A connecting structure of an electrically driven pull rod

Abstract

The utility model relates to a kind of connecting structure of electric pull rod, including electric pull rod car head, and the rear connecting plate connected to the rear of electric pull rod car head, the electric pull rod car head includes car head body, and the rear of car head body is fixed, and the front connecting plate of butt joint with rear connecting plate, the front connecting hole position is opened on the front connecting plate, the rear connecting hole position matched with front connecting hole position is provided on the rear connecting plate, the front connecting plate and rear connecting plate form insertion cooperation between, and screw is rotated into after the alignment of front connecting hole position and rear connecting hole position;The connecting structure of electric pull rod solves the stability of electric pull rod in structural connection aspect, assembly simplicity and maintenance convenience in long-term use.

Description

Technical Field

[0001] This utility model relates to a connection structure for an electric pull rod. Background Technology

[0002] With the development of modern travel methods, electric trolley rods have been widely used due to their convenient transportation method. Electric trolley rods achieve automatic movement through a built-in electric drive system, thereby reducing the burden on users when carrying containers. The core components of an electric trolley rod include the front unit, the trolley rod, the drive system, and the connecting structure between the front unit and the container. However, in existing technology, the connecting structure of electric trolley rods has certain shortcomings, mainly in the following aspects:

[0003] In traditional electric linkage designs, the connection between the front body and the rear connecting plate is typically a simple method, such as welding or direct plugging. These connections may loosen or become damaged over time due to vibration, impact, or other external forces, especially when the electric drive system is used frequently, making the stability and reliability of the connection crucial. Therefore, the existing connection structure lacks stability, easily leading to loosening or damage at the electric linkage's connection points, affecting user experience and product lifespan.

[0004] Currently, some electric pull rods employ connection structures that require complex assembly processes, such as manual alignment or precision welding. This not only increases production costs and time but can also lead to errors during assembly, thus affecting the quality of the final product. Existing technologies lack simple assembly solutions in this regard and are relatively inefficient in large-scale production, making it difficult to guarantee consistency and production efficiency.

[0005] Most electric pull rods have relatively fixed connection structures in their design. If a component is damaged or needs to be replaced, it often requires complex disassembly, which may even affect the function of the entire case or require complete replacement. Existing connection designs typically do not consider ease of maintenance, meaning that when users encounter damage during use, they often have no choice but to replace the entire case, increasing usage costs and inconvenience. Utility Model Content

[0006] The purpose of this utility model is to provide a connection structure for electric pull rods that solves the problems of stability in structural connection, ease of assembly, and convenience of maintenance during long-term use.

[0007] The technical solution adopted by this utility model to solve its technical problem is:

[0008] An electric pull rod connection structure includes an electric pull rod head and a rear connecting plate connected to the rear of the electric pull rod head. The electric pull rod head includes a head body and a front connecting plate fixed to the rear of the head body and opposite to the rear connecting plate. The front connecting plate has a front connecting hole, and the rear connecting plate has a rear connecting hole that mates with the front connecting hole. The front connecting plate and the rear connecting plate form an insertion fit. After the front connecting hole and the rear connecting hole are aligned, a screw is screwed in.

[0009] Preferably, the rear connecting plate is provided with a socket, and the shape of the front connecting plate corresponds to the shape of the socket on the rear connecting plate, forming an interference fit after insertion.

[0010] Preferably, the screw has a groove, and a pivot hole is provided on the side of the screw corresponding to the groove, through which the groove can pass. A wrench is installed in the groove, and a pivot rod through which the wrench is inserted is inserted into the pivot hole.

[0011] Preferably, the width of the wrench handle matches the width of the slot, and the bottom of the wrench handle has a rounded transition, with the pivot rod connected to the bottom of the wrench handle.

[0012] Preferably, the front connecting hole is located on the top surface of the front connecting plate, and the rear connecting hole is located on the top surface of the rear connecting plate.

