Conveyor with rollers easy to replace
By designing a U-shaped opening and roller fixing plate on the scissor arm, the disassembly and installation process of the roller is simplified, solving the complexity problem in the disassembly and replacement process in the existing technology, and improving production efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUJIAN XINLIANGZUO AUTOMATION EQUIP CO LTD
- Filing Date
- 2025-05-20
- Publication Date
- 2026-04-21
AI Technical Summary
The disassembly and replacement process of existing roller conveyors is complicated, time-consuming and labor-intensive when they fail, which increases equipment downtime and maintenance costs, and also poses safety hazards.
The design of U-shaped openings and roller fixing plates on the scissor arms, secured with nuts, simplifies the disassembly and installation of the rollers and reduces the number of components that need to be removed.
It enables rapid disassembly and installation of the rollers, reducing maintenance time, lowering maintenance costs, improving production efficiency, and reducing safety risks.
Smart Images

Figure CN224146863U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cargo conveying technology, and in particular to a conveyor with easily replaceable rollers. Background Technology
[0002] In existing roller conveyors (such as Figure 3 As shown, the roller is connected to the scissor lift mechanism via connecting shafts at both ends. The connecting shafts are secured with nuts, thereby ensuring the stability and reliability of the roller during use.
[0003] However, this design makes disassembly and replacement quite complicated when the rollers fail. First, the scissor lift mechanism needs to be retracted, then the nut removed, and finally the scissor arms must be pried open to remove the rollers from the connection holes. Because the scissor arms are rigid structures, disassembly is very difficult, and workers often need to disassemble multiple scissor arms and roller structures to complete the replacement. This process is not only time-consuming and labor-intensive, but can also lead to prolonged equipment downtime and reduced production efficiency.
[0004] Furthermore, the disassembly process is cumbersome and requires specific tools, increasing the labor intensity and operational difficulty for workers. In actual production environments, this structural design limits the rapid replacement of rollers, increases maintenance costs, and enhances the complexity of equipment maintenance. Therefore, how to improve this design and enhance the efficiency of roller disassembly and replacement has become a crucial issue that urgently needs to be addressed in current roller conveyor systems. Utility Model Content
[0005] The purpose of this invention is to provide a conveyor with easily replaceable rollers, which can solve the problem of cumbersome roller disassembly operations mentioned in the background art.
[0006] This utility model is achieved through the following technical solution:
[0007] A conveyor with easily replaceable rollers, the main body of which is a roller conveyor, and a scissor mechanism is provided on the roller conveyor. The scissor mechanism is mainly formed by connecting several scissor arms, connecting rods and rollers.
[0008] The bottom and middle joints of the scissor arms are connected by a connecting rod, while the top joint is connected by a roller.
[0009] The roller is rotatably connected to the connecting shaft, and the two ends of the connecting shaft are provided with threaded structures; the connecting shaft passes through the scissor arm and the roller is fixed to the scissor arm by nuts;
[0010] The top of each scissor arm is provided with a U-shaped opening, and the connecting shafts at both ends of the roller can be inserted into the scissor arm through the U-shaped opening;
[0011] The scissor arm is also detachably connected to a roller fixing plate for fixing the roller; wherein, the bottom of the roller fixing plate is provided with a fixing member for connecting to the scissor arm, and the top of the roller fixing plate is provided with a connecting hole, which can be fitted onto the outer circumference of the connecting shafts at the front and rear ends of the roller, and the roller is fixed to the roller fixing plate by a nut.
[0012] Compared with previous technologies, the beneficial effects of this utility model are as follows:
[0013] 1. This utility model simplifies the disassembly process of the rollers and avoids cumbersome steps. Through the design of the roller fixing plate and the U-shaped opening on the scissor arm, workers can quickly and easily disassemble the rollers, greatly reducing maintenance time and improving the availability of the production line.
[0014] 2. This utility model reduces the number of components that need to be removed during the disassembly process. Workers only need to disassemble a small number of structures to complete the roller replacement, which significantly improves work efficiency, reduces equipment downtime, and lowers maintenance costs.
[0015] 3. It can reduce the risk of workers coming into contact with complex parts during disassembly, and reduce safety hazards caused by improper operation or negligence. Attached Figure Description
[0016] Figure 1 This is a partial structural diagram of the scissor lift mechanism;
[0017] Figure 2 A schematic diagram showing the connection between the roller fixing plate and the scissor arm;
[0018] Figure 3 This is a schematic diagram of the roller conveyor without the roller fixing plates installed.
[0019] Labeling: 1 Roller conveyor, 11 Scissor mechanism, 111 Scissor arm, 112 U-shaped opening, 2 Roller, 21 Connecting shaft, 22 Roller fixing plate, 221 Connecting hole, 222 Fixing component. Detailed Implementation
[0020] The present invention will now be described in detail with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the following description:
[0021] like Figures 1 to 2 As shown, a conveyor with easily replaceable rollers is mainly composed of a roller conveyor 1, and a scissor mechanism 11 is provided on the roller conveyor 1. The scissor mechanism 11 is mainly formed by connecting several scissor arms 111, connecting rods and rollers 2.
[0022] The bottom and middle joints of the scissor arms 111 are connected by a connecting rod, and the top joint is connected by a roller 2.
[0023] The roller 2 is rotatably connected to the connecting shaft 21, and the two ends of the connecting shaft 21 are provided with threaded structures; the connecting shaft 21 passes through the scissor arm 111 and the roller 2 is fixed to the scissor arm 111 by means of a nut;
[0024] The top of each scissor arm 111 is provided with a U-shaped opening 112, and the connecting shafts 21 at both ends of the roller 2 can be inserted into the scissor arm 111 through the U-shaped opening 112.
