Leak-proof thermostat
By designing structures such as shrinking top disk, shrinking chassis, lifting plate and auxiliary reset mechanism in the thermostat, the expansion and contraction of paraffin control the flow of coolant into the radiator, the existing thermostat slow shutdown speed and leakage problems are solved. Faster closing and better sealing are achieved.
Patent Information
- Application Number
- CN202420085686.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-12
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-01-12
AI Technical Summary
The existing thermostats have slow melting and solidification speed due to the slow melting and solidification of paraffin, and the frequent expansion can easily lead to wear, reset deformation of the storage tube, damage to the sealing property, and lead to coolant leakage.
A leak-proof thermostat was designed, adopting structures such as shrinking top plate, shrinking chassis, lifting plate, corrugated tube, auxiliary reset mechanism and liquid leakage hole. The expansion and contraction of exquisite paraffin drives the lifting plate to move through liquid leakage The holes and plugs control the flow of coolant into the radiator, and the auxiliary reset mechanism accelerates the paraffin solidification and contraction process to ensure sealing state.
It effectively speeds up the closing speed of the thermostat, avoids coolant leakage, improves sealing, and extends the service life of the thermostat.
Smart Images
Figure CN222276784U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to automobile accessories, in particular to a leakage-proof thermostat. Background Art
[0002] The car thermostat is a valve that controls the flow path of the engine coolant. The product automatically adjusts the amount of water entering the radiator according to the cooling water temperature to ensure that the engine operates within the appropriate temperature range, which can save energy.
[0003] The thermostats commonly used in the market are mainly wax thermostats, which use the principle of thermal expansion and contraction to control the circulation of coolant through the refined paraffin inside. When the cooling temperature is lower than the specified value, the refined paraffin inside the thermostat temperature sensor is solid, the thermostat is in a closed state, and the coolant returns to the engine through the water pump to perform a small circulation inside the engine; when the coolant temperature reaches the specified value, the paraffin begins to melt and gradually turns into liquid, and the volume increases and compresses the storage tube to make it contract, thereby exerting force on the push rod to open the valve.
[0004] From the above content, it can be seen that the thermostat relies on the melting and solidification of paraffin to change the opening and closing state. Since the melting and solidification speed of paraffin is slow, the closing speed of the thermostat is relatively slow. After frequent expansion of paraffin, it is easy to cause wear of the storage tube and slow down the reset deformation speed, thereby destroying the sealing of the thermostat and the coolant is easy to leak through the water inlet pipe. Utility Model Content
[0005] The utility model provides a leakage-proof thermostat, which solves the above-mentioned problems existing in the use process of the prior art.
[0006] The technical solution of the utility model is achieved as follows: a leakage-proof thermostat comprises a shrinkage top plate, a shrinkage bottom plate is arranged below the shrinkage top plate, a lifting plate is arranged at the upper end of the shrinkage bottom plate, the upper end of the lifting plate is fixedly connected with a bellows, the upper end of the bellows is fixedly connected to the shrinkage top plate, the upper end of the lifting plate is symmetrically provided with an auxiliary reset mechanism, the lower end of the shrinkage top plate is symmetrically provided with a support frame, the auxiliary reset mechanism is slidably connected to the support frame, the shrinkage top plate is provided with a plurality of leakage holes around the support frame, the lower end of the lifting plate is fixedly connected with a connecting rod, the connecting rod passes through and is slidably connected to the shrinkage bottom plate, the lower end of the connecting rod is fixedly connected with a force-bearing section, the lower end of the connecting rod is provided with a storage tube, the force-bearing section is slidably connected in the storage tube, and the lower end of the storage tube is fixedly connected with a fixing piece.
[0007] The utility model is further configured as follows: the auxiliary reset mechanism includes a support rod, a sliding plate and a tension spring, the support rod is fixedly connected to the upper end surface of the lifting plate, the upper end of the support rod penetrates and extends into the support frame, the sliding plate is fixedly connected to the upper end of the support rod, the sliding plate is slidably connected to the inner side wall of the support frame, and the tension spring is fixedly connected between the lower end surface of the sliding plate and the support frame.
