Waterproof explosion venting hinge
By setting a sealing cover, felt ring and waterproof sealing ring on the blade shaft of the hinge, the rust and corrosion problems caused by chemical corrosion in chemical production are solved, and the effect of waterproofing and easy opening and closing is achieved.
Patent Information
- Application Number
- CN202421844242.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-01
- Publication Date
- 2025-06-03
- Estimated Expiration
- 2034-08-01
AI Technical Summary
During chemical production, chemical erosion causes rust and corrosion of the hinges, resulting in the failure of equipment doors and windows to open and close normally.
A waterproof explosion-proof hinge is designed. By setting a sealing cover, felt ring and waterproof sealing ring on the blade shaft, a sealing space is formed to prevent external water vapor from entering and protect the hinge.
It effectively prevents water vapor from entering the hinge, reduces friction and noise, and makes the doors and windows of the equipment easier to open and close.
Smart Images
Figure CN222936586U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of waterproof hinges, and particularly relates to a waterproof and explosion-proof hinge. Background Art
[0002] A hinge is a mechanical device used to connect two solids and allow relative rotation between them. A hinge can be composed of movable components or foldable materials. Classified by material, it is mainly divided into stainless steel hinges and iron hinges; to provide people with a better experience, hydraulic hinges (also known as damping hinges) have emerged, which are characterized by a buffering function when the cabinet door is closed, minimizing the noise generated when the cabinet door collides with the cabinet body when closing.
[0003] However, there are some problems in the prior art: during the chemical production process, many equipment and pipelines need to withstand the erosion of chemicals. When the liquid containing chemicals enters the hinge, it will cause rust and corrosion of the hinge, resulting in damage to the doors and windows of the equipment and inability to open and close normally. Therefore, we propose a waterproof and explosion-proof hinge. Summary of the Utility Model
[0004] Aiming at the problems existing in the prior art, the purpose of the utility model is to provide a waterproof and explosion-proof hinge. By setting a sealing cover on the blade shaft, a sealed space is formed by the sealing cover and the base, and a felt ring and a waterproof sealing ring are set on the sealing cover to prevent external water vapor from entering the hinge and causing damage.
[0005] The utility model is realized as follows: a waterproof and explosion-proof hinge includes a base and a blade shaft. The base is inserted into the blade shaft. A bottom plate is arranged on the base, and a connecting plate is arranged on the blade shaft. Connecting holes are formed on both the bottom plate and the connecting plate. A reinforcing rib is arranged between the blade shaft and the connecting plate, and the reinforcing rib is used to strengthen the connection strength between the blade shaft and the connecting plate. An oil cup is arranged on the base, and an inner cavity is formed inside the base. A sealing component is arranged between the base and the blade shaft, and a pressure component is arranged between the blade shaft and the sealing component.
[0006] Optionally, a thrust ball bearing is sleeved on the blade shaft, a sleeve is sleeved on the blade shaft, and a self-aligning ball bearing is sleeved on the blade shaft. The thrust ball bearing, the sleeve, and the self-aligning ball bearing are connected in sequence.
[0007] Optionally, the blade shaft is inserted into the inner cavity. A support seat is fixedly connected to the bottom of the inner cavity. The thrust ball bearing, the sleeve, and the self-aligning ball bearing are located in the inner cavity. The thrust ball bearing contacts the support seat, and the oil cup is located above the self-aligning ball bearing.
[0008] Optionally, the sealing assembly includes a sealing cover which is slidably connected to the blade shaft. A toothed block is provided on the sealing cover, and a toothed groove is formed on the base. The toothed block meshes with the toothed groove. A felt ring is sleeved on the sealing cover, and the felt ring contacts the inner cavity. A waterproof sealing ring is provided on the sealing cover, and the waterproof sealing ring contacts the blade shaft.
[0009] Optionally, the pressure assembly includes a steel ball, a spring and a compression bolt. A limiting hole is formed on the sealing cover, and an adjusting hole is formed on the blade shaft. The spring is located in the adjusting hole. One end of the spring is fixedly connected to the steel ball, and the other end of the spring is fixedly connected to the compression bolt. The steel ball contacts the adjusting hole, and the compression bolt is threadedly connected to the limiting hole.
[0010] Optionally, the compression bolt is correspondingly arranged with the adjusting hole, and an internal hexagonal hole is formed on the compression bolt.
[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0012] 1. By providing a sealing cover on the blade shaft, a toothed block on the sealing cover, and a toothed groove corresponding to the toothed block on the base, the sealing cover and the base can be stably buckled through meshing. A felt ring is provided at the lower end of the sealing cover, and a waterproof sealing ring is provided at the connection between the sealing cover and the blade shaft, preventing external water vapor from entering the hinge and causing damage, and reducing friction and noise.
[0013] 2. A pressure assembly is provided between the sealing ring and the blade shaft. By rotating the compression bolt, the pressure of the compression bolt on the spring can be adjusted, increasing or decreasing the elastic force of the spring, making the pressure of the steel ball on the adjusting hole adjustable, thereby increasing or decreasing the rotation resistance of the hinge, making the doors and windows of the device more convenient to open and close.
