Cover structure of overflow tank

Abstract

The utility model provides a cover structure of an overflow tank, and relates to the field of sealing. The cover structure of the overflow tank comprises an overflow tank body, a clamping ring is fixedly connected to the top end of the overflow tank body, a top cover is arranged at the top of the clamping ring, a rubber hoop is fixedly connected to the bottom of the top cover, an elastic rope is fixedly connected to one side of the top cover, and a limiting lantern ring is fixedly connected to one end of the elastic rope. According to the cover structure of the overflow tank, the top cover is fixedly connected with the elastic rope, and the limiting lantern ring fixed by the elastic rope is arranged on the outer side of the overflow tank body in a sleeving manner, so that the top cover is limited by the elastic rope and the limiting lantern ring and cannot be thoroughly separated from the overflow tank body, the situation that the top cover falls off after being detached from the top of the overflow tank body is avoided, and cleanliness of the top cover is guaranteed; and the top cover can be efficiently prevented from being lost, and the limiting lantern ring is arranged between the upper limiting ring and the lower limiting ring.

Description

Technical Field

[0001] The utility model relates to a cover structure, in particular to a cover structure of an overflow tank, belonging to the technical field of sealing. Background Art

[0002] Water tanks are often used in vehicles. When the temperature and pressure inside the vehicle's cooling system rises, the coolant expands. In order to prevent the cooling system from being damaged by excessive pressure, part of the coolant in the cooling system needs to be discharged to the overflow, and the high-pressure gas in the overflow tank needs to be discharged to the outside of the tank body to keep the internal pressure of the cooling system stable. When the temperature of the cooling system drops and the pressure decreases, the coolant in the overflow tank will return to the cooling system again, and the gas outside the tank body will be replenished into the tank body of the overflow tank to keep the internal pressure of the cooling system stable.

[0003] The utility model with existing patent application number: 201821444046.2 relates to the field of vehicle parts, and provides an overflow tank cover and an overflow tank, the overflow tank cover includes a cover body and an exhaust part arranged in the cover body, the exhaust part includes an exhaust valve seat and an exhaust valve installed on the exhaust valve seat, the exhaust valve seat is formed with an exhaust hole that can connect the inside of the tank body and the outside of the tank body of the overflow tank, the exhaust valve can selectively close the exhaust hole, wherein the head of the exhaust valve is formed as a conical structure that cooperates with the exhaust hole.

[0004] However, during the use of the overflow tank, especially for vehicles such as motorcycles whose cooling systems have structural defects, the cover of the overflow tank needs to be removed frequently, and the cover loses its fixation to replenish the liquid inside the overflow tank. However, after the cover of the overflow tank is removed, it is easy to fall to the ground, resulting in the need to clean the cover before it can be used. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] The purpose of the utility model is to provide a lid structure for an overflow tank in order to solve the above-mentioned problem, so as to solve the problem in the prior art that after the lid of the overflow tank is removed, the lid loses its fixation, and the liquid inside the overflow tank is replenished, but after the lid of the overflow tank is removed, it is easy to fall to the ground, resulting in the need to clean the lid before it can be used.

[0007] (II) Technical solution

[0008] The utility model is implemented through the following technical scheme: a cover structure of an overflow tank, including an overflow tank body, a clamping ring fixedly connected to the top of the overflow tank body, a top cover is arranged on the top of the clamping ring, a rubber clamp is fixedly connected to the bottom of the top cover, an elastic rope is fixedly connected to one side of the top cover, one end of the elastic rope is fixedly connected to a limiting ring, the limiting ring is sleeved on the outside of the overflow tank body, and a support limiting component is arranged on the outside of the limiting ring.

[0009] Preferably, a rubber handle is fixedly connected to a side of the top cover away from the elastic rope, and the rubber clamp is sleeved on the outside of the overflow tank body.

[0010] Preferably, the support limit assembly comprises a lower limit ring, the interior of the lower limit ring is fixedly connected with a support pipe, and the support pipe is fixedly sleeved on the outside of the overflow tank body.

[0011] Preferably, an externally threaded pipe is fixedly connected to the top of the supporting pipe, and an upper limit ring is provided on the outer threaded sleeve of the externally threaded pipe. The limit ring is arranged between the upper limit ring and the lower limit ring. The upper limit ring and the lower limit ring limit the limit ring to prevent the limit ring from falling and affecting the flexible operation of the top cover. At the same time, the upper limit ring limits the upward movement position of the limit ring.

