Chain wheel support for T-shaped rail door opener
By installing rubber pads and rollers on the T-shaped track and adjusting the chain tension using threaded posts and rotating nuts, the problems of cumbersome chain adjustment and noise were solved, achieving stable and quiet chain operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-23
- Publication Date
- 2026-03-27
AI Technical Summary
The existing T-rail door opener has a cumbersome chain tension adjustment and the friction between the chain and sprocket generates noise, affecting the stability of the door's operation and causing noise problems.
Rubber pads are installed in square grooves arranged in a matrix on the track. Rollers contact the chain, and the chain tension is adjusted by using threaded posts and rotating nuts. A servo motor drives the chain movement to reduce friction and noise.
The chain tension adjustment process has been simplified, reducing friction and noise between the chain and the track, and improving the stability and quietness of the gate operation.
Smart Images

Figure CN224048971U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to door opener device technical field especially relates to a chain wheel support for T rail door opener. BACKGROUND
[0002] With the progress of science and technology, automation and intelligence have become the development trend of modern buildings and industrial facilities. More and more places, such as shopping malls, warehouses, industrial plants, etc., begin to use automatic door opening systems to improve work efficiency and safety. T rail door opener, because of its simple structure, convenient maintenance and reliable use, has become a popular choice in automatic door systems.
[0003] However, the existing chain wheel support for T rail door opener has the following shortcomings: in some cases, the tension of the chain may gradually relax over time, causing the door body to run unstably, making adjustment more cumbersome, and the friction between the chain and the chain wheel, as well as the collision between the chain and the support or track due to shaking, will produce a lot of noise. SUMMARY
[0004] (I) Technical problem solved
[0005] The technical problem solved by the utility model is to provide a chain wheel support for T rail door opener with high practicality and simple structure, which can be adjusted by simple operation, solving the problem of cumbersome tension adjustment and excessive noise of the chain mentioned in the background technology.
[0006] (II) Technical solution
[0007] To achieve the above purpose, the utility model is implemented by the following technical scheme: a chain wheel support for T rail door opener, comprising a track and a supporting bracket, the upper surface of the track is provided with square grooves in a matrix distribution, the inside of the square grooves is fixedly connected with rubber cushions, the surface of the rubber cushions is fixedly connected with semicircular blocks, the surface of the semicircular blocks is provided with a bracket, the surface of the bracket is rollingly connected with a roller, both ends of the track are provided with fixed boxes, one side of the fixed box is provided with a chain through a bolt, the surface of one side of the chain is provided with a threaded column, the surface of the threaded column is screwedly connected with a rotating nut.
[0008] Optionally, a servo motor is fixedly installed inside the supporting bracket, and the output end of the servo motor is spline-connected with a transmission rod.
[0009] Optionally, a clamping buckle is arranged on the surface of the transmission rod, and a gear is connected to the surface of the clamping buckle.
[0010] Optionally, a threaded hole is formed in one side of the fixed box, and the hole diameter of the threaded hole matches the size of the bolt.
[0011] Optionally, the surface of the roller corresponds to the axis of the chain, and a gap exists between the roller and the chain.
[0012] Optionally, the support frame comprises a top cover, a stand is fixedly connected to the bottom of the top cover, and a support plate is fixedly connected to the bottom of the stand.
[0013] Optionally, a heat dissipation hole is formed in the surface of the top cover, and one side of the support plate is connected to the bottom of the servo motor.
[0014] (Three) beneficial effects
[0015] The utility model provides a chain wheel support for T type rail door opener, has the following beneficial effects:
[0016] First, the square groove of matrix distribution is used on the upper surface of the track, and soft rubber cushion is equipped in each groove. In this way, the vibration generated in the running process can be effectively absorbed, the friction between the chain and the track can be significantly reduced, the noise and wear are reduced, and the rolling shaft can reduce the amplitude of the chain running, and the probability of derailment between the chain and the gear is reduced. In addition, in order to facilitate the user to adjust the tension of the chain, the combination of the threaded column and the rotating nut is introduced, the user only needs to rotate the nut easily to reach the ideal tension state, and the tedious adjustment process is saved. DRAWINGS
[0017] Fig. 1 It is the whole structure schematic diagram of the utility model;
[0018] Fig. 2 It is the enlarged structure schematic diagram of the utility model A place;
[0019] Fig. 3 It is the threaded column and rotating nut structure schematic diagram of the utility model;
[0020] Fig. 4 It is the transmission rod and gear structure schematic diagram of the utility model.
[0021] In the drawing: 1, track; 2, support frame; 21, top cover; 22, stand; 23, support plate; 3, rubber cushion; 4, semicircular block; 5, support; 6, roller; 7, fixed box; 8, chain; 9, threaded column; 10, rotating nut; 11, servo motor; 12, transmission rod; 13, gear. DETAILED DESCRIPTION
[0022] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the range protected by the utility model.
[0023] Referring to Figs. 1 to 4 The utility model provides a technical scheme: a chain wheel support for T-shaped rail door opener, including track 1 and support frame 2, the upper surface of track 1 is set with square groove in matrix distribution, the inside of square groove is fixedly connected with rubber cushion 3, the surface of rubber cushion 3 is fixedly connected with semicircle block 4, the surface of semicircle block 4 is provided with support 5, the surface of support 5 is rotatably connected with roller 6, both ends of track 1 are provided with fixed box 7, one side of fixed box 7 is provided with chain 8 through bolt, the surface of one side of chain 8 is provided with threaded column 9, the surface of threaded column 9 is threadedly connected with rotating nut 10;
[0024] Specifically, rubber cushion 3 is installed in square groove, mainly absorbs shock and impact force, reduces the friction between chain 8 and track 1, thereby reduce noise and wear and tear, semicircle block 4 can be placed with support 5 arc, better adapt to the contact of the surface of chain 8, the setting of roller 6 better reduces the pressure generated when chain 8 shakes, rotating nut 10 is connected with threaded column 9, and the user can adjust the tension of chain 8 by rotating nut 10, which simplifies the adjustment process.
