Executor fireproof cover
By using a metal grid and limit ring structure in the actuator fireproof cover, combined with thermal expansion liquid drive, the problem of heat dissipation port sealing at high temperatures is solved, achieving effective heat dissipation and sealing in a fire environment, protecting equipment safety.
Patent Information
- Application Number
- CN202422218399.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-11
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-09-11
AI Technical Summary
In the existing actuator fireproof cover, the elasticity of the spring is reduced under high temperature environment for a long time, resulting in poor sealing effect of the heat dissipation port, affecting the heat dissipation effect and sealing.
A metal grid is used to block the entry of flames and high-temperature gases, and the ventilation cavity is connected to the air outlet cavity for heat dissipation. A limit ring is used to seal the ventilation cavity at high temperature, and the thermal expansion liquid drives the limit ring to move in the slot to ensure sealing.
It effectively blocks the entry of flames and high-temperature gases, ensures heat dissipation and keeps the interior of the cover sealed at high temperatures to prevent flames from damaging equipment.
Smart Images
Figure CN223360048U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fireproof covers, in particular to an actuator fireproof cover. Background Art
[0002] An actuator is usually an electric or pneumatic device used to control valves, pumps and other industrial equipment. The actuator converts electricity or compressed air into mechanical force, thereby changing the position of the valve or pump, thereby controlling the flow of fluid in the pipeline and achieving automatic control. The application range of actuators is very wide, including various industries such as petrochemicals, chemicals, electricity, water treatment, medicine and construction, especially playing an important role in automatic control.
[0003] Actuator fire covers are fire protection devices used to protect actuator equipment. They are commonly used in industries such as industry, construction, and power. Actuator fire covers can be divided into rigid fire covers and flexible fire covers according to their materials. When selecting and installing actuator fire covers, it is necessary to consider factors such as the specific working environment and temperature requirements of the equipment, as well as the size and shape of the fire cover to ensure its effectiveness and practicality.
[0004] In the existing technology, due to the large differences in the appearance of actuators, multiple fireproof pads are generally spliced together to wrap the actuator. In order to ensure the heat dissipation of the actuator during normal operation, heat dissipation holes are usually opened on the surface of a single or multiple protective pads, and the heat dissipation holes are sealed by combining thermal expansion materials and springs. However, when in a fire area for a long time, even if the temperature does not reach the high temperature resistance limit of the spring, if the high temperature lasts too long, it may cause the elasticity of the spring to gradually decrease, thereby affecting the sealing effect of the heat dissipation hole. Summary of the Invention
[0005] The purpose of the utility model is to provide an actuator fireproof cover, which can block flames and high-temperature gases from entering the cover body through the metal grid inside the ventilation cavity, and can discharge the hot air flow inside the cover body to achieve normal heat dissipation inside the cover body. After the limit ring enters the slot, the ventilation cavity can be sealed to ensure the sealing of the inside of the cover body, so as to solve the problems raised in the above-mentioned background technology.
[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: an actuator fireproof cover, comprising a cover body and two fixing plates fixedly mounted on the front and rear sides of the cover body, wherein the interior and surface of the two fixing plates are jointly provided with a heat dissipation component, and the heat dissipation component includes a plurality of fixing claws fixedly connected to the sides of the two fixing plates away from each other;
[0007] The multiple fixed claws are divided into two groups, and the two groups of fixed claws are respectively fixedly connected to the outer sides of the two baffles. A ventilation cavity is opened inside the two fixed plates, and a card slot is opened on the opposite sides of the two baffles. A movable groove is opened inside the two ventilation cavities, and the interiors of the two movable grooves are slidably connected with limiting rings. The two limiting rings are moved away from each other and are respectively inserted into the two card slots. An air outlet cavity is opened between the two fixed plates and the baffles, and a metal grid is fixedly installed inside the two ventilation cavities.
[0008] Preferably, the cover body is formed by splicing a plurality of flexible fireproof pads, and the fixing plate is made of a rigid material.
