clamping effect on the soybean meal silo wall, thus providing effective external force support for the wall and eliminating safety hazards caused by wall cracking.

Description

Technical Field

[0001] This invention relates to the field of wall reinforcement equipment, specifically a soybean meal silo wall reinforcement device. Background Technology

[0002] Soybean meal silos are specialized storage facilities for storing soybean meal. Their design and management directly affect the quality of soybean meal, circulation efficiency, and enterprise costs. Common types of soybean meal storage include bagged palletized silos, small vertical silos, and bulk storage silos. Among them, bulk storage silos have the advantages of reducing packaging costs and speeding up circulation.

[0003] The existing technology has the following shortcomings: Currently, soybean meal is stored in a warehouse, but due to the characteristics of soybean meal, it is piled up in a trapezoidal or conical shape, which causes the soybean meal below to squeeze the walls, resulting in cracks in the concrete walls and posing certain safety hazards. Summary of the Invention

[0004] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the description and other accompanying drawings.

[0005] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a soybean meal silo wall reinforcement device. By installing tie supports on the left and right sides of the soybean meal silo, and cooperating with the downward tensioning reinforcements installed on the parallel clamping frame, the tie supports are mutually pulled together with the anchor cables, causing the alignment supports to shift and completing the clamping of the soybean meal silo wall. This covers the cracks in the soybean meal silo wall, increases the support force of the soybean meal silo wall through tension, and also eliminates the safety hazards caused by the wall cracks.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a soybean meal silo wall reinforcement device, comprising a tie-bracing member, a lower protective cover at the front of the tie-bracing member, an upper protective cover above the lower protective cover, a parallel clamping frame inside the tie-bracing member, and side support platforms on both sides of the parallel clamping frame; an even number of frame side wall sliding grooves are formed on the inner wall of the parallel clamping frame, a rear through-beam is connected to the rear of the parallel clamping frame, a sliding rod is installed between the even number of frame side wall sliding grooves, and a lower tensioning reinforcement member is fitted onto the sliding rod and the parallel clamping frame; a first locking groove is provided on the surface of the parallel clamping frame. The rear through-beam installed on the parallel clamping frame mainly provides for the locking displacement of the other parallel clamping frame, so that only one set of parallel clamping frames needs to have a rear through-beam installed at its rear.

[0007] A further improvement to the invention is that the lower tensioning reinforcement member is provided with a diagonal brace, the end of which is equipped with an even number of hinged fixing seats. A connecting shaft is installed between the inner walls of the top of the diagonal brace, and an even number of hydraulic lifting rods are provided on the connecting shaft. A rear support rod is connected to the outer wall of each diagonal brace, and both ends of each hydraulic lifting rod are connected to a hinged support platform. An inverted V-shaped anchor is fixed on the rear support rod. The hydraulic lifting rods on the connecting shaft are mainly used to form a triangular support with the rear support rods, providing support for the upper protective cover and keeping the tension support member stable.

[0008] A further improvement to the present invention is that the inverted V-shaped anchor frame is mounted on the upper surface of the parallel clamping frame, the hinged fixing seat is welded to the surface of the parallel clamping frame, the hydraulic lifting rod is connected to the connecting shaft through one of the hinged support platforms, the other hinged support platform is fixed to the rear support frame rod, the rear support frame rod is installed on the sliding rod, and the top end of the inclined support frame rod is connected to the upper protective cover. The inverted V-shaped anchor frame is mainly used for connecting anchor cables, so that while the positioning support member clamps the soybean meal silo wall, the anchor cable passes through both of them, and both ends are locked and pulled together with the inverted V-shaped anchor frame for fixation.

[0009] A further improvement to the invention is that the rear through-beam penetrates the original soybean meal silo wall, the rear surfaces of the side support platform and the upper cover are both attached to the surface of the soybean meal silo wall, the rear of the lower tension reinforcement member is directly opposite the soybean meal silo wall, and the lower cover is engaged with the tension support member and the upper cover. The lower cover is mainly used to cover the alignment support member and to seal it with the upper cover, thereby forming a conical structure to facilitate subsequent soybean meal supply and output.

[0010] A further improvement to the present invention includes a cover body inside the upper protective cover. One side wall of the cover body has a side-clamping alignment block. A locking anchor device is installed at the rear of the cover body. An inner support groove frame is formed in the center of the cover body, and a connecting seat is fixed within the inner support groove frame. A locking anchor hole fixing groove is fixed on the connecting seat. Another side wall of the cover body has a side-clamping alignment groove. A second cover flap is installed on the inner support groove frame. A second locking groove is formed on the surface of the cover body. The locking anchor hole fixing groove is mainly installed on the connecting seat, which penetrates through the cover body, so that after the anchor cable is connected and pulled, the top of the anchor cable's connecting and fixing head is fixed in the locking anchor hole fixing groove.