[0025] The inside of support frame 2 is fixedly installed with servo motor 11, the output end of servo motor 11 is spline-connected with transmission rod 12, and the setting of servo motor 11 and transmission rod 12 provides power output for the device;
[0026] The surface of transmission rod 12 is provided with a clamping buckle, the surface of the clamping buckle is connected with a gear 13, and the clamping buckle is better matched with the gear 13.
[0027] One side of fixed box 7 is provided with a threaded hole, and the hole diameter of the threaded hole is matched with the size of the bolt, so that the chain 8 can be fixed more conveniently, and personnel can adjust conveniently.
[0028] The surface of roller 6 corresponds to the axis of chain 8, and there is a gap between roller 6 and chain 8, which can provide enough space for the operation of chain 8, and also can reduce the shaking thereof.
[0029] The support frame 2 includes a top cover 21, the bottom of the top cover 21 is fixedly connected with a stand column 22, and the bottom of the stand column 22 is fixedly connected with a support plate 23, which can provide a support point for the device and protect the internal servo motor 11.
[0030] The surface of the top cover 21 is provided with a heat dissipation hole, and the bottom of the servo motor 11 is connected with one side of the support plate 23, so that heat dissipation is facilitated.
[0031] The utility model discloses a device, its working principle is as follows: servo motor 11 as main power source, fixed mounting is in the inside of support frame 2, and the output of servo motor 11 is connected to transmission rod 12 through spline. The surface of transmission rod 12 is provided with the joint buckle, and is connected with gear 13, when servo motor 11 starts, rotates and drives transmission rod 12 to rotate, and one side of chain 8 is fixed on fixed box 7 through bolt, and its surface is connected to servo motor 11 drive system. When servo motor 11 works, the rotation of gear 13 drives chain 8 to move through transmission rod 12, thereby realizes the door opening action, in order to ensure the normal operation of chain 8, can adjust the tension of chain 8 through the rotation of nut 10. The square groove inside track 1 is equipped with rubber cushion 3, and rubber cushion 3 is mainly used for absorbing vibration and impact force, reduces the friction between chain 8 and track 1, thereby reduces noise and abrasion. The design of semicircular block 4 and support 5 makes support 5 arc-shaped, better adapt to the movement of chain 8. The setting of roller 6 effectively reduces the sway pressure produced in the operation process of chain 8, improves the stability of the whole system. The surface of top cover 21 is provided with heat dissipation hole, to help servo motor 11 heat dissipation, ensure its temperature control in the working process, thereby prolongs the service life.
[0032] It should be noted that the device structure and the drawings of the utility model mainly describe the principle of the utility model, and the setting of the power mechanism, the power supply system and the control system of the device is not completely described in the technical principle of the design, but under the premise that the technical personnel in the field understand the principle of the above-mentioned utility model, the specific of the power mechanism, the power supply system and the control system can be clearly known, and the control mode of the application file is automatically controlled by the controller, and the control circuit of the controller can be realized by simple programming of the technical personnel in the field.
[0033] The standard parts used can be purchased from the market, and can be ordered according to the description and drawings, and the specific connection mode of each part adopts the conventional bolt, rivet, welding and other conventional means in the prior art, and the mechanical parts and equipment adopt the conventional type in the prior art, and the components known by the technical personnel in the field, and the structure and principle are known by the technical personnel through the technical manual or conventional experimental method.
[0034] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principle and spirit of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.
Claims
1. A chain wheel support for T- rail door openers, comprising a rail (1) and a support bracket (2), characterized in that: The upper surface of the track (1) is provided with square grooves in a matrix, the interiors of the square grooves are fixedly connected with rubber cushions (3), the surface of the rubber cushion (3) is fixedly connected with a semicircle block (4), the surface of the semicircle block (4) is provided with a support (5), the surface of the support (5) is rollingly connected with a roller (6), both ends of the track (1) are provided with a fixed box (7), one side of the fixed box (7) is provided with a chain (8) through bolts, the surface of one side of the chain (8) is provided with a threaded column (9), the surface of the threaded column (9) is screw-connected with a rotating nut (10).
2. The chain wheel support for T rail door operator according to claim 1, characterized in that: The inside of the supporting frame (2) is fixedly installed with a servo motor (11), the output end of the servo motor (11) is spline-connected with a transmission rod (12).
3. A chain wheel support for a T-rail door operator according to claim 2, characterized in that: The surface of the transmission rod (12) is provided with a clamping buckle, the surface of the clamping buckle is connected with a gear (13).
4. The chain wheel support for T rail door operator according to claim 1, characterized in that: One side of the fixed box (7) is provided with a threaded hole, the hole diameter of the threaded hole is matched with the size of the bolt.
5. The chain wheel support for T rail door operator according to claim 1, characterized in that: The surface of the roller (6) corresponds to the axis of the chain (8), and there is a gap between the roller (6) and the chain (8).
6. The chain wheel support for T rail door operator according to claim 1, characterized in that: The supporting frame (2) comprises a top cover (21), the bottom of the top cover (21) is fixedly connected with a stand column (22), and the bottom of the stand column (22) is fixedly connected with a supporting plate (23).
7. A sprocket support for a T-rail door operator according to claim 6, characterized in that: The surface of the top cover (21) is provided with a heat dissipation hole, and one side of the supporting plate (23) is connected with the bottom of the servo motor (11).