[0014] Other features and advantages of the present utility model will become clear through the following detailed description of the exemplary embodiments of the present utility model with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 is the overall structural schematic diagram provided by the present utility model;
[0016] Figure 2 is the inner cavity structural schematic diagram provided by the present utility model;
[0017] Figure 3 is the sealing assembly structural schematic diagram provided by the present utility model;
[0018] Figure 4 is Figure 3 the enlarged schematic diagram of part A of
[0019] In the figure: 1. Base; 11. Blade shaft; 12. Bottom plate; 13. Connecting plate; 14. Connecting hole; 15. Reinforcing rib; 16. Oil cup; 2. Inner cavity; 21. Support seat; 22. Thrust ball bearing; 23. Sleeve; 24. Self-aligning ball bearing; 3. Sealing assembly; 31. Sealing cover; 32. Tooth block; 33. Tooth groove; 34. Felt ring; 35. Waterproof sealing ring; 4. Pressure assembly; 41. Steel ball; 42. Limit hole; 43. Adjusting hole; 44. Spring; 45. Compression bolt; 46. Hexagon socket head hole. Detailed implementation manners
[0020] To further understand the content, features and effects of the present utility model, the following embodiments are exemplified and described in detail in conjunction with the accompanying drawings.
[0021] As Figures 1 to 4 shown, a waterproof and explosion-proof hinge provided by an embodiment of the present utility model includes a base 1 and a blade shaft 11. The base 1 is inserted into the blade shaft 11. A bottom plate 12 is provided on the base 1, and a connecting plate 13 is provided on the blade shaft 11. Connecting holes 14 are formed on both the bottom plate 12 and the connecting plate 13. A reinforcing rib 15 is provided between the blade shaft 11 and the connecting plate 13. The reinforcing rib 15 is used to strengthen the connection strength between the blade shaft 11 and the connecting plate 13. An oil cup 16 is provided on the base 1. An inner cavity 2 is formed inside the base 1. A sealing assembly 3 is provided between the base 1 and the blade shaft 11, and a pressure assembly 4 is provided between the blade shaft 11 and the sealing assembly 3.
[0022] Further, during use, first pass a screw through the connecting hole 14 on the bottom plate 12 to fix the base 1 on the device. Then, after fixing the base 1 to the doors and windows through the connecting plate 13, connect the blade shaft 11 with the sealing assembly 3. Finally, insert the blade shaft 11 into the inner cavity 2 of the base 1 for connection, and rotation can be achieved.
[0023] It should be noted that since the blade shaft 11 and the connecting plate 13 are used to carry the doors and windows, the torque received by the blade shaft 11 and the connecting plate 13 is relatively large. Therefore, a reinforcing rib 15 is provided between the blade shaft 11 and the connecting plate 13 to strengthen the connection strength between the blade shaft 11 and the connecting plate 13, and different blade shafts 11 can be selected according to the use environment to adapt to doors and windows of more weights.
[0024] Specifically, a thrust ball bearing 22 is sleeved on the blade shaft 11, a sleeve 23 is sleeved on the blade shaft 11, and a self-aligning ball bearing 24 is sleeved on the blade shaft 11. The thrust ball bearing 22, the sleeve 23 and the self-aligning ball bearing 24 are connected in sequence;
[0025] Specifically, the blade shaft 11 is inserted into the inner cavity 2. A support seat 21 is fixedly connected to the bottom of the inner cavity 2. A thrust ball bearing 22, a sleeve 23, and a self-aligning ball bearing 24 are located in the inner cavity 2. The thrust ball bearing 22 contacts the support seat 21. The oil cup 16 is located above the self-aligning ball bearing 24.
[0026] Further, during installation, since the blade shaft 11 bears a relatively large mass, in order for the blade shaft 11 to rotate stably, axial and radial bearings are provided between the blade shaft 11 and the inner cavity 2. A support seat 21 for support is provided at the bottom of the inner cavity 2. A thrust ball bearing 22, a sleeve 23, and a self-aligning ball bearing 24 are sleeved on the blade shaft 11 from bottom to top in sequence. The thrust ball bearing 22 is mainly used to bear the axial force of the blade shaft 11 and support the weight of the blade shaft 11. The sleeve 23 is used to separate the two bearings. The self-aligning ball bearing 24 is used to support the radial force of the blade shaft 11, so that the blade shaft 11 can rotate stably without swaying left and right.
[0027] Specifically, the sealing assembly 3 includes a sealing cover 31. The sealing cover 31 is slidably connected to the blade shaft 11. A tooth block 32 is provided on the sealing cover 31. A tooth groove 33 is formed on the base 1. The tooth block 32 meshes with the tooth groove 33. A felt ring 34 is sleeved on the sealing cover 31. The felt ring 34 contacts the inner cavity 2. A waterproof sealing ring 35 is provided on the sealing cover 31. The waterproof sealing ring 35 contacts the blade shaft 11.