[0012] Preferably, a plurality of mounting ball grooves are provided at the top of the upper limit ring, and a drag reducing ball is arranged inside each of the plurality of mounting ball grooves. The plurality of drag reducing balls support an extrusion ring arranged at the top of the upper limit ring, so that the extrusion ring can rotate at the top of the upper limit ring, and the friction force generated between the plurality of drag reducing balls and the extrusion ring is small. An extrusion ring is arranged at the top of the upper limit ring.

[0013] Preferably, the extrusion ring is sleeved on the outside of the overflow tank body, and the bottom of the extrusion ring is fixedly connected to a mounting pipe.

[0014] Preferably, a transmission plate is fixedly connected to one side of the upper limit ring, an operating convex plate is fixedly sleeved on the outer side of the transmission plate, a sliding groove is opened on the top of the upper limit ring, and the mounting tube is arranged inside the sliding groove opened on the top of the upper limit ring, and the mounting tube and the upper limit ring are rotatably installed together.

[0015] The utility model provides a cover structure for an overflow tank, which has the following beneficial effects:

[0016] 1. The lid structure of the overflow tank has a top cover fixedly connected with an elastic rope, and a limiting ring fixed by the elastic rope is arranged on the outside of the overflow tank body, so the top cover is limited by the elastic rope and the limiting ring and will not be completely separated from the overflow tank body, avoiding the top cover from falling off after being removed from the top of the overflow tank body, ensuring the cleanliness of the top cover, and being able to effectively avoid the loss of the top cover. The limiting ring is set between the upper limiting ring and the lower limiting ring. The upper limiting ring and the lower limiting ring limit the limiting ring to prevent the limiting ring from falling and affecting the flexible operation of the top cover. At the same time, the upper limiting ring limits the upward movement of the limiting ring to prevent the limiting ring from detaching from the overflow tank body after the top cover is separated from the overflow tank body, thereby ensuring the limiting effect of the limiting ring on the top cover, preventing the top cover from falling to the ground or being lost, and ensuring the service life of the sealing cover composed of the top cover and the rubber clamp. The position between the limiting ring and the top cover is adjusted according to needs, and the elastic rope fixed between the limiting ring and the top cover is tightened to prevent the elastic rope from shaking and affecting the operation and use of the motorcycle.

[0017] 2. The cover structure of the overflow tank is that after the rubber clamp moves to the outside of the clamping ring, the deformed rubber clamp returns to its original shape, and the rubber clamp at the bottom of the clamping ring returns to its original shape, which plays a role in limiting the top cover, and the installation of the top cover and the overflow tank body can be completed, so that the top cover and the rubber clamp cooperate to seal and block the top of the overflow tank body, and the top cover can be separated from the clamping ring only after being subjected to a force in a certain direction. When the force applied to the top cover from the inside of the overflow tank body does not reach the threshold of large-scale deformation of the rubber clamp, the force applied to the top cover from the inside of the overflow tank body will only make the rubber clamp and the clamping ring fit tightly, and the sealing cover formed by the top cover and the rubber clamp has good sealing performance.

[0018] 3. The lid structure of the overflow tank controls the upper limit ring to rotate upward, and the upper limit ring pushes the extrusion ring sleeved on the outside of the overflow tank body to move upward. The upward extrusion ring pushes the rubber clamp wrapped on the outside of the clamping ring, so that the rubber clamp is squeezed and deformed and fits tightly with the clamping ring, thereby increasing the sealing effect between the rubber clamp and the clamping ring, which can ensure the sealing effect of the sealing cover composed of the top cover and the rubber clamp, and avoid liquid leakage inside the overflow tank body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the limiting sleeve of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the lower limit ring of the utility model;

[0022] Figure 4 For this utility model Figure 3 Schematic diagram of the C part structure.

[0023]

Main component symbol description

[0024] 1. Overflow tank body; 2. Lower limit ring; 3. Support pipe; 4. External threaded pipe; 5. Snap ring; 6. Top cover; 7. Rubber handle; 8. Elastic rope; 9. Limiting ring; 10. Rubber clamp; 11. Upper limit ring; 12. Operating convex plate; 13. Extrusion ring; 14. Mounting pipe; 15. Mounting ball groove; 16. Drag reduction ball; 17. Sliding groove; 18. Transmission plate. DETAILED DESCRIPTION

[0025] The embodiment of the utility model provides a cover structure of an overflow tank.

