A carriage connection

The carriage connector with insert cylinder and limiting block structure solves the problems of inconvenient disassembly and large space occupation caused by welding manufacturing, and realizes rapid assembly and disassembly to meet the needs of carriages of different sizes.

CN224297288UActive Publication Date: 2026-05-29ANHUI SHUNYANG AUTO PARTS MFG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANHUI SHUNYANG AUTO PARTS MFG CO LTD
Filing Date
2025-08-20
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

The existing freight car bodies are manufactured by welding, which makes disassembly inconvenient, production speed slow, space-consuming and has low adaptability.

Method used

The system employs an insertion tube and a limiting block structure. Through the cooperation of the insertion frame and the limiting block, the car body frame can be quickly assembled and disassembled. The sheet metal is fixed with bolts, avoiding welding.

Benefits of technology

It enables rapid assembly and disassembly of the carriage frame, is suitable for carriages of different sizes, is easy to operate, and improves production efficiency and space utilization.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224297288U_ABST
    Figure CN224297288U_ABST
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Abstract

The utility model discloses a kind of carriage connecting pieces, it is related to automobile parts technical field, including connecting seat, connecting seat is fixed by three mutually perpendicular insertion cylinder, insertion cylinder is equipped with carriage skeleton, carriage skeleton both ends are fixedly provided with insertion shelf, insertion shelf is inserted in insertion cylinder, the section shape of insertion cylinder and carriage skeleton is same, limit seat is fixedly arranged on the wall of connecting seat right-angle included angle side, two symmetrical spring cavities are equipped in limit seat, spring column is slidably arranged in spring cavity, two spring column top end is connected by being fixedly connected through pull strip and is penetrated out limit seat upside, limit block is fixedly arranged below spring column, limit block is penetrated out insertion cylinder of bottom, limit hole is provided on the side of limit block towards insertion shelf, limit block is equipped with inclined sliding surface. The utility model is simple in structure, is convenient for the assembly connection of carriage frame, is applicable to carriage frame of different sizes, convenient to operate, strong practicality, is suitable for promotion.
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Description

Technical Field

[0001] This utility model belongs to the field of automotive parts technology, specifically relating to a vehicle body connector. Background Technology

[0002] Currently, most existing truck bodies are manufactured using welding. This involves welding the frame of the truck body, then covering the frame with sheet metal using screws. This method results in a frame that is difficult to disassemble, slow production speed, large space requirements during transportation, and low adaptability to different truck body sizes. Utility Model Content

[0003] The purpose of this utility model is to provide a carriage connector with a simple structure, which facilitates the assembly and connection of carriage frames. It is applicable to carriage frames of different sizes, easy to operate, highly practical, and suitable for widespread application.

[0004] This utility model provides the following technical solution: a car body connector, including a connecting seat, the connecting seat being fixedly composed of three mutually perpendicular insertion cylinders, a car body frame being provided at the insertion cylinder, insertion brackets being fixed at both ends of the car body frame, the insertion brackets being inserted into the insertion cylinders, and the insertion cylinders having the same cross-sectional shape as the car body frame.

[0005] The insertion cylinder is fixedly provided with a limiting seat on the wall of the right angle side of the connecting seat. The limiting seat has two symmetrical spring cavities. A spring column is slidably provided in the spring cavity. A support spring is sleeved on the spring column. The top ends of the two spring columns pass through the upper side of the limiting seat and are fixedly connected by a lifting strip. A limiting block is fixedly provided below the spring column.

[0006] The limiting block extends through the bottom insertion cylinder, the insertion frame has a through limiting hole on the side facing the limiting block, and the limiting block has an inclined sliding surface on the insertion side facing the insertion frame.

[0007] The insertion cylinder has an outer bolt hole on the side away from the limiting seat, the insertion frame has an inner bolt hole, the outer bolt hole and the inner bolt hole coincide when the limiting block is inserted into the limiting hole, and the car frame has bolt holes of the same type on the side of the outer bolt hole.

[0008] Preferably, the top of the insert holder is a tapered foot, and the tapered feet press against each other when the limiting block is inserted into the limiting hole.

[0009] Preferably, the limiting seat is fixedly provided with a washer at the through-hole of the spring column, and the lifting strip is placed on the washer.

