Semitrailer spring pressing plate

Abstract

According to the technical scheme, the semi-trailer spring pressing plate is characterized in that the semi-trailer spring pressing plate comprises a main spring pressing plate, a plurality of auxiliary spring pressing plates are arranged on the bottom face of the main spring pressing plate, two connecting frames are arranged outside the main spring pressing plate, connecting plates and adjusting assemblies are arranged on the bottom faces of the connecting frames, and the adjusting assemblies are arranged on the bottom faces of the connecting frames. By arranging the tension spring, when the auxiliary spring pressing plate is additionally arranged below the main spring pressing plate, a worker pulls the connecting plate, at the moment, the tension spring is in an expanded state, after the auxiliary spring pressing plate and the main spring pressing plate are overlapped, the connecting plate is loosened, the tension spring pulls the connecting plate, and the connecting plate abuts against the auxiliary spring pressing plate; the pull-out degree of the connecting plate can be adjusted according to the number of the auxiliary spring pressing plates needing to be added, the use requirement of the semitrailer is met, and by arranging the fixing bolts, after the connecting frame is adjusted to the proper position, a worker screws the fixing bolts into the connecting frame, and the situation that the connecting frame slides on the main spring pressing plates, and the fastening effect is affected is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, in particular to a semi-trailer spring pressing plate. Background Technique

[0002] After the leaf spring is installed at the connection between the axle and the frame in the semi-trailer suspension, when the axle and the frame generate relative displacement, each spring leaf in the leaf spring will be deformed by force and tend to arch. When the axle and the frame are reset, the deformation of each spring leaf decreases until it returns to its original state.

[0003] According to the Chinese patent with the application number: CN202122316468.X, a variable cross-section leaf spring for a semi-trailer is disclosed, which includes a top spring leaf, a main spring leaf and a plurality of auxiliary spring leaves. The plurality of auxiliary spring leaves are fixedly connected to each other. Through holes are provided at the central positions of the top spring leaf, the main spring leaf and the plurality of auxiliary spring leaves. A first bolt is commonly inserted into the through holes of the top spring leaf, the main spring leaf and the plurality of auxiliary spring leaves. A first nut is threadedly connected to the first bolt. Two first fixing frames and two second fixing frames are commonly sleeved on the top spring leaf, the main spring leaf and the plurality of auxiliary spring leaves. Moving holes are provided on the first fixing frames and the second fixing frames. Springs are fixedly connected to the inner side walls of the first fixing frames and the second fixing frames. The utility model can buffer the forces generated by the deformation of various spring leaves, prevent the fixing frames from being easily worn due to excessive force, and avoid affecting the limiting effect on the spring leaves.

[0004] At present, there are still some deficiencies in a variable cross-section leaf spring for a semi-trailer. For example: according to the towing weight of the semi-trailer, the number of spring pressing plates needs to be adjusted. When adding auxiliary spring pressing plates to the main spring pressing plate, it is necessary to tightly fix the main spring pressing plate and the auxiliary spring pressing plate together, and fixing frames are required. However, the gaps of the fixing frames are fixed, resulting in the inability to install when too many auxiliary spring pressing plates need to be added. Content of the Utility Model

[0005] In view of the deficiencies of the prior art, the utility model provides a semi-trailer spring pressing plate, which solves the problem that when adding auxiliary spring pressing plates to the main spring pressing plate, it is necessary to tightly fix the main spring pressing plate and the auxiliary spring pressing plate together, and fixing frames are required. However, the gaps of the fixing frames are fixed, resulting in the inability to install when too many auxiliary spring pressing plates need to be added.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions:

[0007] A semi-trailer spring pressing plate includes: a main spring pressing plate, a plurality of auxiliary spring pressing plates are arranged on the bottom surface of the main spring pressing plate, two connecting frames are arranged outside the main spring pressing plate, a connecting plate is arranged on the bottom surface of the connecting frame, and an adjusting component is arranged on the bottom surface of the connecting frame for adjusting the distance between the connecting frame and the connecting plate.

[0008] By adopting the above technical solution, by setting the connecting plate, after the main spring pressing plate and the auxiliary spring pressing plate are stacked together, the two ends of the auxiliary spring pressing plate are fixed through the connecting plate under the connecting frame, preventing the inconsistent deformation of the main spring pressing plate and the auxiliary spring pressing plate during use and affecting the buffering effect.

[0009] Preferably, the adjusting component includes: two telescopic openings respectively opened on the bottom surfaces at both ends of the connecting frame, the connecting plate is movably sleeved with the telescopic openings, a limiting groove is opened inside the telescopic opening, a limiting plate is arranged inside the limiting groove, the limiting plate is fixedly connected with the connecting plate, two tension springs are fixedly installed on the top surface inside the limiting groove, and the tension springs are fixedly connected with the limiting plate.