[0008] The utility model is further configured as follows: limiting grooves are symmetrically provided on the inner walls on both sides of the support frame, and the two ends of the sliding plate are slidably connected in the limiting grooves.
[0009] The utility model is further configured as follows: at least two blocking rods are fixedly connected to the lower end of the lifting plate, a plurality of corresponding blocking holes are penetrated through the shrinkage chassis, the blocking rods are slidably connected in the blocking holes, and a first liquid leakage rod is fixedly connected to the lower end of the blocking rod, and the diameter of the first liquid leakage rod is smaller than the blocking rod.
[0010] The utility model is further configured as follows: the lower end of the connecting rod is fixedly connected to a second leakage rod, the diameter of the second leakage rod is smaller than the connecting rod, the height of the second leakage rod is flush with the first leakage rod, the lower end of the second leakage rod is fixedly connected to a connecting plate, and the force-bearing section is fixedly connected to the lower end of the connecting plate.
[0011] The utility model is further configured as follows: a plurality of limiting columns are fixedly connected to the lower end surface of the shrinkage chassis, and the upper end of the connecting plate abuts against the lower end of the limiting column.
[0012] The utility model is further configured as follows: a plurality of liquid leakage lines are provided on the lower end surface of the lifting plate.
[0013] In summary, the beneficial effects of the utility model are:
[0014] When the cooling temperature rises, the refined paraffin melts and expands in volume, which will generate an upward reverse thrust, thereby driving the lifting plate to move upward, causing the connecting rod at the lower end of the lifting plate to detach from the shrinkage chassis, and the coolant flows into the radiator through the gap created after the coolant detaches from the connecting rod. When the coolant temperature drops and the refined paraffin solidifies and shrinks, the auxiliary reset mechanism assists the lifting plate to move downward, thereby accelerating the process of solidification and shrinkage of the refined paraffin, and closing the thermostat and putting it in a sealed state to avoid losses caused by coolant leakage. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0017] Figure 2 for Figure 1 Schematic diagram of the structure after removing the shrink top plate and shrink bottom plate;
[0018] Figure 3 for Figure 2 A schematic diagram of a top view structure;
[0019] Figure 4 It is a schematic diagram of the structure of the retractable top plate in the utility model;
[0020] Figure 5 It is a structural schematic diagram of the retractable chassis in the utility model;
[0021] Figure 6 This is a schematic diagram of the installation of the utility model in a circulating heat dissipation system.
[0022] Numbers in the figure: 1 shrink top plate, 11 support frame, 12 limit groove, 13 leakage hole, 2 shrink bottom plate, 21 blocking hole, 22 limit column, 3 lifting plate, 31 bellows, 32 connecting rod, 33 force section, 34 blocking rod, 35 first leakage rod, 36 second leakage rod, 37 connecting plate, 38 leakage pattern, 4 storage tube, 41 fixing part, 51 support rod, 52 sliding plate, 53 tension spring. DETAILED DESCRIPTION
[0023] The following will be combined with the attached embodiment of the utility model Figure 1-6 , clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0024] Example:
[0025] like Figures 1 to 6As shown, the utility model discloses a leakage-proof thermostat, including a shrinking top plate 1, and a shrinking bottom plate 2 is arranged below the shrinking top plate 1. Among them, a lifting plate 3 is arranged at the upper end of the shrinking bottom plate 2, and a bellows 31 is fixedly connected to the upper end of the lifting plate 3, and the upper end of the bellows 31 is fixedly connected to the shrinking top plate 1. Further, an auxiliary reset mechanism is symmetrically arranged at the upper end of the lifting plate 3, and a support frame 11 is symmetrically arranged at the lower end of the shrinking top plate 1, and the auxiliary reset mechanism is slidably connected to the support frame 11, and the shrinking top plate 1 is provided with a plurality of leakage holes 13 around the support frame 11. In addition, a connecting rod 32 is fixedly connected to the lower end of the lifting plate 3, and the connecting rod 32 passes through and is slidably connected to the shrinking bottom plate 1, and a force-bearing section 33 is fixedly connected to the lower end of the connecting rod 32. Furthermore, a storage tube 4 is provided at the lower end of the connecting rod, and the force section 33 is slidably connected in the storage tube 4, and the storage tube 4 is filled with refined paraffin, and the lower end of the storage tube 4 is fixedly connected with a fixing member 41, and the storage tube 4 is fixedly connected to the inner wall of the pipeline of the circulation system by the fixing member 41, and the outer diameter of the storage tube 4 and the width of the fixing member 41 are both smaller than the inner diameter of the pipeline of the circulation system. It should be noted here that the material of the storage tube should be a hard material such as a metal alloy, so as to limit the refined paraffin so that it can only expand upward.