[0028] Further, by providing a sealing cover 31 on the blade shaft 11, a tooth block 32 on the sealing cover 31, and a tooth groove 33 corresponding to the tooth block 32 on the base 1, the sealing cover 31 and the base 1 can be stably buckled through meshing. And a felt ring 34 is provided at the lower end of the sealing cover 31, and a waterproof sealing ring 35 is provided at the connection between the sealing cover 31 and the blade shaft 11 to prevent external water vapor from entering the hinge and causing damage, and can reduce friction and noise.
[0029] Specifically, the pressure assembly 4 includes a steel ball 41, a spring 44, and a compression bolt 45. A limit hole 42 is formed on the sealing cover 31. An adjustment hole 43 is formed on the blade shaft 11. The spring 44 is located in the adjustment hole 43. One end of the spring 44 is fixedly connected to the steel ball 41. The other end of the spring 44 is fixedly connected to the compression bolt 45. The steel ball 41 contacts the adjustment hole 43. The compression bolt 45 is threadedly connected to the limit hole 42. The compression bolt 45 is correspondingly arranged with the adjustment hole 43. An internal hexagonal hole 46 is formed on the compression bolt 45.
[0030] Further, during use, the compression bolt 45 is rotated through the internal hexagonal hole 46 to adjust the pressure of the compression bolt 45 on the spring 44, increase or decrease the elastic force of the spring 44, so that the pressure of the steel ball 41 on the adjustment hole 43 is adjustable, thereby increasing or decreasing the rotation resistance of the hinge and making the doors and windows of the device more convenient to open and close.
[0031] Working principle: During installation, first install the pressure component 4 in the limit hole 42 of the sealing cover 31, then put the sealing cover 31 on the vane shaft 11, align the steel ball 41 with the adjustment hole 43, and then successively sleeved the self-aligning ball bearing 24, the sleeve 23 and the thrust ball bearing 22 on the vane shaft 11. Then insert the vane shaft 11 into the inner cavity 2 of the base 1, lubricate the bearings through the oil cup 16, and engage and fasten the sealing cover 31 and the base 1 through the tooth block 32 and the tooth groove 33. Since the size of the felt ring 34 is larger than the inner cavity 2, the felt ring 34 can provide good waterproof sealing.
[0032] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A waterproof explosion-proof hinge, comprising a base (1) and a blade shaft (11), characterized in that: The base (1) is plugged into the blade shaft (11); a bottom plate (12) is provided on the base (1); a connecting plate (13) is provided on the blade shaft (11); connecting holes (14) are provided on the bottom plate (12) and the connecting plate (13); reinforcing ribs (15) are provided between the blade shaft (11) and the connecting plate (13); the reinforcing ribs (15) are used to strengthen the connection strength between the blade shaft (11) and the connecting plate (13); an oil cup (16) is provided on the base (1); an inner cavity (2) is formed inside the base (1); a sealing assembly (3) is provided between the base (1) and the blade shaft (11); and a pressure assembly (4) is provided between the blade shaft (11) and the sealing assembly (3).
2. The waterproof explosion-proof hinge according to claim 1, characterized in that: The blade shaft (11) is sleeved with a thrust ball bearing (22), the blade shaft (11) is sleeved with a sleeve (23), the blade shaft (11) is sleeved with a self-aligning ball bearing (24), and the thrust ball bearing (22), the sleeve (23) and the self-aligning ball bearing (24) are connected in sequence.
3. The waterproof explosion-proof hinge according to claim 2, characterized in that: The blade shaft (11) is plugged into the inner cavity (2); a support seat (21) is fixedly connected to the bottom of the inner cavity (2); the thrust ball bearing (22), the sleeve (23) and the self-aligning ball bearing (24) are located in the inner cavity (2); the thrust ball bearing (22) is in contact with the support seat (21); and the oil cup (16) is located above the self-aligning ball bearing (24).
4. The waterproof explosion-proof hinge according to claim 1, characterized in that: The sealing assembly (3) comprises a sealing cover (31), the sealing cover (31) is slidably connected to the blade shaft (11), a tooth block (32) is arranged on the sealing cover (31), a tooth groove (33) is provided on the base (1), the tooth block (32) is meshed with the tooth groove (33), a felt ring (34) is sleeved on the sealing cover (31), the felt ring (34) is in contact with the inner cavity (2), and a waterproof sealing ring (35) is arranged on the sealing cover (31), and the waterproof sealing ring (35) is in contact with the blade shaft (11).
5. The waterproof explosion-proof hinge according to claim 4, characterized in that: The pressure assembly (4) comprises a steel ball (41), a spring (44) and a clamping bolt (45); a limiting hole (42) is provided on the sealing cover (31); an adjusting hole (43) is provided on the blade shaft (11); the spring (44) is located in the adjusting hole (43); one end of the spring (44) is fixedly connected to the steel ball (41); the other end of the spring (44) is fixedly connected to the clamping bolt (45); the steel ball (41) is in contact with the adjusting hole (43); and the clamping bolt (45) is connected to the limiting hole (42) by a thread.
6. The waterproof explosion-relief hinge according to claim 5, characterized in that: The clamping bolt (45) is arranged corresponding to the adjustment hole (43), and a hexagonal hole (46) is formed on the clamping bolt (45).