Self-lubricating anti-derailing door body roller assembly

Abstract

The utility model discloses a kind of self-lubricating anti-derailing door body roller assemblies, including guide rail, mounting seat, the both ends of guide rail are equipped with limit sliding slot, L-shaped slider is slidably installed in the limit sliding slot, L-shaped slider is installed in the lower end of mounting seat, roller is rotatably installed on guide rail, self-lubricating bearing is installed in the middle of roller, shaft rod is installed on self-lubricating bearing, dismounting structure is arranged in the inside of mounting seat.The utility model relates to a kind of self-lubricating anti-derailing door body roller assemblies, when needing to dismount and replace roller, rotating rotating block, make rectangular clamping block in rectangular groove upwards sliding, until rectangular clamping block is separated from the rectangular clamping slot of the upper end of connecting block, then pull roller forward, drive the connecting block of the both ends of shaft rod in rectangular sliding slot forward sliding, until remove, roller can be disassembled and replaced.

Description

Technical Field

[0001] This utility model relates to the technical field of door roller assembly, and in particular to a self-lubricating anti-derailment door roller assembly. Background Technology

[0002] Self-lubricating anti-derailment door roller assemblies are core transmission components used in various types of doors (such as sliding doors, swivel doors, industrial furnace doors, platform doors, etc.). Their core value lies in integrating two major functions: "self-lubricating and maintenance-free" and "anti-derailment and high stability." This reduces frictional wear during door operation, lowers manual maintenance costs, and avoids the risk of derailment caused by roller offset and jumping during door sliding / rolling, ultimately improving the safety, smoothness, and service life of the door. However, currently used door rollers are fixed with multiple bolts, requiring tools to tighten the bolts during installation and disassembly, making roller replacement cumbersome, time-consuming, and labor-intensive. Utility Model Content

[0003] The main purpose of this utility model is to provide a self-lubricating anti-derailment door roller assembly, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A self-lubricating anti-derailment door roller assembly includes a guide rail and a mounting base. Limit grooves are formed at both ends of the guide rail, and an L-shaped slider is slidably installed within each limit groove. An L-shaped slider is also installed at the lower end of the mounting base. A roller is rolled on the guide rail, and a self-lubricating bearing is installed in the middle of the roller. A shaft is mounted on the self-lubricating bearing. The mounting base has an internal disassembly and assembly structure, which includes a rotating block, a rectangular transmission groove, a first bearing, a circular transmission rod, a first bevel gear, a second bevel gear, a second bearing, a connecting rod, a rectangular groove, a threaded rod, a rectangular locking block, a rectangular locking groove, a connecting block, and a rectangular sliding groove.

[0005] More preferably, the mounting base has a rectangular transmission groove inside, and a bearing is installed at both ends of the rectangular transmission groove. A circular transmission rod is installed on the bearing.

[0006] More preferably, a rotating block is installed at the other end of the circular transmission rod, a first bevel gear is installed on the outer surface of the circular transmission rod near both ends, and a second bearing is installed at the lower end of the rectangular transmission groove near both ends.

[0007] More preferably, a connecting rod is installed on the second bearing, a second bevel gear is installed on the upper end of the connecting rod, and a threaded rod is connected to the lower end of the connecting rod.

[0008] More preferably, the No. 2 bevel gear installed at the upper end of the connecting rod meshes with the No. 1 bevel gear installed near both ends on the outer surface of the circular transmission rod, and a rectangular locking block is threaded onto the outer surface of the threaded rod.

[0009] More preferably, rectangular grooves are formed on both ends of the inner side surface of the mounting base, and a rectangular slot is formed at the upper end of the rectangular groove, and a connecting block is slidably installed in the rectangular groove.

[0010] More preferably, connecting blocks are installed at both ends of the shaft, and a rectangular slot is provided at the upper end of the connecting block, into which a rectangular block is inserted.

[0011] Compared with the prior art, the present invention has the following beneficial effects: In this utility model, the disassembly and assembly structure allows the roller to be disassembled and replaced when necessary. By rotating the rotating block, the rectangular locking block slides upward in the rectangular groove until it disengages from the rectangular groove at the top of the connecting block. Then, the roller is pulled forward, causing the connecting blocks installed at both ends of the shaft to slide forward in the rectangular sliding groove until they are removed, allowing the roller to be disassembled and replaced. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of a self-lubricating anti-derailment door roller assembly according to the present invention; Figure 2 This is a cross-sectional view of a self-lubricating anti-derailment door roller assembly according to the present invention; Figure 3 This utility model relates to a self-lubricating anti-derailment door roller assembly. Figure 2 Enlarged view of point A in the middle.