[0026] The auxiliary reset mechanism includes a support rod 51, a sliding plate 52 and a tension spring 53. The specific structure of the auxiliary reset mechanism is as follows: the support rod 51 is fixedly connected to the upper end surface of the lifting plate 3, and the upper end of the support rod 51 penetrates and extends into the support frame 11, the sliding plate 52 is fixedly connected to the upper end of the support rod 51, and the sliding plate 52 is slidably connected to the inner side wall of the support frame 11, and the tension spring 53 is fixedly connected between the lower end surface of the sliding plate 52 and the support frame 11.
[0027] Furthermore, the inner walls on both sides of the support frame 11 are symmetrically provided with limit grooves 12, and the two ends of the sliding plate 52 are slidably connected in the limit grooves 12. Furthermore, at least two blocking rods 34 are fixedly connected to the lower end of the lifting plate 3, and a plurality of blocking holes 21 having the same diameter as the blocking rods 34 are penetrated and opened on the shrinking chassis 2, and the blocking rods 34 are slidably connected in the blocking holes 21, and the lower end of the blocking rod 34 is fixedly connected with a first leakage rod 35, and the diameter of the first leakage rod 35 should be as small as possible.
[0028] In addition, the lower end of the connecting rod 32 is fixedly connected to a second leakage rod 36, the diameter of the second leakage rod 36 is smaller than the connecting rod 32, the height of the second leakage rod 36 is flush with the first leakage rod 35, the lower end of the second leakage rod 36 is fixedly connected to a connecting plate 37, and the force-bearing section 33 is fixedly connected to the lower end of the connecting plate 37.
[0029] When the cooling temperature rises, the refined paraffin in the storage tube 4 melts and increases in volume, causing the refined paraffin to expand upward and give a reverse thrust to the force-bearing section 33, so that the lifting plate 3 compresses the bellows 31 upward, causing the connecting rod 32 to detach from the shrinking chassis 2, and allowing the second leakage rod 36 to enter the shrinking chassis 2, so that the coolant flows into the radiator from the gap between the second leakage rod 36 and the shrinking chassis 2.
[0030] When the thermostat is in the closed state, the blocking rod 34 is located in the blocking hole 21 to prevent the coolant from leaking from the blocking hole 21. When the refined paraffin is heated and melted, the blocking rod 34 moves upward under the action of the storage tube 4, so that the first leakage rod 35 enters the blocking hole 21. Since the diameter of the first leakage rod 35 is smaller than the blocking rod 34, the coolant will also pass through the blocking hole 21 and flow into the radiator through the leakage hole 13.
[0031] When the coolant temperature drops and the refined paraffin begins to solidify and shrink, the tension spring 53 rebounds and deforms, driving the sliding plate 52 and the support rod 51 to move downward, thereby giving the lifting plate 3 a downward thrust, accelerating the speed of the lifting plate 3 to reset, and then accelerating the solidification of the refined paraffin and the shrinkage of the storage tube 4, so that the thermostat is closed as soon as possible to avoid coolant leakage.