[0009] Preferably, the shape of the slot matches the shape of the limiting ring, and the ventilation cavity is connected to the air outlet cavity.
[0010] Preferably, a blocking component is commonly provided inside the two fixing plates, and the blocking component includes four receiving cavities opened inside the two fixing plates.
[0011] Preferably, the two receiving cavities are respectively located at the upper and lower sides of the limiting ring, and thermal expansion liquid is provided inside the receiving cavities.
[0012] Preferably, the interiors of the four storage cavities are all slidably connected with push blocks, the opposite surfaces of the corresponding two push blocks are fixedly connected with extrusion blocks, and the interiors of the two fixed plates are provided with limiting grooves, the four limiting grooves are respectively connected to the four storage cavities, and the corresponding two limiting grooves are connected to the same movable groove.
[0013] Preferably, the four extrusion blocks are slidably connected in the four limiting grooves respectively, and after the corresponding two extrusion blocks move, they are extruded and contacted with the side of the same limiting ring close to the metal grid.
[0014] Preferably, the opposite surfaces of the two limiting rings are each provided with a plurality of grooves, the interiors of the plurality of grooves are each fixedly connected with a return spring, and the other end of the return spring is fixedly connected to the interior of the movable slot.
[0015] Compared with the prior art, the beneficial effects of the present invention are:
[0016] 1. The metal grid blocks the flame and high-temperature gas from entering the cover, while the ventilation cavity is connected to the air outlet cavity. The metal grid inside the ventilation cavity can be used to block the flame and high-temperature gas from entering, and can discharge the hot air inside the cover, thereby achieving normal heat dissipation inside the cover. After the limit ring enters the slot, it can block the ventilation cavity to ensure the sealing inside the cover.
[0017] 2. The displacement of the limit ring is controlled by detecting the temperature outside the cover. When the temperature outside the cover rises suddenly, the limit ring is used to block the air outlet cavity and the ventilation cavity. Since the limit ring is pushed into the slot after the temperature outside the cover rises, the limit ring is driven to block the air outlet cavity and the ventilation cavity, effectively preventing flames from entering the cover during a fire and causing damage to the protected equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0019] Figure 1 This is the overall structural view of the utility model;
[0020] Figure 2 This is a schematic diagram of a half-section structure of the present utility model;
[0021] Figure 3 This is a schematic diagram of a half-section structure of the fixing plate of the present invention;
[0022] Figure 4 This is a schematic diagram of a half-section structure of the baffle of the present invention;
[0023] Figure 5 This is a schematic diagram of a half-section structure of the limit ring of the present utility model;
[0024] Figure 6 This is a schematic diagram of the half-section structure of the push block of the utility model.
[0025] Description of reference numerals:
[0026] 1. Cover body; 2. Fixing plate; 3. Heat dissipation component; 31. Fixing claw; 32. Baffle; 33. Card slot; 34. Ventilation cavity; 35. Movable slot; 36. Limiting ring; 37. Air outlet cavity; 38. Metal grid; 4. Blocking component; 41. Storage cavity; 42. Push block; 43. Extrusion block; 44. Limiting slot; 45. Groove; 46. Return spring. DETAILED DESCRIPTION
[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0028] The utility model provides a technical solution:
[0029] See also Figures 1 to 5 An actuator fireproof cover includes a cover body 1 and two fixing plates 2 fixedly mounted on the front and rear sides of the cover body 1. The interior and surface of the two fixing plates 2 are commonly provided with a heat dissipation component 3. The heat dissipation component 3 includes a plurality of fixing claws 31 fixedly connected to the sides of the two fixing plates 2 away from each other.