[0013] Preferably, the front connecting hole is located on the side of the front connecting plate, and the rear connecting hole is located on the side of the rear connecting plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] By employing an insert fit between the front and rear connecting plates and securing the connection with screws, loosening, detachment, or deformation due to prolonged use or external forces can be effectively prevented. This design, through precisely aligned front and rear connecting holes and screw fixation, ensures the stability of the connection, thereby improving overall safety. The insert fit between the front and rear connecting plates simplifies and speeds up the assembly process. The precise design of the front and rear connecting holes and the easy screw insertion avoids complex welding or other delicate connection processes, improving assembly line efficiency while reducing human error and labor costs during assembly.

[0016] This structure uses screw fixing, allowing users or maintenance personnel to easily disassemble and replace the electric pull rod head or other damaged parts. This makes it convenient to repair or replace the electric pull rod during use, reducing the cost and hassle of replacing the entire casing due to component damage, and improving the product's durability and maintainability. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a connection structure for an electric pull rod.

[0018] Figure 2 A schematic diagram of the electric tie rod head structure, which is a connection structure for an electric tie rod.

[0019] Figure 3 A schematic diagram of the rear connecting plate structure of a connecting structure for an electric pull rod;

[0020] Figure 4 This is a schematic diagram of another rear connecting plate structure for a type of electric pull rod connection structure. Detailed Implementation

[0021] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of this utility model will become clearer from the following description and claims. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0023] Example

[0024] See Figure 1-3 As shown, a connection structure for an electric pull rod includes an electric pull rod head 1 and a rear connecting plate 2 connected to the rear of the electric pull rod head 1. The electric pull rod head 1 includes a head body 11 and a front connecting plate 12 fixed to the rear of the head body 11 and connected to the rear connecting plate 2. The front connecting plate 12 has a front connecting hole 121, and the rear connecting plate 2 has a rear connecting hole 21 that mates with the front connecting hole 121. The front connecting plate 12 and the rear connecting plate 2 form an insertion fit. After the front connecting hole 121 and the rear connecting hole 21 are aligned, a screw 3 is screwed in.

[0025] By employing an insert fit between the front connecting plate 12 and the rear connecting plate 2, and securing the connecting holes with screws 3, the tightness and stability of the connection are ensured. This design effectively prevents loosening or detachment caused by external impacts or vibrations generated during long-term use, thus improving the safety and reliability of the electric pull rod during use.

[0026] The design of this connection structure, through insertion and screw fixing, reduces the complex welding or bonding processes in traditional electric pull rod connections, making the assembly process simpler and more efficient. Using screws not only saves production time but also reduces operational difficulty and improves production efficiency, especially in large-scale production, where it better ensures assembly quality and consistency.

[0027] Unlike traditional welded or non-removable connections, this design allows for easier disassembly and reassembly of the electric pull rod when maintenance or parts replacement is needed. Users or maintenance personnel can easily replace or repair damaged parts simply by unscrewing screw 3, thereby extending the lifespan of the enclosure and reducing maintenance costs.

[0028] The rear connecting plate 2 is provided with a socket 22, and the shape of the front connecting plate 12 corresponds to the shape of the socket 22 on the rear connecting plate 2, forming an interference fit after insertion; the screw 3 is provided with a strip groove 31, and the side of the screw 3 corresponding to the strip groove 31 is provided with a pivot hole 32 that can pass through the strip groove 31, a wrench lever 33 is installed in the strip groove 31, and a pivot rod 34 that can pass through the wrench lever 33 is inserted into the pivot hole 32.

[0029] The width of the wrench lever 33 matches the width of the strip groove 31, and the bottom of the wrench lever 33 is rounded. The pivot rod 34 is connected to the bottom of the wrench lever 33. The front connecting hole 121 is located on the top surface of the front connecting plate 12, and the rear connecting hole 21 is located on the top surface of the rear connecting plate 2.

[0030] The width of the wrench handle 33 matches the width of the slot 31, ensuring a precise fit between the wrench handle 33 and the slot, thus making operation more stable. The rounded transition design avoids sharp edges and reduces frictional resistance, making the wrench handle 33 rotate more smoothly and improving the user experience. Furthermore, the precise fit avoids operational difficulties caused by looseness or mismatch, ensuring efficient and accurate disassembly and assembly processes.