[0010] By adopting the above technical solution, by setting the tension spring, when the staff adds the auxiliary spring pressing plate under the main spring pressing plate, the staff pulls the connecting plate, at this time the tension spring is in an expanded state, after the auxiliary spring pressing plate and the main spring pressing plate are stacked, the connecting plate is released, and the tension spring pulls the connecting plate to make the connecting plate abut against the auxiliary spring pressing plate, so that the pulling-out degree of the connecting plate can be adjusted according to the number of auxiliary spring pressing plates to be added, meeting the use requirements of the semi-trailer.

[0011] Preferably, a damping column is fixedly installed on the top surface inside the connecting plate.

[0012] By adopting the above technical solution, by setting the damping column, when the main spring pressing plate and the auxiliary spring pressing plate are compressed and deformed, the damping column on the connecting plate plays a buffering role, reducing the fracture of the main spring pressing plate and the auxiliary spring pressing plate.

[0013] Preferably, a fixing hole is opened on the top surface of the connecting frame, and a fixing bolt is threadedly connected inside the fixing hole.

[0014] By adopting the above technical solution, by setting the fixing bolt, after the connecting frame is adjusted to a suitable position, the staff screws in the fixing bolt to prevent the connecting frame from sliding on the main spring pressing plate and affecting the fastening effect.

[0015] Preferably, connecting holes are opened on the top surfaces of the main spring pressing plate and the auxiliary spring pressing plate, a screw rod is threadedly connected inside the connecting hole, and a fastening nut is threadedly connected to one end of the screw rod.

[0016] By adopting the above technical solution, by setting the screw rod, after the main spring pressing plate and the auxiliary spring pressing plate are stacked together, after screwing in the screw rod, screwing on the fastening nut at one end of the screw rod is beneficial to fastening the main spring pressing plate and the auxiliary spring pressing plate together.

[0017] Preferably, fixing pipes are fixedly installed at both ends of the main spring pressing plate.

[0018] By adopting the above technical solution, by setting the fixed pipe, when the main spring pressing plate is installed on the semi-trailer, a pin is inserted into the fixed pipe to connect with the semi-trailer, preventing the main spring pressing plate from detaching from the semi-trailer.

[0019] To sum up, the main beneficial effects of the present utility model are as follows:

[0020] By setting the tension spring, when the staff adds the auxiliary spring pressing plate under the main spring pressing plate, the staff pulls the connecting plate. At this time, the tension spring is in an expanded state. After the auxiliary spring pressing plate and the main spring pressing plate are stacked, the connecting plate is released, and the tension spring pulls the connecting plate to make the connecting plate abut against the auxiliary spring pressing plate. Thus, the pulling-out degree of the connecting plate can be adjusted according to the number of auxiliary spring pressing plates to be added, adapting to the usage requirements of the semi-trailer.

[0021] By setting the fixing bolt, after the connecting frame is adjusted to a suitable position, the staff screws in the fixing bolt to prevent the connecting frame from sliding on the main spring pressing plate and affecting the fastening effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0023] Figure 2 is a structural schematic diagram of the connecting hole of the present utility model;

[0024] Figure 3 is a structural schematic diagram of the connecting plate of the present utility model;

[0025] Figure 4 is a schematic sectional view of the connecting frame of the present utility model.

[0026] Reference numerals: 1, main spring pressing plate; 2, auxiliary spring pressing plate; 3, connecting frame; 4, connecting plate; 5, telescopic opening; 6, limiting groove; 7, limiting plate; 8, tension spring; 9, damping column; 10, fixing hole; 11, fixing bolt; 12, connecting hole; 13, screw rod; 14, fastening nut; 15, fixed pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0028] Reference Figure 1, A semi-trailer spring pressure plate, comprising: a main spring pressure plate 1, several auxiliary spring pressure plates 2 are arranged on the bottom surface of the main spring pressure plate 1, two connecting frames 3 are arranged outside the main spring pressure plate 1, a connecting plate 4 is arranged on the bottom surface of the connecting frame 3, and an adjusting component is arranged on the bottom surface of the connecting frame 3 for adjusting the distance between the connecting frame 3 and the connecting plate 4. By arranging the connecting plate 4, when the main spring pressure plate 1 and the auxiliary spring pressure plate 2 are stacked together, the two ends of the auxiliary spring pressure plate 2 are fixed through the connecting plate 4 under the connecting frame 3, preventing the inconsistent deformation of the main spring pressure plate 1 and the auxiliary spring pressure plate 2 during use and affecting the buffering effect.

