Transmission shell convenient to install
The design of convenient and installation components solves the problem of complex maintenance of the transmission housing, enabling rapid installation and convenient maintenance, and improving the reliability and safety of the equipment.
Patent Information
- Application Number
- CN202422907792.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-27
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-11-27
AI Technical Summary
The existing transmission housing design is complex to operate during maintenance and repair, increasing workload and troubleshooting costs, while neglecting the convenience of maintenance.
A transmission housing comprising a convenient component and an installation component is designed. The convenient component enables quick opening and locking via a protective door, a limiting groove, and a locking mechanism. The installation component ensures precise installation via a waist hole and bolt connection. Combined with a heat dissipation mechanism and a dust cover, it improves the ease of maintenance and reliability.
It enables rapid installation and convenient maintenance of the transmission housing, reduces operational difficulty, improves equipment maintainability and safety, and reduces failure rate and maintenance costs.
Smart Images

Figure CN223498607U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of transmission housing technology, and in particular relates to a transmission housing that is easy to install. Background Technology
[0002] With the widespread use of bicycles, motorcycles, and automobiles, the transmission, as a crucial component, has become particularly important in terms of performance stability and long-term reliability. The main function of a transmission is to adjust the power output ratio according to different operating requirements, thereby improving the vehicle's power, economy, and adaptability. A transmission system typically consists of multiple precision components, and the coordinated operation of these components is a prerequisite for ensuring the normal functioning of the transmission.
[0003] Utility model patent CN210770154U discloses a transmission housing for dust prevention and heat dissipation, including a transmission and springs. A first housing is provided on one side of the transmission, wherein a cooling pipe is installed inside the first housing, a water pump is installed on one side of the cooling pipe, and a cooling box is fixed inside the first housing near the cooling pipe. The cooling box contains condensate. First fixing blocks are fixed on both sides of the first housing, and a fixing groove is opened on one side of the first fixing block. This transmission housing for dust prevention and heat dissipation, with the first and second housings fixed to the outside of the transmission, can isolate the transmission from dust. The annular shape of the internal cooling pipe allows water to circulate, so that the water inside the cooling pipe cools the transmission as it circulates, preventing the transmission from overheating during operation. The first and second housings facilitate dust prevention and heat dissipation for the transmission.
[0004] While this technology can protect the transmission from dust and heat, preventing overheating and malfunctions, transmission maintenance and repair are complex and technically demanding processes. The transmission housing design often prioritizes strength and durability, but neglects ease of maintenance. This design frequently makes transmission inspection, maintenance, and parts replacement difficult, especially when disassembling the housing, cleaning, or replacing internal components. Operators need to spend considerable time on disassembly and reassembly, increasing both workload and troubleshooting costs. Utility Model Content
[0005] The purpose of this utility model is to address the aforementioned technical problems by providing a transmission housing that is convenient for inspection and maintenance, and a transmission housing that is easy to install and improves maintenance efficiency.
[0006] In view of this, the present invention provides a transmission housing that is easy to install, comprising:
[0007] The outer casing contains the gearbox body;
[0008] Mounting components are located on the left and right sides of the housing body and are used to fix the housing body in a designated position.
[0009] A convenient component is located inside the front of the housing body to protect the transmission body inside the housing body and to be easily opened when maintenance is required.
[0010] This convenient component includes:
[0011] The protective door is located inside the front of the outer casing.
[0012] A limiting groove is formed inside the front side of the outer shell body, and the protective door is located in the limiting groove, which restricts the position of the protective door.
[0013] The placement slot is located inside the bottom of the outer shell. The placement slot is connected to the limiting slot. After the protective door is opened, it is placed into the placement slot and pushed into the placement slot.
[0014] The locking mechanism is located inside the outer casing and works in conjunction with the protective door to lock the protective door in the limit groove.
[0015] In the above technical solution, the locking mechanism further includes:
[0016] Through slots are provided on the top and bottom sides and left and right ends of the protective door;
[0017] The support plate is located inside the outer shell body on the upper and lower sides and the left and right ends, and the support plate is located in the limiting groove;
[0018] A locking block is provided on the front side of the support plate, and the locking block passes through and extends out of the through slot;
[0019] Guide plates are installed on the upper and lower ends of the left and right sides of the front of the protective door;
[0020] The card plate is slidably mounted on the guide plate, and the card plate is engaged with the locking block.
[0021] The grip is mounted on the card plate.
[0022] In any of the above technical solutions, the installation components further include:
[0023] Mounting plates are located on the left and right sides of the outer casing body and are connected to the outer casing body by bolts.