[0011] A further improvement to the present invention is that the anchoring device contains several anchor cylinders, each with a reinforcing insert groove on both sides. An even number of compensating support cylinders are connected to the rear of the anchoring device. The anchor cylinders are mainly for the anchor cables to pass through, ensuring that the cable remains horizontal during the tensioning process. This ensures that the upper protective cover always adheres to the wall and prevents the wall from continuously cracking under clamping.

[0012] In a further improvement to the present invention, the compensating support cylinder is used to compensate for the spacing of the anchor locking device, and its other end is fixed to the rear surface of the cover. The anchoring cylinder is used for the penetration and limiting of the anchor locking. The second covering flap is hinged to the cover and covers the inner support groove frame. The second slot is used to engage with the lower cover. The second covering flap is mainly used to cover the connecting seat, and after covering, it is supported by the inner support groove frame, so that the second covering flap is flush with the surface of the cover.

[0013] A further improvement to the present invention includes a cover body inside the lower cover, an even number of alignment blocks on the cover body, an adapter groove at the center of the top of the cover body, an inner support frame inside the cover body, a first covering flap mounted on the cover body, a side slot on one side of the cover body, and an alignment block on the other side of the cover body. The inner support frame has the same function as the inner support groove frame above it, serving to support the first covering flap, ensuring that the thickness of the cover is flush with the surface of the cover body.

[0014] In a further improvement to the present invention, the cover body engages with the second slot via one of the alignment blocks, and engages with the first slot via the other of the alignment blocks. The inner support frame extends through the rear of the cover body and is directly opposite the lower tension reinforcement. The inner surface of the cover body is attached to the side support platform. The top and bottom of the cover body are engaged with the first and second slots respectively via the provided first slots, while the cover body itself is attached to the side support platform, which provides support for it.

[0015] Compared with the prior art, the present invention has the following beneficial effects;

[0016] 1. The present invention uses alignment support members respectively set on both sides of the soybean meal silo wall. With the assistance of the lower tension reinforcement members in the alignment support members, the anchor cable passes through both sides to form a tension lock. This allows one pair of alignment support members to move inward on the other rear through I-beam, forming a clamping effect on the soybean meal silo wall, thereby providing effective external force support for the wall and eliminating the safety hazards caused by wall cracking.

[0017] 2. This invention connects the upper and lower covers sequentially to the alignment support, so that part of the structure fits against the wall of the soybean meal silo, forming a cone shape on the surface. This shifts the stress point outward, thereby reducing the secondary pressure on the soybean meal silo wall caused by the squeezing force at the lower end of the soybean meal when storing soybean meal. At the same time, the cone shape also improves the subsequent output of soybean meal. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a soybean meal silo wall reinforcement device according to the present invention;

[0019] Figure 2 This is a rear view structural diagram of a soybean meal silo wall reinforcement device according to the present invention;

[0020] Figure 3 This is a rear view schematic diagram of the parallel clamping frame in a soybean meal silo wall reinforcement device of the present invention;

[0021] Figure 4 This is a rear view schematic diagram of the lower tension reinforcement component in a soybean meal silo wall reinforcement device of the present invention;

[0022] Figure 5 for Figure 4 A partial upward view of the structure at point A in the middle;

[0023] Figure 6 This is a frontal three-dimensional structural diagram of the upper protective cover in a soybean meal silo wall reinforcement device of the present invention;

[0024] Figure 7 This is a rear view schematic diagram of the anchor locking device in a soybean meal silo wall reinforcement device of the present invention;

[0025] Figure 8 This is a three-dimensional structural diagram of the lower cover in a soybean meal silo wall reinforcement device of the present invention.

[0026] In the diagram: Pull-up support-1, Upper cover-2, Lower cover-3, Parallel clamping frame-11, Side support platform-12, Cover body-21, Side clamping block-22, Anchor locking device-23, Second cover flap-24, Connecting seat-25, Inner support groove frame-26, Anchor locking hole fixing groove-27, Side clamping groove-28, Second clamping groove-29, Cover body-31, Alignment block-32, Adaptor groove-33, Inner support frame-34, First cover flap-35, Side clamping groove-3 6. Alignment insert - 37. Frame side wall sliding groove - 111. Rear through I-beam - 112. Sliding rod - 113. Lower tension reinforcement - 114. First slot - 115. Anchoring cylinder - 231. Reinforcement insert groove - 232. Compensating support cylinder - 233. Hinge fixing seat - 1141. Diagonal brace rod - 1142. Connecting shaft - 1143. Rear support rod - 1144. Hydraulic lifting rod - 1145. Hinge support platform - 1146. Inverted V anchor - 1147. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0028] Furthermore, in the description of this invention, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and 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 this invention.

