Limiting ring integrated forming carriage lock rod

Abstract

The utility model discloses a limit ring integral forming carriage lock rod, including the rod body, the lock rod head of fixedly arranged at the both ends of rod body and the limit ring of symmetrical setting on the rod body, limit ring is integrally connected with the rod body, the bottom of limit ring is detachably provided with low resistance lining ring, low resistance lining ring includes two petal body, one end of petal body is provided with the insert strip, and the other end is provided with the insert hole corresponding with insert strip, be provided with a plurality of dovetail piece on the insert strip, be provided with the dovetail groove corresponding with dovetail piece one to one in the insert hole, limit ring integral forming in the utility model discloses on the lock rod, and the overall strength is higher, and the processing speed is faster, in addition, the application of low resistance lining ring makes the friction between limit ring and hoop smaller, is favorable to the protection of limit ring and hoop, makes the tail door opening more smooth, and will not produce friction noise.

Description

Technical Field

[0001] This utility model relates to the field of carriage locks, specifically to a carriage lock rod with an integrally formed limiting ring. Background Technology

[0002] The locking of container and truck rear doors is achieved through a lock head seat, lock bar, handle, and handle lugs. The lock head seat is fixed to the truck body, the lock bar is rotatably mounted on the rear door, the handle is connected to the lock bar, and the handle lugs are fixed to the rear door. Both ends of the lock bar have lock bar heads that mate with the lock head seat. Rotating the lock bar engages and unlocks the lock bar heads with the lock head seat, allowing the rear door to be locked or opened. Currently, the truck body lock bar is fixed to the rear door via clamps, and the lock bar can rotate within the clamps. The upper edge of the clamp abuts against the lower edge of the limiting ring on the locking rod to support the locking rod. In actual production and testing, it was found that the limiting rings on the existing car body locking rods are fixed to the locking rod by subsequent welding, which has limited overall strength. After long-term use, the limiting rings are prone to falling off, which will prevent the locking rod from working properly. In addition, the existing limiting rings have a hard contact with the clamp, which will not only aggravate the wear of the clamp and the limiting ring, but also make it difficult to rotate the locking rod and produce a harsh noise. There is a lot of room for improvement. Utility Model Content

[0003] In view of the problems existing in the background art, the purpose of this utility model is to provide a limit ring integrally formed car body locking rod, which effectively solves the problems existing in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A one-piece molded car body locking rod with a limiting ring includes a rod body, locking rod heads fixed at both ends of the rod body, and limiting rings symmetrically arranged on the rod body. The limiting rings are integrally connected to the rod body. A low-resistance liner is detachably provided on the bottom surface of the limiting ring. The low-resistance liner includes two petals. One end of each petal is provided with an insert strip, and the other end is provided with a corresponding insertion hole. The insert strip is provided with multiple dovetail blocks, and the insertion hole is provided with dovetail grooves corresponding to the dovetail blocks one by one.

[0006] Furthermore, a ring groove is coaxially provided on the bottom surface of the limiting ring, and a ring edge that mates with the ring groove is provided on the low-resistance bushing.

[0007] Furthermore, one end of the valve body is provided with two inserts, and the other end is provided with two insertion holes corresponding to the inserts.

[0008] Furthermore, the low-resistivity bushing is made of polytetrafluoroethylene.

[0009] This utility model has the following beneficial technical effects:

[0010] In this invention, the limiting ring is integrally formed on the locking rod, resulting in higher overall strength and faster processing speed. In addition, the application of the low-resistance bushing reduces the friction between the limiting ring and the clamp, which is beneficial for the protection of the limiting ring and the clamp, making the tailgate opening smoother and without friction noise. This application has a novel design, is easy to use, and is suitable for widespread application. Attached Figure Description

[0011] Figure 1 This is a front view of an embodiment of the present utility model;

[0012] Figure 2 This is a front view of the assembly structure of the present invention and the clamp;

[0013] Figure 3 This is a front view of the assembly structure of the low-resistivity bushing ring and the limiting ring in an embodiment of this utility model.