[0026] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 , including an overflow tank body 1, characterized in that: a clamping ring 5 is fixedly connected to the top of the overflow tank body 1, a top cover 6 is arranged on the top of the clamping ring 5, a rubber clamp 10 is fixedly connected to the bottom of the top cover 6, an elastic rope 8 is fixedly connected to one side of the top cover 6, one end of the elastic rope 8 is fixedly connected to a limiting ring 9, the limiting ring 9 is sleeved on the outside of the overflow tank body 1, and a support limiting component is arranged on the outside of the limiting ring 9.

[0027] When the rubber clamp 10 is pressed against the top of the water tank body 1, the top cover 6 is pressed down, and the elastically deformed rubber clamp 10 is deformed and passes through the outer side of the clamping ring 5. When the rubber clamp 10 moves to the outer side of the clamping ring 5, the deformed rubber clamp 10 returns to its original state. After the rubber clamp 10 at the bottom of the clamping ring 5 returns to its original state, it plays a role in limiting the top cover 6. The installation of the top cover 6 and the water tank body 1 can be completed, so that the top cover 6 and the rubber clamp 10 cooperate to seal and block the top of the water tank body 1. The top cover 6 can only be separated from the clamping ring 5 after being subjected to a force in a certain direction. When the force applied to the top cover 6 inside the water tank body 1 does not reach the threshold value of large-scale deformation of the rubber clamp 10, the force applied to the top cover 6 inside the water tank body 1 will only make the rubber clamp 10 close to the clamping ring 5, and the sealing cover formed by the top cover 6 and the rubber clamp 10 has good sealing performance.

[0028] A rubber handle 7 is fixedly connected to the side of the top cover 6 away from the elastic rope 8. The user holds the rubber handle 7 to pull the top cover 6, so that the top cover 6 drives the rubber clamp 10 to deform and leave the outside of the overflow tank body 1. An elastic rope 8 is fixedly connected to the other side of the top cover 6, and a limiting ring 9 fixed by the elastic rope 8 is sleeved on the outside of the overflow tank body 1. Therefore, the top cover 6 is limited by the elastic rope 8 and the limiting ring 9 and will not completely separate from the overflow tank body 1, thereby avoiding the top cover 6 from falling off after being removed from the top of the overflow tank body 1, ensuring the cleanliness of the top cover 6 and being able to effectively avoid the loss of the top cover 6.

[0029] A supporting pipe 3 is fixedly connected inside the lower limiting ring 2, and the supporting pipe 3 is fixedly sleeved on the outside of the overflow tank body 1, and an externally threaded pipe 4 is fixedly connected to the top of the supporting pipe 3. The supporting pipe 3 and the externally threaded pipe 4 form an interval for the limiting ring 9 to slide. The user can adjust the position between the limiting ring 9 and the top cover 6 as needed, and tighten the elastic rope 8 fixed between the limiting ring 9 and the top cover 6 to prevent the elastic rope 8 from shaking and affecting the operation of the motorcycle.

[0030] In addition, an upper limit ring 11 is provided on the outer threaded sleeve of the external threaded tube 4, and the limit collar 9 is arranged between the upper limit ring 11 and the lower limit ring 2. The upper limit ring 11 and the lower limit ring 2 limit the limit collar 9 to prevent the limit collar 9 from falling and affecting the flexible operation of the top cover 6. At the same time, the upper limit ring 11 limits the upward movement of the limit collar 9 to prevent the limit collar 9 from detaching from the overflow tank body 1 after the top cover 6 is separated from the overflow tank body 1, thereby ensuring the effect of the limit collar 9 on limiting the top cover 6, preventing the top cover 6 from falling to the ground or being lost, and ensuring the service life of the sealing cover composed of the top cover 6 and the rubber clamp 10.

[0031] A plurality of ball installation grooves 15 are provided at the top of the upper limit ring 11. The drag reduction balls 16 provided inside the plurality of ball installation grooves 15 can rotate freely, and the drag reduction balls 16 exposed from the top of the ball installation grooves 15 will not separate from the upper limit ring 11. The extrusion ring 13 provided at the top of the upper limit ring 11 is supported by the plurality of drag reduction balls 16, so that the extrusion ring 13 can rotate at the top of the upper limit ring 11, and the friction force generated between the plurality of drag reduction balls 16 and the extrusion ring 13 is small. Therefore, when the upper limit ring 11 is pushed to rotate upward on the outside of the external threaded tube 4, when the upper limit ring 11 pushes the extrusion ring 13 upward to pressurize the rubber clamp 10, the extrusion ring 13 is less worn, thereby extending the service life of the extrusion ring 13.