[0031] The bottom of the wrench handle 33 features a rounded transition design, which effectively reduces stress concentration and avoids material fatigue or damage caused by abrupt angle changes or stress concentration. This transition design allows the wrench handle 33 to evenly distribute external forces, improving the overall structural strength and durability, thereby extending the service life of the wrench handle 33.

[0032] By positioning the front connecting hole 121 and the rear connecting hole 21 on the top surfaces of the front connecting plate 12 and the rear connecting plate 2, respectively, the force distribution on the connecting holes becomes more even, ensuring the stability of the screw 3 connection. This design optimizes the stress points of the connection structure, avoiding potential bending or loosening issues, and making the entire electric pull rod connection more stable. The top surface design also facilitates installation and disassembly, enhances the fit and stability between the connecting parts, and further improves the overall structural reliability.

[0033] Example 2

[0034] See Figure 4 As shown, the difference between this embodiment and embodiment 1 is only that the front connecting hole 121 is located on the side of the front connecting plate 12, and the rear connecting hole 21 is located on the side of the rear connecting plate 2.

[0035] Placing the connection holes on the side better distributes the stress, avoiding stress concentration that can occur with traditional front or top connections. This arrangement results in more even stress distribution at the connection points, thereby improving the overall structural strength and stability and reducing the risk of deformation or damage.

[0036] The side-mounted connection holes effectively reduce interference with other components, especially in designs with limited space or densely packed components. This arrangement makes the overall structure of the electric pull rod more compact, optimizes the use of internal space, enhances design flexibility, and is less susceptible to external environmental influences (such as friction interference from the ground or other objects).

[0037] The side-mounted design makes disassembly and maintenance more convenient. In some designs, front or top connection holes may be obstructed by other structures or external components, making disassembly difficult. Side-mounted connection holes, however, are generally easier to access and operate, especially in confined spaces, allowing for easier screw rotation and removal, thus improving maintenance and repair efficiency.

[0038] The above embodiments of this utility model are not intended to limit the scope of protection of this utility model. The implementation of this utility model is not limited thereto. All other modifications, substitutions or alterations made to the above structure of this utility model based on the above content of this utility model and in accordance with the common technical knowledge and conventional means in the field, without departing from the basic technical idea of ​​this utility model, shall fall within the scope of protection of this utility model.

Claims

1. A connection structure for an electric pull rod, characterized in that, The device includes an electric trolley head unit and a rear connecting plate connected to the rear of the electric trolley head unit. The electric trolley head unit includes a head unit body and a front connecting plate fixed to the rear of the head unit body and connected to the rear connecting plate. The front connecting plate has a front connecting hole, and the rear connecting plate has a rear connecting hole that mates with the front connecting hole. The front connecting plate and the rear connecting plate form an insertion fit. After the front connecting hole and the rear connecting hole are aligned, a screw is screwed in.

2. The connection structure of the electric pull rod according to claim 1, characterized in that, The rear connecting plate is provided with a socket, and the shape of the front connecting plate corresponds to the shape of the socket on the rear connecting plate, forming an interference fit after insertion.

3. The connection structure of the electric pull rod according to claim 2, characterized in that, The screw has a groove, and a pivot hole is provided on the side of the screw corresponding to the groove, through which the groove can pass. A wrench is installed in the groove, and a pivot rod through which the wrench is inserted is inserted into the pivot hole.

4. The connection structure of the electric pull rod according to claim 3, characterized in that, The width of the wrench handle matches the width of the slot, and the bottom of the wrench handle has a rounded transition. The pivot rod is connected to the bottom of the wrench handle.

5. The connection structure of the electric pull rod according to any one of claims 1-4, characterized in that, The front connecting hole is located on the top surface of the front connecting plate, and the rear connecting hole is located on the top surface of the rear connecting plate.

6. The connection structure of the electric pull rod according to any one of claims 1-4, characterized in that, The front connecting hole is located on the side of the front connecting plate, and the rear connecting hole is located on the side of the rear connecting plate.

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