[0032] In addition, in order to prevent the connecting plate 37 from abutting against the lower end surface of the shrink chassis 2, causing the coolant to be unable to enter the radiator, a plurality of limit columns 22 are fixedly connected to the lower end surface of the shrink chassis 2. When the refined paraffin is heated and melted, the connecting plate 37 moves upward until the upper end of the connecting plate 37 abuts against the lower end of the limit column 22.
[0033] Furthermore, in order to shorten the time required for the coolant to enter the radiator, a plurality of leakage lines 38 are provided on the lower end surface of the lifting plate 3. It should be noted that the leakage lines 38 should not be too close to the connecting rod 32 to prevent the coolant from leaking from the leakage lines 38 when the thermostat is in the closed state.
[0034] It should also be pointed out that the terms used in the present invention, such as "front", "rear", "vertical", "horizontal", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only used to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention.
[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A leak-proof thermostat, comprising a shrink top plate (1), a shrink bottom plate (2) being arranged below the shrink top plate (1), characterized in that: The upper end of the shrinkable bottom plate (2) is provided with a lifting plate (3), the upper end of the lifting plate (3) is fixedly connected to a bellows (31), the upper end of the bellows (31) is fixedly connected to the shrinkable top plate (1), the upper end of the lifting plate (3) is symmetrically provided with an auxiliary reset mechanism, the lower end of the shrinkable top plate (1) is symmetrically provided with a support frame (11), the auxiliary reset mechanism is slidably connected to the support frame (11), the shrinkable top plate (1) is provided with a plurality of leakage holes (13) around the support frame (11), the lower end of the lifting plate (3) is fixedly connected to a connecting rod (32), the connecting rod (32) penetrates through and is slidably connected to the shrinkable bottom plate (2), the lower end of the connecting rod (32) is fixedly connected to a force-bearing section (33), the lower end of the connecting rod is provided with a storage tube (4), the force-bearing section (33) is slidably connected to the storage tube (4), and the lower end of the storage tube (4) is fixedly connected to a fixing member (41).
2. The anti-leakage thermostat according to claim 1, characterized in that: The auxiliary reset mechanism comprises a support rod (51), a sliding plate (52) and a tension spring (53); the support rod (51) is fixedly connected to the upper end surface of the lifting plate (3); the upper end of the support rod (51) extends through the support frame (11); the sliding plate (52) is fixedly connected to the upper end of the support rod (51); the sliding plate (52) is slidably connected to the inner side wall of the support frame (11); and the tension spring (53) is fixedly connected between the lower end surface of the sliding plate (52) and the support frame (11).
3. The anti-leakage thermostat according to claim 2, characterized in that: Limiting grooves (12) are symmetrically provided on the inner walls of both sides of the support frame (11), and both ends of the sliding plate (52) are slidably connected in the limiting grooves (12).
4. The anti-leakage thermostat according to claim 1, characterized in that: At least two blocking rods (34) are fixedly connected to the lower end of the lifting plate (3); a plurality of corresponding blocking holes (21) are formed through the shrinkage chassis (2); the blocking rods (34) are slidably connected to the blocking holes (21); and a first liquid leakage rod (35) is fixedly connected to the lower end of the blocking rod (34); the diameter of the first liquid leakage rod (35) is smaller than that of the blocking rod (34).
5. The anti-leakage thermostat according to claim 4, characterized in that: The lower end of the connecting rod (32) is fixedly connected to a second liquid leakage rod (36); the diameter of the second liquid leakage rod (36) is smaller than that of the connecting rod (32); the height of the second liquid leakage rod (36) is flush with that of the first liquid leakage rod (35); the lower end of the second liquid leakage rod (36) is fixedly connected to a connecting plate (37); and the force-bearing section (33) is fixedly connected to the lower end of the connecting plate (37).
6. The anti-leakage thermostat according to claim 5, characterized in that: A plurality of limiting columns (22) are fixedly connected to the lower end surface of the shrinkage chassis (2), and the upper end of the connection plate (37) abuts against the lower end of the limiting column (22).
7. The anti-leakage thermostat according to claim 1, characterized in that: A plurality of liquid leakage lines (38) are provided on the lower end surface of the lifting plate (3).