[0013] In the diagram: 1. Guide rail; 2. Limiting groove; 201. L-shaped slider; 3. Mounting base; 4. Roller; 401. Self-lubricating bearing; 402. Shaft; 5. Disassembly / assembly structure; 501. Rotating block; 502. Rectangular transmission groove; 503. Bearing No. 1; 504. Circular transmission rod; 505. Bevel gear No. 1; 506. Bevel gear No. 2; 507. Bearing No. 2; 508. Connecting rod; 509. Rectangular groove; 510. Threaded rod; 511. Rectangular locking block; 512. Rectangular locking groove; 513. Connecting block; 514. Rectangular groove. Detailed Implementation

[0014] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0015] Participation Figure 1-3As shown, a self-lubricating anti-derailment door roller assembly includes a guide rail 1 and a mounting base 3. Limiting grooves 2 are provided at both ends of the guide rail 1, and L-shaped sliders 201 are slidably installed within the limiting grooves 2. An L-shaped slider 201 is installed at the lower end of the mounting base 3. Rollers 4 are rolled on the guide rail 1, and a self-lubricating bearing 401 is installed in the middle of the rollers 4. A shaft 402 is installed on the self-lubricating bearing 401. The mounting base 3 has a disassembly and assembly structure 5 inside, which includes a rotating block 501, a rectangular transmission groove 502, a first bearing 503, a circular transmission rod 504, a first bevel gear 505, a second bevel gear 506, a second bearing 507, a connecting rod 508, a rectangular groove 509, a threaded rod 510, a rectangular locking block 511, a rectangular locking groove 512, a connecting block 513, and a rectangular sliding groove 514.

[0016] Specifically, the limiting grooves 2 opened at both ends of the guide rail 1 and the L-shaped sliders 201 slidably installed in the limiting grooves 2 can prevent the roller 4 from derailing when moving. The self-lubricating bearing 401 installed in the middle of the roller 4 and the shaft 402 installed on the self-lubricating bearing 401 can be self-lubricated by filling the self-lubricating bearing 401 with solid grease or embedding lubricating blocks.

[0017] Participation Figure 2-3 As shown, a rectangular transmission groove 502 is provided inside the mounting base 3. A bearing 503 is installed at both ends of the rectangular transmission groove 502. A circular transmission rod 504 is installed on the bearing 503. A rotating block 501 is installed at the other end of the circular transmission rod 504. A bevel gear 505 is installed on the outer surface of the circular transmission rod 504 near both ends. A bearing 507 is installed at the lower end of the rectangular transmission groove 502 near both ends.

[0018] Specifically, the circular transmission rod 504 installed on the first bearing 503 and the rotating block 501 installed at the other end of the circular transmission rod 504 can rotate the rotating block 501, causing the circular transmission rod 504 to rotate on the first bearing 503, thereby causing the first bevel gear 505 installed near both ends on the outer surface of the circular transmission rod 504 to rotate.

[0019] Participation Figure 2-3 As shown, a connecting rod 508 is installed on the second bearing 507. A second bevel gear 506 is installed on the upper end of the connecting rod 508. A threaded rod 510 is connected to the lower end of the connecting rod 508. The second bevel gear 506 installed on the upper end of the connecting rod 508 meshes with the first bevel gear 505 installed near both ends on the outer surface of the circular transmission rod 504. A rectangular locking block 511 is threaded onto the outer surface of the threaded rod 510.

[0020] Specifically, through the connecting rod 508 installed on the second bearing 507 and the second bevel gear 506 installed on the upper end of the connecting rod 508, when the first bevel gear 505 rotates, because the second bevel gear 506 installed on the upper end of the connecting rod 508 meshes with the first bevel gear 505 installed near both ends on the outer surface of the circular transmission rod 504, the connecting rod 508 is driven to rotate on the second bearing 507, thereby driving the threaded rod 510 connected to the lower end of the connecting rod 508 to rotate.

[0021] Participation Figure 2-3 As shown, rectangular grooves 514 are provided on both ends of the inner side surface of the mounting base 3. A rectangular groove 509 is provided on the upper end of the rectangular groove 514. A connecting block 513 is slidably installed in the rectangular groove 514. A connecting block 513 is installed on both ends of the shaft 402. A rectangular slot 512 is provided on the upper end of the connecting block 513. A rectangular block 511 is inserted into the rectangular slot 512.