[0010] Preferably, the sidewall of the limiting block is tightly fitted to its through insertion cylinder, and the sidewall of the limiting block is tightly fitted to the limiting hole.

[0011] The beneficial effects of this utility model are: simple structure, easy assembly and connection of the carriage frame, applicable to carriage frames of different sizes, convenient operation, and strong practicality, as detailed below:

[0012] (1) This utility model is provided with a connecting seat. The connecting seat is laid at the opposite corner of the carriage and is used to lay and connect the carriage frame. When docking, select a carriage frame of appropriate length according to the size of the carriage. Insert the insert frames on both sides of the carriage frame into the insert cylinder respectively. During the insertion process, the insert frame squeezes the inclined sliding surface of the limiting block in the insert cylinder and pushes the limiting block into the limiting seat. After the two limiting holes on the insert frame coincide with the position of the limiting block, the limiting block pops in, and the frame can be assembled without welding. When disassembling, pull the lifting bar to pull the two limiting blocks out at the same time, and the insert frame can be removed.

[0013] (2) The connecting seat of this utility model is on the same plane as the outer side of the car frame. After the limiting block and the insertion frame are combined, the inner bolt hole and the outer bolt hole coincide. The insertion frame on the connecting seat is pressed against each other. When the iron sheet of the car is covered on the car frame, the iron sheet can be covered on the outside of the frame. The bolts are driven into the bolt holes on the car frame and the inner bolt hole and the outer bolt hole coincide. This facilitates assembly and allows for secondary fixation of the car frame and the connecting seat. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is an overall schematic diagram of the present invention;

[0016] Figure 2 This is a cross-sectional view of the present invention;

[0017] Figure 3 This is an enlarged view of point A of this utility model;

[0018] The markings in the diagram are as follows: 1. Connecting seat; 2. Insertion cylinder; 3. Carriage frame; 4. Insertion bracket; 5. Limiting seat; 6. Lifting bar; 7. Spring column; 8. Limiting block; 9. Spring cavity; 10. Conical foot; 11. Inner bolt hole; 12. Outer bolt hole; 13. Washer ring; 14. Support spring; 15. Sloping surface; 16. Limiting hole. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0020] In the description of this utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom", etc., 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 utility model 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 utility model.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] The structural features of this utility model will now be described in detail with reference to the accompanying drawings.

[0023] See Figure 1 A carriage connector includes a connector 1, which is formed by three mutually perpendicular insertion cylinders 2. A carriage frame 3 is provided at the insertion cylinder 2. Insertion brackets 4 are fixed at both ends of the carriage frame 3. The insertion brackets 4 are inserted into the insertion cylinders 2 to form the installation frame of the carriage. The cross-sectional shape of the insertion cylinders 2 and the carriage frame 3 is the same, so that the carriage frame 3 forms a smooth surface after docking with the connector 1.

[0024] See Figure 1-3The insertion cylinder 2 is fixedly mounted on the wall of the connecting seat 1 at the right angle. The limiting seat 5 has two symmetrical spring cavities 9. Spring columns 7 are slidably mounted in the spring cavities 9. Support springs 14 are mounted on the spring columns 7. The tops of the two spring columns 7 pass through the upper side of the limiting seat 5 and are fixedly connected by the lifting strip 6. A limiting block 8 is fixedly mounted below the spring columns 7. The limiting block 8 passes through the bottom of the insertion cylinder 2. The support spring 14 presses against the limiting block 8 to keep it in the state of being pressed into the insertion cylinder 2. The insertion frame 4 has a through limiting hole 16 facing the limiting block 8. The limiting block 8 has an inclined sliding surface 15 facing the insertion side of the insertion frame 4. Pushing over the inclined sliding surface 15 causes the limiting block 8 to retract into the limiting seat 5. A washer 13 is fixedly mounted on the limiting seat 5 at the through point of the spring column 7. The lifting strip 6 is placed on the washer 13 to create a gap between the lifting strip 6 and the limiting seat 5, making it easy to fasten.