[0029] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral unit; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. However, specifying a direct connection indicates that the two main bodies are not connected through a transitional structure, but rather formed as a whole through a connecting structure. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0030] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0031] The present invention will be further described below with reference to the accompanying drawings:

[0032] Example 1: As shown in the attached document Figure 1 To be continued Figure 8 As shown:

[0033] This embodiment provides a soybean meal silo wall reinforcement device, including a tie support 1, a lower cover 3 in front of the tie support 1, an upper cover 2 above the lower cover 3, a parallel clamping frame 11 inside the tie support 1, and side support platforms 12 on both sides of the parallel clamping frame 11; a cover body 21 inside the upper cover 2, a side locking block 22 on one side wall of the cover body 21, a locking anchor device 23 installed at the rear of the cover body 21, an inner support groove frame 26 in the center of the cover body 21, a connecting seat 25 fixed in the inner support groove frame 26, a locking anchor hole fixing groove 27 fixed on the connecting seat 25, a side locking alignment groove 28 on the other side wall of the cover body 21, a second covering flap 24 installed on the inner support groove frame 26, and a second slot 29 on the surface of the cover body 21. The lower cover 3 contains a cover body 31, which has an even number of alignment blocks 32. An adapter groove 33 is located at the center of the top of the cover body 31. An inner support frame 34 is located inside the cover body 31. A first covering flap 35 is installed on the cover body 31. A side slot 36 is located on one side of the cover body 31, and an alignment block 37 is located on the other side. The inner wall of the parallel clamping frame 11 has an even number of frame sidewall sliding grooves 111. A rear through-beam 112 is connected to the rear of the parallel clamping frame 11. A sliding rod 113 is installed between the even number of frame sidewall sliding grooves 111. A downward tensioning reinforcement 114 is installed on the sliding rod 113 and the parallel clamping frame 11. A first slot 115 is located on the surface of the parallel clamping frame 11. The anchor locking device 23 contains several anchoring cylinders 231, and each anchoring cylinder 231 has a reinforcing insert groove 232 on both sides. An even number of compensating support cylinders 233 are connected to the rear of the anchor locking device 23. The lower tensioning reinforcement member 114 contains a diagonal bracing rod 1142, and an even number of hinged fixing seats 1141 are installed at the end of the diagonal bracing rod 1142. A connecting shaft 1143 is installed between the inner walls of the top of the diagonal bracing rod 1142, and an even number of hydraulic lifting rods 1145 are installed on the connecting shaft 1143. A rear support rod 1144 is connected to the outer wall of the diagonal bracing rod 1142. Both ends of the hydraulic lifting rod 1145 are connected to hinged support platforms 1146, and an inverted V-shaped anchor 1147 is fixed on the rear support rod 1144.

[0034] Furthermore, in actual use, the alignment support 1 is used in pairs as a set. During use, the alignment support 1 clamps the soybean meal silo wall on both sides, so that the two can reinforce the soybean meal silo wall by clamping it.

[0035] Furthermore, after the positioning support 1 reinforces the soybean meal silo wall, both sides of the soybean meal silo wall are conical. Thus, through the conical structure, the gravity of the soybean meal during storage can be shifted outward, avoiding continuous force on one side of the wall. Also, when the soybean meal is being output, the replacement soybean meal can slide down and enter the auger to complete the output.

[0036] Furthermore, the side support platform 12 is mainly welded and fixed to both sides of the parallel clamping frame 11, while the rear through-beam 112 is fixed to the rear of the parallel clamping frame 11. Only one parallel clamping frame 11 in a set of tie supports 1 needs to be installed with the rear through-beam 112.

[0037] Furthermore, the frame side wall groove 111 is formed on the inner wall of the parallel clamping frame 11 and is installed opposite to it, so that the slide rod 113 is set in the middle therein. In the process of adjustment, the slide rod 113 can slide on the frame side wall groove 111 to the top to form a top fixation.

[0038] Furthermore, both the anchoring device 23 and the lower tension reinforcement 114 need to be connected with the anchor cable during use. After the anchor cable passes through the soybean meal silo wall, it forms a tensile force in opposite directions, which attaches the tension support 1 to the surface of the soybean meal silo wall.