[0029] Reference Figure 3 , Figure 4 , The adjusting component includes: two telescopic openings 5, which are respectively opened on the bottom surfaces of both ends of the connecting frame 3. The connecting plate 4 is movably sleeved with the telescopic openings 5. A limiting groove 6 is opened inside the telescopic opening 5, a limiting plate 7 is arranged inside the limiting groove 6, the limiting plate 7 is fixedly connected with the connecting plate 4, and two tension springs 8 are fixedly installed on the inner top surface of the limiting groove 6. The tension springs 8 are fixedly connected with the limiting plate 7. By arranging the tension springs 8, when the staff adds the auxiliary spring pressure plate 2 under the main spring pressure plate 1, the staff pulls the connecting plate 4. At this time, the tension springs 8 are in an expanded state. After the auxiliary spring pressure plate 2 and the main spring pressure plate 1 are stacked, the connecting plate 4 is released, and the tension springs 8 pull the connecting plate 4 to make the connecting plate 4 abut against the auxiliary spring pressure plate 2. Thus, the pulling-out degree of the connecting plate 4 can be adjusted according to the number of auxiliary spring pressure plates 2 to be added to meet the use requirements of the semi-trailer. A damping column 9 is fixedly installed on the inner top surface of the connecting plate 4. By arranging the damping column 9, when the main spring pressure plate 1 and the auxiliary spring pressure plate 2 are compressed and deformed, the damping column 9 on the connecting plate 4 plays a buffering role, reducing the fracture of the main spring pressure plate 1 and the auxiliary spring pressure plate 2. A fixing hole 10 is opened on the top surface of the connecting frame 3, and a fixing bolt 11 is threadedly connected inside the fixing hole 10. By arranging the fixing bolt 11, after the connecting frame 3 is adjusted to a suitable position, the staff screws in the fixing bolt 11 to prevent the connecting frame 3 from sliding on the main spring pressure plate 1 and affecting the fastening effect.

[0030] Reference Figure 1 , Figure 2 , Connecting holes 12 are opened on the top surfaces of both the main spring pressure plate 1 and the auxiliary spring pressure plate 2. A screw rod 13 is threadedly connected inside the connecting hole 12, and a fastening nut 14 is threadedly connected to one end of the screw rod 13. By arranging the screw rod 13, after the main spring pressure plate 1 and the auxiliary spring pressure plate 2 are stacked together, after screwing in the screw rod 13 and screwing on the fastening nut 14 at one end of the screw rod 13, it is beneficial to fasten the main spring pressure plate 1 and the auxiliary spring pressure plate 2 together. Fixed pipes 15 are fixedly installed at both ends of the main spring pressure plate 1. By arranging the fixed pipes 15, when the main spring pressure plate 1 is installed on the semi-trailer, a pin is inserted into the fixed pipe 15 to connect with the semi-trailer, preventing the main spring pressure plate 1 from separating from the semi-trailer.

[0031] Working principle: Please refer to Figures 1-4 As shown, when in use, according to the weight carried by the semi-trailer, the corresponding auxiliary spring pressing plate 2 is added to the main spring pressing plate 1. When the main spring pressing plate 1 and the auxiliary spring pressing plate 2 are installed, the staff pulls the connecting plate 4. At this time, the tension spring 8 is in an expanded state. After the auxiliary spring pressing plate 2 and the main spring pressing plate 1 are superimposed, the connecting plate 4 is released. The tension spring 8 pulls the connecting plate 4 to make the connecting plate 4 abut against the auxiliary spring pressing plate 2, and then the fixing bolt 11 is screwed in to fix the connecting frame 3. After the main spring pressing plate 1 and the auxiliary spring pressing plate 2 are stacked together, after the screw 13 is screwed in, the fastening nut 14 is screwed on one end of the screw 13, which is beneficial to fastening the main spring pressing plate 1 and the auxiliary spring pressing plate 2 together.

[0032] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A semi-trailer spring pressure plate, characterized in that: include: A main spring pressure plate (1), a plurality of auxiliary spring pressure plates (2) being arranged on the bottom surface of the main spring pressure plate (1), two connecting frames (3) being arranged outside the main spring pressure plate (1), and a connecting plate (4) being arranged on the bottom surface of the connecting frame (3); An adjustment component, wherein the adjustment component is arranged on the bottom surface of the connecting frame (3) and is used to adjust the distance between the connecting frame (3) and the connecting plate (4).

2. A semitrailer spring pressure plate according to claim 1, characterized in that: The adjustment component comprises: Two telescopic openings (5) are respectively provided on the bottom surfaces of both ends of the connecting frame (3); the connecting plate (4) and the telescopic opening (5) are movably sleeved together; a limiting groove (6) is provided inside the telescopic opening (5); a limiting plate (7) is provided inside the limiting groove (6); the limiting plate (7) is fixedly connected to the connecting plate (4); two tension springs (8) are fixedly installed on the inner top surface of the limiting groove (6); the tension springs (8) are fixedly connected to the limiting plate (7).

3. A semitrailer spring pressure plate according to claim 2, characterized in that: A damping column (9) is fixedly mounted on the inner top surface of the connecting plate (4).

4. The semitrailer spring pressure plate according to claim 2, characterized in that: A fixing hole (10) is provided on the top surface of the connecting frame (3), and a fixing bolt (11) is threadedly connected inside the fixing hole (10).

5. The semitrailer spring pressure plate according to claim 1, characterized in that: The top surfaces of the main spring pressure plate (1) and the auxiliary spring pressure plate (2) are both provided with connection holes (12), the interior of the connection hole (12) is threadedly connected to a screw rod (13), and one end of the screw rod (13) is threadedly connected to a fastening nut (14).

6. The semitrailer spring pressure plate according to claim 1, characterized in that: Fixed tubes (15) are fixedly mounted on both ends of the main spring pressure plate (1).

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