[0032] The bottom of the extrusion ring 13 is fixedly connected with a mounting tube 14, which is arranged inside a sliding groove 17 provided at the top of the upper limit ring 11. The mounting tube 14 and the upper limit ring 11 are rotated and mounted together. The mounting tube 14 is moved upward without affecting the rotation of the extrusion ring 13 on the top of the upper limit ring 11, and will not be separated from the mounting connection relationship with the upper limit ring 11. Therefore, after the top of the extrusion ring 13 contacts the rubber clamp 10 and is limited by the rubber clamp 10, the extrusion ring 13 can still rotate to a certain extent to control the force applied by the extrusion ring 13 to the rubber clamp 10.

[0033] A transmission plate 18 is fixedly connected to one side of the upper limit ring 11, and an operating convex plate 12 that increases friction is fixedly sleeved on the outer side of the transmission plate 18, thereby increasing the convenience of the user in using the operating convex plate 12. The user pushes the operating convex plate 12 with his fingers, and the operating convex plate 12 drives the upper limit ring 11 to rotate through the fixed transmission plate 18, so that the upper limit ring 11 rotates on the outer side of the external threaded tube 4. The upper and lower positions of the upper limit ring 11 are controlled by controlling the rotation direction of the upper limit ring 11. The upper limit ring 11 is controlled to rotate upward, and the upper limit ring 11 pushes the extrusion ring 13 sleeved on the outer side of the overflow tank body 1 to move upward. The upward extrusion ring 13 pushes the rubber clamp 10 wrapped around the outer side of the clamping ring 5, so that the rubber clamp 10 is squeezed and deformed and fits tightly against the clamping ring 5, thereby increasing the sealing effect between the rubber clamp 10 and the clamping ring 5, thereby ensuring the sealing effect of the sealing cover composed of the top cover 6 and the rubber clamp 10, and preventing liquid leakage from the overflow tank body 1.

[0034] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A cover structure for an overflow tank, comprising an overflow tank body (1), characterized in that: The top of the overflow tank body (1) is fixedly connected to a clamping ring (5), a top cover (6) is arranged on the top of the clamping ring (5), a rubber clamp (10) is fixedly connected to the bottom of the top cover (6), an elastic rope (8) is fixedly connected to one side of the top cover (6), one end of the elastic rope (8) is fixedly connected to a limiting ring (9), the limiting ring (9) is sleeved on the outside of the overflow tank body (1), and a support limiting component is arranged on the outside of the limiting ring (9).

2. The cover structure of the overflow tank according to claim 1, characterized in that: A rubber handle (7) is fixedly connected to the side of the top cover (6) away from the elastic rope (8), and the rubber clamp (10) is sleeved on the outside of the overflow tank body (1).

3. The cover structure of the overflow tank according to claim 1, characterized in that: The support and limiting assembly comprises a lower limit ring (2), the interior of the lower limit ring (2) is fixedly connected with a support pipe (3), and the support pipe (3) is fixedly sleeved on the outside of the overflow tank body (1).

4. The cover structure of the overflow tank according to claim 3, characterized in that: The top of the support pipe (3) is fixedly connected to an external threaded pipe (4), an upper limit ring (11) is provided on the outer thread sleeve of the external threaded pipe (4), and the limit sleeve ring (9) is arranged between the upper limit ring (11) and the lower limit ring (2).

5. The cover structure of the overflow tank according to claim 4, characterized in that: The upper limit ring (11) is provided with a plurality of ball installation grooves (15) at the top, each of which is provided with a drag reduction rolling ball (16), and the upper limit ring (11) is provided with an extrusion ring (13) at the top.

6. The cover structure of the overflow tank according to claim 5, characterized in that: The extrusion ring (13) is sleeved on the outside of the overflow tank body (1), and a mounting pipe (14) is fixedly connected to the bottom of the extrusion ring (13).

7. The cover structure of the overflow tank according to claim 4, characterized in that: A transmission plate (18) is fixedly connected to one side of the upper limit ring (11), an operating convex plate (12) is fixedly sleeved on the outer side of the transmission plate (18), and a sliding groove (17) is provided on the top of the upper limit ring (11).

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