[0039] Furthermore, the side walls of the upper cover 2 and the lower cover 3 are provided with alignment grooves or alignment blocks. The purpose of the alignment grooves and alignment blocks is mainly to match and connect when the longitudinal length of the soybean meal silo wall is different, and the lower end of the soybean meal silo wall is fully covered by multiple alignment support members 1.

[0040] Furthermore, the purpose of the first covering flap 35 and the second covering flap 24 is to seal the cover 21 or the cover 31 to prevent soybean meal from leaking into the positioning support. At the same time, under the cover of the first covering flap 35 and the second covering flap 24, the cover can be opened when the soybean meal silo is empty to periodically check the anchor cable connection of the anchor hole fixing groove 27 or the inverted V anchor frame 1147.

[0041] Furthermore, the adapter groove 33 is mainly used to adapt the raised triangular shape on the second cover flap 24 to fit tightly with the lower cover 3 during the hinged swing process, so that it fits more naturally after being covered.

[0042] Furthermore, the hinged fixing seat 1141 is installed on the upper surface of the parallel clamping frame 11. It mainly assists the hinged fixing seat 1141 in hinged swinging during the lifting process of the hydraulic lifting rod 1145 at the rear, so that the rear support frame rod 1144 forms an angle and forms a stable triangular support frame.

[0043] Furthermore, the hydraulic lifting rod 1145 is lifted by hydraulic injection, thereby forming a triangular structure with the diagonal bracing rod 1142 and the rear support rod 1144, so that the diagonal bracing rod 1142 provides effective support for the upper protective cover 2 above.

[0044] Furthermore, the inverted V anchor 1147 is mainly used for the penetration of the anchor cable and to form relative tension, which drives the positioning support to form opposite displacement. Under the action of tension, one plane of the inverted V anchor 1147 will be fixed to the surface of the parallel frame 11, and the parallel frame 11 will provide support for it.

[0045] The specific working principle is as follows:

[0046] This invention involves installing two alignment support members 1 in a group on the left and right sides of the soybean meal silo wall. A rear through-beam 112, located behind the parallel frame 11 between the rear support platforms 12, passes through the soybean meal silo wall and connects to another alignment support member 1. After connection, a hydraulic lifting rod 1145 mounted on a sliding rod 113 lifts the frame, causing the diagonal brace 1142 to cooperate with the rear support rod 1144 to form a triangular support. The sliding rod 113 then slides synchronously on the top of the sliding groove 111 on the side wall of the frame for engagement. One surface of the inverted V-shaped anchor frame 1147 is fixed to the upper surface of the parallel frame 11. The upper cover 2 is then fixed to the top of the diagonal brace 1142. Finally, the lower anchor cable passes through the soybean meal silo wall and engages with the inverted V-shaped anchor frame 1147. The upper cover 2 is connected to the anchor hole fixing groove 27, which is also connected by anchor cables to form a tie and fix it, so that the tie support 1 forms a clamping clamp, thereby achieving clamping and reinforcement of the soybean meal silo wall. Finally, the alignment block 32 set on the cover 31 is used to engage the second slot 29 and the first slot 115 respectively, and the inner surface is attached to the surface of the side support platform 12, so that the alignment support 1 is covered with the cooperation of the upper cover 2. The upper cover 2 and the lower cover both have alignment blocks and alignment grooves on both sides. The alignment groove can be used as the lower cover and lower cover on another set of alignment support 1 for alignment and connection. Thus, multiple sets of alignment support 1 can be matched with different soybean meal silo depths to achieve full reinforcement and coverage of the wall.

[0047] It should be understood that the embodiments disclosed herein are not limited to the specific processing steps or materials disclosed herein, but should be extended to equivalent substitutions of such features as understood by those skilled in the art. It should also be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting.

[0048] The term "embodiment" in this specification means that a specific feature or characteristic described in connection with an embodiment is included in at least one embodiment of the invention. Therefore, phrases or "embodiments" appearing in various places throughout the specification do not necessarily refer to the same embodiment.

[0049] Furthermore, the described features or characteristics can be incorporated into one or more embodiments in any other suitable manner. In the above description, specific details, such as thickness, quantity, etc., are provided to provide a comprehensive understanding of embodiments of the invention. However, those skilled in the art will understand that the invention can be implemented without the aforementioned specific details or may be implemented using other methods, components, materials, etc.