[0024] Waist holes are made at the top and bottom ends of the mounting plate.
[0025] In any of the above technical solutions, furthermore, heat dissipation holes are provided on both the front and rear sides of the outer shell body, and there are multiple heat dissipation holes that are evenly spaced along the length direction of the outer shell body.
[0026] In any of the above technical solutions, a heat dissipation mechanism is further included, which includes:
[0027] Mounting slots are provided on the left and right sides of the outer casing;
[0028] A support shell is installed in the mounting slot;
[0029] The fan is located inside the support housing;
[0030] The motor is mounted on the support housing, and the motor output shaft is connected to the fan.
[0031] The air inlet is located on the left side of the outer casing.
[0032] The exhaust vent is located on the right side of the outer casing, and is distributed opposite to the air inlet vent.
[0033] In any of the above technical solutions, a dustproof plate is further provided on the outside of the support shell.
[0034] The beneficial effects of this utility model are:
[0035] 1. When the gearbox body needs to be inspected, open the protective door and push it into the placement slot. The protective door is temporarily stored in the placement slot, which makes it convenient for users to perform the required maintenance operations. In this way, the gearbox housing can not only provide reliable protection during use, but also facilitate maintenance and repair, thereby improving the maintainability and safety of the equipment.
[0036] 2. The lock block extends out of the protective door through the through slot, pushing the latch plate to engage with the lock block. The engagement between the latch plate and the lock block secures the protective door, preventing it from being accidentally opened during normal operation. The locking and unlocking of the protective door becomes safer, more reliable, and more convenient, which not only improves the ease of operation but also enhances the safety of the protective door, greatly improving the reliability and maintainability of the gearbox housing.
[0037] 3. By aligning the transmission housing with the installation position, the bolts are passed through the slots on the mounting plate to install the housing body in the designated position. Due to the design of the slots, the bolts can be slightly adjusted to ensure that the housing is accurately connected to the support structure. This allows the housing to be flexibly and accurately connected to other components, reducing possible errors and installation difficulties during the installation process.
[0038] 4. The motor drives the fan to rotate, and the rotation of the fan causes airflow, which carries away the heat generated by the transmission components and exhausts it through the vent. The internal temperature of the transmission gradually decreases and is maintained within a suitable operating temperature range to prevent mechanical damage or performance degradation caused by overheating. The dust cover effectively blocks external dust, sand and other particles from entering the transmission housing, reducing maintenance costs. Attached Figure Description
[0039] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;
[0040] Figure 2 This is a three-dimensional structural diagram of the first part of this utility model;
[0041] Figure 3 This is a three-dimensional structural diagram of the second part of this utility model;
[0042] Figure 4 This is a three-dimensional structural diagram of the third part of this utility model;
[0043] Figure 5 This is an enlarged view of utility model A;
[0044] The attached diagram is labeled as follows: 1. Outer shell; 2. Gearbox body; 3. Convenience component; 31. Protective door; 32. Limiting groove; 33. Placement groove; 4. Locking mechanism; 41. Through groove; 42. Support plate; 43. Locking block; 44. Guide plate; 45. Locking plate; 46. Handle; 5. Mounting component; 51. Mounting plate; 52. Waist hole; 6. Heat dissipation hole; 7. Heat dissipation mechanism; 71. Mounting groove; 72. Support shell; 73. Fan; 74. Motor; 75. Air inlet; 76. Air outlet; 8. Dustproof plate. Detailed Implementation
[0045] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.
[0046] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items, and therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.
[0047] Example 1:
[0048] like Figure 1, Figure 2 , Figure 3 and Figure 5 As shown, this embodiment provides a conveniently installed transmission housing, including:
[0049] The outer casing 1 contains the gearbox body 2.
[0050] Mounting components 5 are located on the left and right sides of the outer casing 1 and are used to fix the outer casing 1 in the designated position;
[0051] The convenient component 3 is located inside the front side of the housing body 1, which serves to protect the transmission body 2 inside the housing body 1 and can be easily opened when maintenance is required.
[0052] The convenient component 3 includes:
[0053] Protective door 31 is located inside the front side of the outer casing 1;
[0054] A limiting groove 32 is formed inside the front side of the outer shell body 1, and a protective door 31 is located in the limiting groove 32, which restricts the position of the protective door 31.
[0055] The placement slot 33 is located inside the bottom of the outer shell body 1. The placement slot 33 is connected to the limiting slot 32. After the protective door 31 is opened, it is placed into the placement slot 33 and pushed into the placement slot 33.