[0014] Figure 4 This is a top view of the two lobes of the low-resistivity bushing in an embodiment of the present invention;

[0015] Figure 5 This is a schematic diagram of the assembly structure of the insert and the socket in an embodiment of this utility model. Detailed Implementation

[0016] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0017] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," and "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and 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, be constructed or operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, it 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0018] like Figure 1-5As shown in the figure, the one-piece molded limit ring car lock rod of this embodiment includes a rod body 1, lock rod heads 2 fixed at both ends of the rod body 1, and two limit rings 3 symmetrically arranged on the rod body 1. The rod body 1 is also connected to a mounting ear 4 for hinged lock handle. The rod body, lock rod heads and mounting ear 4 are all made of metal. The lock rod heads 2 are welded to both ends of the rod body 1. The limit rings 3 are formed on the circumference of the rod body 1 by extrusion in one piece, resulting in higher overall strength and faster processing speed.

[0019] A low-resistance bushing 5 is detachably mounted on the bottom surface of the limiting ring 3. Specifically, an annular groove 6 is coaxially mounted on the bottom surface of the limiting ring 3, and an annular edge 7 that mates with the annular groove 6 is mounted on the low-resistance bushing 5. The mating of the annular edge 7 and the annular groove 6 ensures the coaxiality of the low-resistance bushing 5 and the limiting ring 3, while not affecting the disassembly and replacement of the low-resistance bushing 5. The low-resistance bushing 5 is made of polytetrafluoroethylene (PTFE). PTFE has low surface energy and a very low coefficient of friction, making the rotation of the rod 1 smoother. The low-resistance bushing 5 includes two semi-circular annular petals 8, and the aforementioned annular edge 7 is divided into two parts and coaxially mounted on the two petals 8. One end is provided with two inserts 9 and the other end is provided with two sockets 10 corresponding to the inserts 9. Multiple dovetail blocks 11 are provided on the inserts 9 and dovetail grooves 12 corresponding to the dovetail blocks 11 are provided in the sockets 10. After the inserts 9 are inserted into the sockets 10, the dovetail blocks 11 enter the dovetail grooves 12, which can prevent the two petals 8 from easily disengaging. In actual operation, due to the weight of the rod 1, the top surface of the limiting ring 3 and the clamp 13 will clamp the low-resistance bushing 5 to prevent the sockets 10 from deforming and expanding, thereby more effectively preventing the inserts 9 from accidentally coming out of the sockets 10 and ensuring the integrity of the overall structure of the low-resistance bushing 5.

[0020] When installing the low-resistance bushing 5, first lift the rod body 1 upwards so that the bottom surface of the limiting ring is away from the top surface of the clamp 13. Then, insert the two petals 8 together onto the rod body 1 between the limiting ring 3 and the clamp 13. Lower the rod body 1, and the ring edge 7 on the low-resistance bushing 5 enters the ring groove 6 on the limiting ring 3. The limiting ring 3 and the clamp 13 together clamp the low-resistance bushing 5. The application of the low-resistance bushing 5 reduces the friction between the limiting ring 3 and the clamp 13, which is beneficial to the protection of the limiting ring 3 and the clamp 13, making the tailgate opening smoother and without generating friction noise.

[0021] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A one-piece molded car body locking rod with limiting rings, comprising a rod body, locking rod heads fixed at both ends of the rod body, and limiting rings symmetrically arranged on the rod body, characterized in that, The limiting ring is integrally connected to the rod body. A low-resistance liner is detachably provided on the bottom surface of the limiting ring. The low-resistance liner includes two petals. One end of the petal is provided with an insert bar, and the other end is provided with a hole corresponding to the insert bar. Multiple dovetail blocks are provided on the insert bar, and dovetail grooves corresponding to the dovetail blocks are provided in the hole.

2. The one-piece molded limit ring car lock rod according to claim 1, characterized in that, The bottom surface of the limiting ring is coaxially provided with an annular groove, and the low-resistance bushing is provided with an annular edge that mates with the annular groove.

3. The one-piece molded limit ring car lock rod according to claim 1, characterized in that, One end of the valve body is provided with two inserts, and the other end is provided with two insertion holes corresponding to the inserts.

4. The one-piece molded limit ring car body lock rod according to claim 1, characterized in that, The low-resistivity bushing is made of polytetrafluoroethylene.

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