Claims

1. A device for reinforcing the walls of a soybean meal silo, characterized in that, It includes a pull support member (1), a lower cover (3) is provided in front of the pull support member (1), an upper cover (2) is provided above the lower cover (3), a parallel clamping frame (11) is provided inside the pull support member (1), and a side support platform (12) is provided on both sides of the parallel clamping frame (11). The inner wall of the parallel clamping frame (11) is provided with an even number of frame side wall sliding grooves (111). A rear through I-beam (112) is connected to the rear of the parallel clamping frame (11). A sliding rod (113) is provided between the even number of frame side wall sliding grooves (111). A lower tensioning reinforcement (114) is installed on the sliding rod (113) and the parallel clamping frame (11). A first slot (115) is provided on the surface of the parallel clamping frame (11). The lower tension reinforcement member (114) is provided with a diagonal bracing rod (1142), and an even number of hinged fixing seats (1141) are installed at the end of the diagonal bracing rod (1142). A connecting shaft (1143) is installed between the inner walls of the top of the diagonal bracing rod (1142). An even number of hydraulic lifting rods (1145) are provided on the connecting shaft (1143). A rear support rod (1144) is connected to the outer wall of the diagonal bracing rod (1142). A hinged support platform (1146) is connected to both ends of the hydraulic lifting rod (1145). An inverted V anchor (1147) is fixed on the rear support rod (1144).

2. The soybean meal silo wall reinforcement device according to claim 1, characterized in that: The inverted V-shaped anchor frame (1147) is mounted on the upper surface of the parallel clamp frame (11), the hinged fixing seat (1141) is welded to the surface of the parallel clamp frame (11), the hydraulic lifting rod (1145) is connected to the connecting shaft (1143) through one of the hinged support platforms (1146), the other hinged support platform (1146) is fixed to the rear support frame rod (1144), the rear support frame rod (1144) is installed on the slide rod (113), and the top end of the inclined support frame rod (1142) is connected to the upper protective cover (2).

3. The soybean meal silo wall reinforcement device according to claim 1, characterized in that: The rear through-beam (112) is used to penetrate the original soybean meal silo wall. The rear surfaces of the side support platform (12) and the upper cover (2) are both attached to the surface of the soybean meal silo wall. The rear of the lower tension reinforcement member (114) is directly opposite the soybean meal silo wall. The lower cover (3) is engaged with the tension support member (1) and the upper cover (2).

4. The soybean meal silo wall reinforcement device according to claim 3, characterized in that: The upper cover (2) is provided with a cover body (21). A side-clamping block (22) is provided on one side wall of the cover body (21). A locking anchor device (23) is installed at the rear of the cover body (21). An inner support groove frame (26) is provided in the center of the cover body (21). A connecting seat (25) is fixed in the inner support groove frame (26). A locking anchor hole fixing groove (27) is fixed on the connecting seat (25). A side-clamping groove (28) is provided on the other side wall of the cover body (21). A second cover flap (24) is installed on the inner support groove frame (26). A second slot (29) is provided on the surface of the cover body (21).

5. The soybean meal silo wall reinforcement device according to claim 4, characterized in that: The anchor locking device (23) is provided with a number of anchor cylinders (231), and the anchor cylinders (231) are provided with reinforcing insert grooves (232) on both sides. An even number of compensating support cylinders (233) are connected to the rear of the anchor locking device (23).

6. The soybean meal silo wall reinforcement device according to claim 5, characterized in that: The compensating support cylinder (233) is used to compensate for the spacing of the anchor locking device (23), and the other end is fixed to the rear surface of the cover (21). The anchoring cylinder (231) is used for the penetration and limiting of the anchor locking. The second covering flap (24) is hinged to the cover (21) and covers the inner support groove frame (26). The second slot (29) is used to engage with the lower cover (3).

7. The soybean meal silo wall reinforcement device according to claim 6, characterized in that: The lower cover (3) is provided with a cover body (31), the cover body (31) is provided with an even number of alignment blocks (32), the top center of the cover body (31) is provided with an adapter groove (33), the cover body (31) is provided with an inner support frame (34), the cover body (31) is provided with a first covering flap (35), one side of the cover body (31) is provided with a side slot (36), and the other side of the cover body (31) is provided with an alignment insert (37).

8. The soybean meal silo wall reinforcement device according to claim 7, characterized in that: The cover (31) engages with the second slot (29) through one of the alignment blocks (32), and the cover (31) engages with the first slot (115) through the other alignment block (32). The inner support frame (34) passes through the rear of the cover (31) and is directly opposite the lower tension reinforcement (114). The inner surface of the cover (31) is attached to the side support platform (12).

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