[0030] Multiple fixing claws 31 are divided into two groups, and the two groups of fixing claws 31 are respectively fixedly connected to the outer sides of the two baffles 32. A ventilation cavity 34 is provided inside the two fixing plates 2, and a card slot 33 is provided on the opposite surfaces of the two baffles 32. A movable groove 35 is provided inside the two ventilation cavities 34. The interiors of the two movable grooves 35 are slidably connected with limit rings 36. The two limit rings 36 are moved away from each other and are respectively inserted into the two card slots 33. An air outlet cavity 37 is provided between the two fixing plates 2 and the baffles 32, and a metal grid 38 is fixedly installed inside the two ventilation cavities 34.
[0031] The cover body 1 is made of multiple flexible fireproof pads, and the fixing plate 2 is made of rigid material.
[0032] The shape of the slot 33 matches that of the limiting ring 36 , and the ventilation cavity 34 is connected to the air outlet cavity 37 .
[0033] The hood 32 is secured to the outside by the cam 36 and the cam 37 is engaged with the outside of the hood 32. The cam 36 is engaged with the outside of the hood 32 and the cam 37 is engaged with the outside of the hood 32.
[0034] Specifically, such as Figures 4 to 6 As shown, a blocking component 4 is commonly provided inside the two fixing plates 2 , and the blocking component 4 includes four receiving cavities 41 opened inside the two fixing plates 2 .
[0035] The two receiving cavities 41 are respectively located at the upper and lower sides of the limiting ring 36 , and thermal expansion liquid is provided inside each of the receiving cavities 41 .
[0036] The interiors of the four storage cavities 41 are all slidably connected with push blocks 42, and the opposite surfaces of the corresponding two push blocks 42 are fixedly connected with extrusion blocks 43. The interiors of the two fixed plates 2 are provided with limiting grooves 44, and the four limiting grooves 44 are respectively connected to the four storage cavities 41, and the corresponding two limiting grooves 44 are connected to the same movable groove 35.
[0037] The four extrusion blocks 43 are slidably connected in the four limiting grooves 44 , respectively. After the corresponding two extrusion blocks 43 move, they are pressed into contact with the side of the same limiting ring 36 close to the metal grid 38 .
[0038] A plurality of grooves 45 are formed on the opposite surfaces of the two limiting rings 36 . Return springs 46 are fixedly connected inside the plurality of grooves 45 , and the other ends of the return springs 46 are fixedly connected inside the moving slot 35 .
[0039] By adopting the above technical solution, first, when a fire occurs, the temperature outside the cover body 1 will gradually rise, and the thermal expansion liquid set in the storage chamber 41 will begin to expand after the temperature rises. After the thermal expansion liquid expands, it will push the push block 42 inside the storage chamber 41, and the extrusion block 43 fixed to the push block 42 will also move inside the limiting groove 44. When the extrusion block 43 contacts the limiting ring 36, the extrusion block 43 continues to move, so that the extrusion block 43 pushes the limiting ring 36, and the limiting ring 36 is in the After the movable groove 35 moves inside, it will eventually be inserted into the card slot 33. After the temperature outside the cover body 1 drops, the thermal expansion liquid gradually shrinks. At this time, the limit ring 36 will be gradually reset by the reset spring 46 inside the groove 45, so that the air outlet chamber 37 and the ventilation chamber 34 are reconnected. Since the limit ring 36 is pushed into the card slot 33 after the temperature outside the cover body 1 rises, the limit ring 36 is driven to seal the air outlet chamber 37 and the ventilation chamber 34, effectively preventing the flames from entering the cover body 1 during a fire and causing damage to the protected instrument.