[0025] The scissor arm 111 is also detachably connected to a roller fixing plate 22 for fixing the roller 2; wherein, the bottom of the roller fixing plate 22 is provided with a fixing member for connecting to the scissor arm 111, and the top of the roller fixing plate 22 is provided with a connecting hole 221, which can be sleeved on the outer periphery of the connecting shaft 21 at the front and rear ends of the roller 2, and the roller 2 is fixed to the roller fixing plate 22 by a nut.
[0026] It should be noted that this invention simplifies the roller disassembly process, avoiding cumbersome steps. Through the design of the roller fixing plate and the U-shaped opening on the scissor arm, workers can quickly and easily disassemble the roller, significantly reducing maintenance time and improving production line availability. This invention reduces the number of components that need to be removed during disassembly; workers only need to disassemble a small portion of the structure to complete roller replacement, significantly improving work efficiency, reducing equipment downtime, and lowering maintenance costs. It also reduces the risk of workers coming into contact with complex parts during disassembly, lowering safety hazards caused by improper operation or negligence.
[0027] The U-shaped opening 112 of this utility model has a certain depth and is mainly used to adjust the height of the roller. However, the actual height of the roller is determined by the length of the roller fixing piece 22.
[0028] The actual installation process is as follows: First, align the openings 112 of the U-shaped openings 112 in the two scissor arms 111, insert the connecting shaft 21, and then continuously adjust the position of the intersection point of the U-shaped openings 112 in the two scissor arms 111, so that the connecting shaft 21 moves downward continuously. When the connecting shaft 21 is considered to be in the appropriate position, fit the connecting hole 221 of the roller fixing plate 22 into the connecting shaft 21, and at the same time, finely adjust the height of the connecting shaft 21 so that the fixing part at the bottom of the roller fixing plate 22 is fixedly connected to the scissor arm 111; finally, tighten the nut on the outside of the connecting shaft 21 to ensure that the roller fixing plate 22 is tightly attached to the scissor arm 111.
[0029] The roller conveyor 1 is a conventional technology. In order to achieve transmission, it is necessary to consider setting a belt between the adjacent rollers 2 and the scissor arm 111 to achieve the conventional transmission. Since this is a conventional technology, it is not described in detail. The scissor mechanism 11 is mainly used to extend the transmission of the roller conveyor 1.
[0030] Depending on the structure of the fastener, the present invention can be derived into the following two embodiments:
[0031] In Example 1, the fixing component is a fixing hole 222 provided at the bottom of the roller fixing plate 22;
[0032] The scissor arm 111 is provided with a threaded hole, so that the roller fixing plate 22 can be connected and disconnected by a screw passing through the fixing hole 222 and the threaded hole.
[0033] Example 2
[0034] The fixing component is an embedded block (or a barb structure) provided at the bottom of the roller fixing plate 22.
[0035] The scissor arm 111 has an embedding groove in the middle that can be connected with the embedding block; so that the roller fixing piece 22 can be connected and disassembled by embedding the embedding block into the embedding groove.
[0036] It should be noted that the design of the fixing hole and threaded hole, as well as the insert block and insert groove, are common structures, so the specific implementation method is not shown in the illustration.
[0037] Furthermore, the roller conveyor 1 is also equipped with a connecting rod for connecting the casters and several casters, which facilitates the movement of the roller conveyor 1. This structure is not a critical aspect of this invention and is therefore not included in the claims.
[0038] In summary, by adding a roller fixing plate and a U-shaped opening structure to the scissor arm, this utility model enables the roller 2 to be quickly installed on the scissor arm 111 and also enables the scissor arm 111 to be quickly disassembled.
[0039] Although this utility model has been illustrated and described using specific embodiments and alternative methods, it should be understood that various changes and modifications are permitted as long as they do not depart from the spirit and scope of this utility model. Therefore, it should be understood that this utility model is not limited in any sense except by the appended claims and their equivalents.
Claims
1. A conveyor with easily replaceable rollers, the main body of which is a roller conveyor (1), and the roller conveyor (1) is provided with a scissor mechanism (11), the scissor mechanism (11) is mainly formed by connecting several scissor arms (111), connecting rods and rollers (2); The bottom and middle joints of the scissor arms (111) are connected by a connecting rod, and the top joint is connected by a roller (2). wherein The roller (2) is rotatably connected to the connecting shaft (21), and the two ends of the connecting shaft (21) are provided with threaded structures; the connecting shaft (21) passes through the scissor arm (111) and the roller (2) is fixed to the scissor arm (111) by means of a nut; The feature is that: the top of each scissor arm (111) is provided with a U-shaped opening (112), and the connecting shafts (21) at both ends of the roller (2) can be inserted into the scissor arm (111) through the U-shaped opening (112); The scissor arm (111) is also detachably connected to a roller fixing plate (22) for fixing the roller (2); wherein, the bottom of the roller fixing plate (22) is provided with a fixing member for connecting to the scissor arm (111), and the top of the roller fixing plate (22) is provided with a connecting hole (221). The connecting hole (221) can be sleeved on the outer periphery of the connecting shaft (21) at both ends of the roller (2), and the roller (2) is fixed to the roller fixing plate (22) by a nut.
2. A conveyor with exchangeable rollers according to claim 1, characterized in that: The fixing component is a fixing hole (222) provided at the bottom of the roller fixing plate (22); The scissor arm (111) is provided with a threaded hole, so that the roller fixing plate (22) can be disassembled and connected by a screw passing through the fixing hole (222) and the threaded hole.
3. The conveyor with easily replaceable rollers according to claim 1, characterized in that: The fixing component is an embedded block provided at the bottom of the roller fixing piece (22); The scissor arm (111) has an embedding groove in the middle that can be connected with the embedding block; so that the roller fixing piece (22) can be connected and disassembled by embedding the embedding block into the embedding groove.