[0022] Specifically, through the rectangular slot 512 opened at the upper end of the connecting block 513 and the rectangular block 511 inserted in the rectangular slot 512, when the threaded rod 510 rotates, the rectangular block 511 threaded on the outer surface of the threaded rod 510 slides upward in the rectangular groove 509 until the rectangular block 511 disengages from the rectangular slot 512 opened at the upper end of the connecting block 513. Then, the roller 4 is pulled forward, causing the connecting blocks 513 installed at both ends of the shaft 402 to slide forward in the rectangular slide groove 514 until they are removed. Then the roller 4 can be disassembled and replaced.

[0023] It should be noted that this utility model is a self-lubricating anti-derailment door roller assembly. When the roller 4 needs to be disassembled and replaced, the rotating block 501 is rotated, causing the rotating block 501 to drive the circular transmission rod 504 to rotate on the first bearing 503, thereby driving the first bevel gear 505 installed near both ends of the outer surface of the circular transmission rod 504 to rotate. Because the second bevel gear 506 installed on the upper end of the connecting rod 508 meshes with the first bevel gear 505 installed near both ends of the outer surface of the circular transmission rod 504, The connecting rod 508 is rotated on the second bearing 507, which in turn drives the threaded rod 510 connected to the lower end of the connecting rod 508 to rotate. This causes the rectangular locking block 511, which is threaded on the outer surface of the threaded rod 510, to slide upward in the rectangular groove 509 until the rectangular locking block 511 disengages from the rectangular groove 512 at the upper end of the connecting block 513. Then, the roller 4 is pulled forward, causing the connecting blocks 513 installed at both ends of the shaft 402 to slide forward in the rectangular slide groove 514 until they are removed. The roller 4 can then be removed and replaced.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A self-lubricating, anti-derailment door roller assembly, characterized in that, The system includes a guide rail (1) and a mounting base (3). Both ends of the guide rail (1) have limit grooves (2). An L-shaped slider (201) is slidably installed in the limit grooves (2). An L-shaped slider (201) is installed at the lower end of the mounting base (3). A roller (4) is rolled on the guide rail (1). A self-lubricating bearing (401) is installed in the middle of the roller (4). A shaft (402) is installed on the self-lubricating bearing (401). The mounting base (3) has an internal... The assembly and disassembly structure (5) includes a rotating block (501), a rectangular transmission groove (502), a first bearing (503), a circular transmission rod (504), a first bevel gear (505), a second bevel gear (506), a second bearing (507), a connecting rod (508), a rectangular groove (509), a threaded rod (510), a rectangular locking block (511), a rectangular locking groove (512), a connecting block (513), and a rectangular sliding groove (514).

2. The self-lubricating anti-derailment door roller assembly according to claim 1, characterized in that: The mounting base (3) has a rectangular transmission groove (502) inside. A bearing (503) is installed at both ends of the rectangular transmission groove (502). A circular transmission rod (504) is installed on the bearing (503).

3. The self-lubricating anti-derailment door roller assembly according to claim 2, characterized in that: A rotating block (501) is installed at the other end of the circular transmission rod (504). A first bevel gear (505) is installed on the outer surface of the circular transmission rod (504) near both ends. A second bearing (507) is installed at the lower end of the rectangular transmission groove (502) near both ends.

4. The self-lubricating anti-derailment door roller assembly according to claim 3, characterized in that: A connecting rod (508) is installed on the second bearing (507), a second bevel gear (506) is installed on the upper end of the connecting rod (508), and a threaded rod (510) is connected to the lower end of the connecting rod (508).

5. A self-lubricating anti-derailment door roller assembly according to claim 4, characterized in that: The second bevel gear (506) installed at the upper end of the connecting rod (508) meshes with the first bevel gear (505) installed near both ends on the outer surface of the circular transmission rod (504), and a rectangular locking block (511) is threaded onto the outer surface of the threaded rod (510).

6. The self-lubricating anti-derailment door roller assembly according to claim 5, characterized in that: The mounting base (3) has rectangular grooves (514) on both inner ends. A rectangular groove (509) is provided at the upper end of the rectangular groove (514). A connecting block (513) is slidably installed in the rectangular groove (514).

7. A self-lubricating anti-derailment door roller assembly according to claim 6, characterized in that: Both ends of the shaft (402) are equipped with connecting blocks (513), and the upper end of the connecting block (513) is provided with a rectangular slot (512), and a rectangular block (511) is inserted into the rectangular slot (512).

Images