[0040] Working principle: First, after the cover body 1 is spliced, the fixing plate 2 fixes the same baffle 32 through multiple fixing claws 31, so that there is an air outlet cavity 37 between the baffle 32 and the fixing plate 2. Since the air outlet cavity 37 is connected with the ventilation cavity 34, the internal metal grid 38 of the ventilation cavity 34 is set at the high temperature and fire-resistant metal grid 38, which can effectively block the entry of flames and high-temperature gases, while allowing hot air to be discharged. When a fire occurs, the temperature outside the cover body 1 will gradually rise, and the thermal expansion liquid set inside the storage cavity 41 will begin to expand after the temperature rises, and the thermal expansion liquid will expand the storage cavity 41. 1 pushes, and the extrusion block 43 fixed with the pushing block 42 will also move inside the limiting groove 44. When the extrusion block 43 contacts the limiting ring 36, the extrusion block 43 continues to move, so that the extrusion block 43 pushes the limiting ring 36. After the limiting ring 36 moves inside the moving groove 35, it will eventually be inserted into the card groove 33 and the air outlet cavity 37 and the ventilation cavity 34 will be separated by the limiting groove 44. After the temperature outside the cover body 1 drops, the thermal expansion liquid gradually shrinks. At this time, the limiting ring 36 will be gradually reset by the reset spring 46 inside the groove 45, so that the air outlet cavity 37 and the ventilation cavity 34 are connected again.
[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.
Claims
1. An actuator fireproof cover, comprising a cover body (1) and two fixing plates (2) fixedly mounted on the front and rear sides of the cover body (1), characterized in that: A heat dissipation component (3) is commonly provided inside and on the surface of the two fixing plates (2), and the heat dissipation component (3) comprises a plurality of fixing claws (31) fixedly connected to the sides of the two fixing plates (2) that are away from each other; The plurality of fixed claws (31) are divided into two groups. The two groups of fixed claws (31) are respectively fixedly connected to the outsides of the two baffles (32). A ventilation cavity (34) is provided inside the two fixed plates (2). A card slot (33) is provided on the opposite surfaces of the two baffles (32). A movable groove (35) is provided inside the two ventilation cavities (34). The interiors of the two movable grooves (35) are slidably connected to limit rings (36). The two limit rings (36) are respectively inserted into the two card slots (33) after moving away from each other. An air outlet cavity (37) is provided between the two fixed plates (2) and the baffle (32). A metal grid (38) is fixedly installed inside the two ventilation cavities (34).
2. The actuator fireproof cover according to claim 1, characterized in that: The cover body (1) is formed by splicing a plurality of flexible fireproof pads, and the fixing plate (2) is made of a rigid material.
3. The actuator fireproof cover according to claim 1, characterized in that: The shape of the clamping groove (33) is adapted to the shape of the limiting ring (36), and the ventilation cavity (34) is communicated with the air outlet cavity (37).
4. The actuator fireproof cover according to claim 1, characterized in that: A blocking component (4) is commonly provided inside the two fixing plates (2), and the blocking component (4) comprises four receiving cavities (41) opened inside the two fixing plates (2).
5. The actuator fireproof cover according to claim 4, characterized in that: The two receiving cavities (41) are respectively located on the upper and lower sides of the limiting ring (36), and thermal expansion liquid is provided inside the receiving cavities (41).
6. The actuator fireproof cover according to claim 5, characterized in that: The interiors of the four receiving cavities (41) are all slidably connected to push blocks (42), and the opposite surfaces of the corresponding two push blocks (42) are fixedly connected to extrusion blocks (43). The interiors of the two fixed plates (2) are each provided with a limiting groove (44), and the four limiting grooves (44) are respectively connected to the four receiving cavities (41), and the corresponding two limiting grooves (44) are connected to the same movable groove (35).
7. The actuator fireproof cover according to claim 6, characterized in that: The four extrusion blocks (43) are respectively slidably connected in the four limiting grooves (44), and after the corresponding two extrusion blocks (43) move, they are in extrusion contact with the side of the same limiting ring (36) close to the metal grid (38).
8. The actuator fireproof cover according to claim 1, characterized in that: The opposing surfaces of the two limiting rings (36) are each provided with a plurality of grooves (45), the interiors of the plurality of grooves (45) are each fixedly connected with a return spring (46), and the other end of the return spring (46) is fixedly connected to the interior of the movable groove (35).