[0025] See Figure 1-3 The insertion cylinder 2 has an outer bolt hole 12 on the side away from the limiting seat 5, and the insertion frame 4 has an inner bolt hole 11. When the limiting block 8 is inserted into the limiting hole 16, the outer bolt hole 12 and the inner bolt hole 11 are aligned, so that the bolt holes can be aligned after the insertion frame 4 is inserted. The car frame 3 has a bolt hole of the same type on the side of the outer bolt hole 12. The sheet metal is fixed to the bolt hole with bolts. The top of the insertion frame 4 is a tapered foot 10. When the limiting block 8 is inserted into the limiting hole 16, the tapered feet 10 are pressed against each other. The side wall of the limiting block 8 is tightly fitted with the part that penetrates the insertion cylinder 2. The side wall of the limiting block 8 is tightly fitted with the limiting hole 16. When the bolts are not fixed, the connecting seat 1 and the car frame 3 can also be stably connected.

[0026] The carriage connector of this utility model has a simple structure, which facilitates the assembly and connection of carriage frames. It is suitable for carriage frames of different sizes, easy to operate, highly practical, and suitable for widespread application.

[0027] For specific usage, please refer to... Figure 1-3During the docking process, a suitable length of carriage frame 3 is selected based on the dimensions of the carriage. The insertion brackets 4 on both sides of the carriage frame 3 are inserted into the insertion cylinder 2. During the insertion process, the insertion brackets 4 press against the inclined sliding surface 15 of the limiting block 8 inside the insertion cylinder 2, pushing the limiting block 8 into the limiting seat 5. After the two limiting holes 16 on the insertion bracket 4 coincide with the positions of the limiting block 8, the limiting block 8 springs in, thus completing the assembly of the frame without welding. After the limiting block 8 and the insertion bracket 4 are combined... At this time, the inner bolt hole 11 and the outer bolt hole 12 coincide, and the insertion bracket 4 on the connecting seat 1 is pressed against each other. When the iron sheet of the carriage is covered on the carriage frame 3, the iron sheet can be covered on the outside of the frame. The bolts are driven into the bolt holes on the carriage frame 3 and the overlapping of the inner bolt hole 11 and the outer bolt hole 12. This facilitates assembly and can fix the carriage frame 3 and the connecting seat 1 for the second time. When disassembling, pulling the lifting bar 6 can simultaneously pull the two limit blocks 8 to pull them out and remove the insertion bracket 4.

[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A carriage connector, comprising a connector (1), characterized in that, The connecting seat (1) is fixedly composed of three mutually perpendicular insertion cylinders (2). The insertion cylinder (2) is equipped with a carriage frame (3). The two ends of the carriage frame (3) are fixed with insertion brackets (4). The insertion brackets (4) are inserted into the insertion cylinder (2). The insertion cylinder (2) and the carriage frame (3) have the same cross-sectional shape. The insertion cylinder (2) is fixedly provided with a limiting seat (5) on the wall of the connecting seat (1) at the right angle. The limiting seat (5) is provided with two symmetrical spring cavities (9). Spring columns (7) are slidably provided in the spring cavities (9). Support springs (14) are sleeved on the spring columns (7). The top ends of the two spring columns (7) pass through the upper side of the limiting seat (5) and are fixedly connected by a lifting strip (6). A limiting block (8) is fixedly provided below the spring columns (7). The limiting block (8) extends through the bottom insertion tube (2), and the insertion frame (4) has a through limiting hole (16) on the side facing the limiting block (8), and the limiting block (8) has an inclined sliding surface (15) on the insertion side facing the insertion frame (4). The insertion tube (2) has an outer bolt hole (12) on the side away from the limiting seat (5), the insertion frame (4) has an inner bolt hole (11), when the limiting block (8) is inserted into the limiting hole (16), the outer bolt hole (12) and the inner bolt hole (11) are in the same position, and the car frame (3) has a bolt hole of the same type on the side of the outer bolt hole (12).

2. The carriage connector according to claim 1, characterized in that, The top of the insertion bracket (4) is a tapered foot (10), and when the limiting block (8) is inserted into the limiting hole (16), the tapered feet (10) press against each other.

3. A carriage connector according to claim 1, characterized in that, The limiting seat (5) is fixedly provided with a washer (13) at the through end of the spring column (7), and the lifting strip (6) is placed on the washer (13).

4. A carriage connector according to claim 1, characterized in that, The side wall of the limiting block (8) is tightly fitted to the insertion cylinder (2), and the side wall of the limiting block (8) is tightly fitted to the limiting hole (16).