[0056] The locking mechanism 4 is located inside the outer casing 1 and cooperates with the protective door 31 to lock the protective door 31 in the limiting groove 32.
[0057] In this technical solution, the protective door 31 is designed primarily to prevent external environmental factors such as dust, moisture, and mechanical impact from affecting the transmission body 2. The protective door 31 is tightly connected to the outer casing 1 via a limiting groove 32 and a locking mechanism 4, ensuring that the transmission body 2 remains protected during normal operation. The mounting component 5 allows the outer casing 1 to be quickly and stably fixed in a designated position, making the installation process faster and saving time and costs. The convenient component 3 allows maintenance personnel easy access to the interior of the casing for inspection. The protective door 31 can be opened by releasing the locking mechanism 4 and placed in the placement groove 33, facilitating inspection, maintenance, or replacement of the transmission body 2. The placement groove 33 ensures that the protective door 31 does not occupy excessive space when open, avoiding operational inconvenience. The locking mechanism 4 ensures that the protective door 31 remains safely within the limiting groove 32 during non-maintenance periods, preventing accidental opening due to external force or vibration. This design enhances the overall system safety.
[0058] Workflow: The outer casing 1 is fixed in the designated position using the mounting assembly 5, ensuring stable installation and protecting the transmission body 2. The protective door 31 is positioned by the limiting groove 32 and fixed to the outer casing 1 by the locking mechanism 4, ensuring adequate protection for the transmission body 2. When maintenance of the transmission body 2 is required, the locking mechanism 4 of the protective door 31 is released. The protective door 31 is opened and pushed into the placement groove 33, where it is temporarily stored for necessary maintenance. After maintenance, the protective door 31 is returned to the limiting groove 32, ensuring it is in a safe position, and then locked again, ensuring the transmission body 2 is protected and the outer casing 1 returns to normal operation. In this way, the transmission casing not only provides reliable protection during use but also facilitates maintenance and repair, improving the maintainability and safety of the equipment.
[0059] like Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, in this embodiment, the optimized locking mechanism 4 includes:
[0060] The through groove 41 is provided on the upper and lower sides and the left and right ends of the protective door 31;
[0061] Support plate 42 is disposed inside the upper and lower sides and the left and right ends of the outer shell body 1, and support plate 42 is located in the limiting groove 32;
[0062] Locking block 43 is located on the front side of support plate 42, and locking block 43 passes through and extends out of through slot 41;
[0063] Guide plates 44 are installed on the upper and lower ends of the left and right sides of the front of the protective door 31;
[0064] The card plate 45 is slidably disposed on the guide plate 44, and the card plate 45 is engaged with the locking block 43.
[0065] The grip 46 is mounted on the card plate 45.
[0066] In this technical solution, the locking mechanism 4 securely fixes the protective door 31 within the outer casing 1 by engaging the locking plate 45 with the locking block 43. When the protective door 31 is closed, the locking block 43 extends through the through slot 41 and engages with the locking plate 45, making the protective door 31 less susceptible to external interference or accidental opening. When inspection or maintenance is required, the user pushes the locking plate 45 with the handle 46 to slide it and release the engagement. At this time, the locking block 43 disengages from the engagement position of the locking plate 45, and the protective door 31 can be opened. The design of the handle 46 ensures the smoothness and convenience of the unlocking process. The sliding design of the guide plate 44 and the locking plate 45 ensures precise alignment between the locking plate 45 and the locking block 43, thereby increasing the stability of the locking and preventing the protective door 31 from failing to lock completely due to asymmetry or deviation. During the locking process, the locking block 43, in cooperation with the support plate 42, ensures that the protective door 31 remains in a locked state and is not easily affected by vibration or external forces. The unlocking process is greatly simplified by controlling the sliding of the latch plate 45 via the handle 46, avoiding the complex steps that may require tools in traditional locking mechanisms. The locking and unlocking processes are achieved through the engagement of the sliding latch plate 45 and the locking block 43, which greatly improves the operating efficiency of the security door 31 and saves maintenance time.
[0067] Workflow: When the protective door 31 is closed, the locking block 43 extends out of the protective door 31 through the through slot 41. The user moves the locking plate 45 outward along the guide plate 44 using the handle 46. The locking plate 45 moves until it engages with the locking block 43. The locking plate 45 is guided by the guide plate 44 to ensure precise engagement between the locking plate 45 and the locking block 43. The engagement between the locking plate 45 and the locking block 43 secures the protective door 31, preventing it from opening accidentally during normal operation. When inspection or maintenance is required, the user grasps the handle 46 and pushes the locking plate 45 to slide. As the locking plate 45 slides, the engagement with the locking block 43 is released, and the locking block 43 disengages from the through slot 41, allowing the protective door 31 to open. After opening the protective door 31, the user can enter the housing body 1 to perform necessary inspection, adjustment, or replacement operations on the transmission body 2. After maintenance, the protective door 31 is closed again, and the locking block 43 extends again through the through slot 41. The locking plate 45 slides and engages, locking the protective door 31. At this time, the protective door 31 is in the locked state, continuing to protect the gearbox body 2 and ensuring the safety of the equipment. Through the design of this locking mechanism 4, the locking and unlocking of the protective door 31 becomes safer, more reliable, and more convenient. It not only improves the ease of operation but also enhances the safety of the protective door 31, avoiding the risk of the protective door 31 being accidentally opened due to improper operation or external force. It can greatly improve the reliability and maintainability of the gearbox housing, reduce the labor intensity of users during equipment maintenance and operation, and improve the overall work efficiency of the equipment.
[0068] Example 2:
[0069] This embodiment provides a transmission housing that is easy to install. In addition to the technical solutions of the above embodiments, it also has the following technical features.
[0070] like Figure 1 , Figure 2 and Figure 4 As shown, in this embodiment, the optimized installation component 5 includes:
[0071] Mounting plates 51 are disposed on the left and right sides of the outer casing 1, and the mounting plates 51 are connected to the outer casing 1 by bolts.
[0072] Waist holes 52 are provided at the top and bottom ends of mounting plate 51.
[0073] In this technical solution, the mounting plate 51 is connected to the housing body 1 by bolts. The transmission housing is then aligned with the installation position and placed onto the predetermined support structure. Bolts are passed through the slots 52 on the mounting plate 51 to connect the housing body 1 to the support structure. Due to the design of the slots 52, the bolts can be slightly adjusted to ensure accurate alignment between the housing and the support structure. After fine-tuning the slots 52, the bolts are tightened using tools to ensure a secure and reliable connection between the mounting plate 51, the housing body 1, and the support structure. This allows the housing to be flexibly and precisely connected to other components, reducing potential errors and installation difficulty. Simultaneously, the bolted connection provides good stability and ease of disassembly, simplifying the installation, maintenance, and replacement process of the transmission housing.
[0074] Example 3:
[0075] This embodiment provides a transmission housing that is easy to install. In addition to the technical solutions of the above embodiments, it also has the following technical features.
[0076] like Figure 1 , Figure 2 and Figure 4 As shown, in this embodiment, optimized, heat dissipation holes 6 are provided on both the front and rear sides of the outer shell body 1. There are multiple heat dissipation holes 6, which are evenly distributed along the length direction of the outer shell body 1.
[0077] In this technical solution, when the transmission starts working, the various moving parts inside (such as gears and bearings) begin to operate and generate friction, causing the internal temperature to gradually rise. As the temperature rises, the heat dissipation holes 6 allow external air to flow into them through natural convection, carrying away the heat. The distribution design of the heat dissipation holes 6 ensures uniform heat dissipation on the surface of the outer casing, preventing excessive heat on one side and contributing to the uniformity of airflow, avoiding areas with poor air circulation. This improves the heat dissipation effect and avoids mechanical wear or malfunctions that may be caused by uneven temperature. Thus, it not only meets the heat dissipation requirements but also ensures the structural strength of the outer casing through a reasonable layout, and facilitates the installation and subsequent maintenance of the transmission.
[0078] like Figures 1-4 As shown, in this embodiment, the optimization further includes a heat dissipation mechanism 7, which includes:
[0079] Mounting slots 71 are provided on the left and right sides of the outer casing 1;
[0080] The support shell 72 is disposed in the mounting groove 71;
[0081] Fan 73 is located inside support housing 72;
[0082] Motor 74 is mounted on support housing 72, and the output shaft of motor 74 is connected to fan 73;
[0083] Air inlet 75 is located on the left side of the outer casing 1;
[0084] The exhaust vent 76 is located on the right side of the outer casing 1, and the exhaust vent and the air inlet vent 75 are distributed opposite to each other.
[0085] In this technical solution, when the transmission starts operating, the internal temperature of the housing 1 gradually rises. At this time, the starter motor 74 drives the fan 73 to rotate. The rotation of the fan 73 causes airflow, drawing in cool air from outside through the air inlet 75 and passing it through the interior of the housing, carrying away the heat generated by the transmission components. The hot air is then exhausted through the exhaust vent 76. In this way, hot air is continuously replaced by fresh cool air, achieving continuous heat dissipation. During the continuous operation of the fan 73, the internal temperature of the transmission gradually decreases, maintaining it within a suitable operating temperature range to prevent mechanical damage or performance degradation due to overheating. The cooling system operates continuously throughout the entire transmission operation process, with the fan 73 constantly circulating to draw in cool air and expel hot air, ensuring that the transmission temperature remains within a stable range during operation. This effectively reduces the operating temperature of the transmission, improves its efficiency and reliability, and thus guarantees its stable operation.
[0086] like Figure 1 and Figure 2As shown, in this embodiment, the support shell 72 is optimized to have a dustproof plate 8 on its outer side.
[0087] In this technical solution, the dustproof plate 8 acts as a physical barrier, effectively preventing external dust, sand, and other particles from entering the transmission housing, thus reducing their contamination of internal gears, lubricating oil, and other sensitive components. The design of the dustproof plate 8 allows the transmission to adapt to harsher working environments, improving its applicability. The relatively simple design of the dustproof plate 8 effectively reduces equipment failure rates, lowers maintenance costs, and improves the overall cost-effectiveness of the transmission.
[0088] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.
Claims
1. A transmission housing that is easy to install, characterized in that, include: The outer casing (1) contains the gearbox body (2); Mounting components (5) are provided on the left and right sides of the outer shell body (1) for fixing the outer shell body (1) in a designated position; The convenient component (3) is located inside the front side of the outer shell body (1) to protect the transmission body (2) inside the outer shell body (1) and to be easily opened when maintenance is required; The convenient component (3) includes: A protective door (31) is provided inside the front side of the outer shell body (1); A limiting groove (32) is provided inside the front side of the outer shell body (1), and the protective door (31) is located in the limiting groove (32). The limiting groove (32) restricts the position of the protective door (31). The placement slot (33) is located at the bottom inside the outer shell body (1). The placement slot (33) is connected to the limiting slot (32). After the protective door (31) is opened, it is placed into the placement slot (33) and the protective door (31) is pushed into the placement slot (33). The locking mechanism (4) is located inside the outer shell body (1) and cooperates with the protective door (31) to lock the protective door (31) in the limiting groove (32).
2. The easily installable transmission housing according to claim 1, characterized in that, The locking mechanism (4) includes: Through grooves (41) are provided on the upper and lower sides and the left and right ends of the protective door (31); A support plate (42) is provided on the upper and lower sides and the left and right ends inside the outer shell body (1), and the support plate (42) is located in the limiting groove (32); A locking block (43) is disposed on the front side of the support plate (42), and the locking block (43) passes through and extends out of the through slot (41). Guide plates (44) are provided on the upper and lower ends of the left and right sides of the front of the protective door (31); The card plate (45) is slidably disposed on the guide plate (44), and the card plate (45) is engaged with the locking block (43); A grip (46) is provided on the card plate (45).
3. The easily installable transmission housing according to claim 1, characterized in that, The installation component (5) includes: Mounting plates (51) are provided on the left and right sides of the outer shell body (1), and the mounting plates (51) are connected to the outer shell body (1) by bolts; Waist holes (52) are provided at the upper and lower ends of the mounting plate (51).
4. The easily installable transmission housing according to claim 1, characterized in that, The outer shell body (1) has heat dissipation holes (6) on both the front and rear sides. There are multiple heat dissipation holes (6) and they are evenly distributed along the length direction of the outer shell body (1).
5. A conveniently installed transmission housing according to claim 1, characterized in that, It also includes a heat dissipation mechanism (7), which includes: Mounting slots (71) are provided on the left and right sides of the outer shell body (1); A support shell (72) is disposed in the mounting groove (71); A fan (73) is disposed inside the support housing (72); A motor (74) is mounted on the support housing (72), and the output shaft of the motor (74) is connected to the fan (73); An air inlet (75) is located on the left side of the outer casing (1); An exhaust vent (76) is located on the right side of the outer casing (1), and the exhaust vent (76) is distributed opposite to the air inlet vent (75).
6. A conveniently installed transmission housing according to claim 5, characterized in that, The outer side of the support shell (72) is provided with a dustproof plate (8).
Citation Information
Patent Citations
Transmission shell facilitating dust prevention and heat dissipation
CN210770154U