Safe and reliable liquid tank assembly

Abstract

The utility model relates to the technical field of liquid tank assemblies, in particular to a safe and reliable liquid tank assembly which comprises a liquid tank mechanism, the liquid tank mechanism comprises a tank body, a second oil pipe connector seat is fixedly connected to the position, close to the center, of the bottom end of the tank body, and two first oil pipe connector seats are fixedly connected to the bottom end of the tank body around the axis of the tank body at equal angles. A limiting and sealing mechanism is fixedly connected to the position, located on the second oil pipe connector base, in the tank body, the limiting and sealing mechanism comprises a limiting unit and a wing-shaped threaded rod, and the limiting unit comprises a round shell. According to the utility model, the sealing element I or the sealing element II is respectively arranged on the end opening of the tank body and the cross fixing ring, so that the sealing performance of the end opening of the tank body can be effectively improved, oil leakage is prevented, in addition, the wing-shaped threaded rod is screwed with the cross fixing ring, and the clinging degree of the filter element and the inner wall of the round shell can be adjusted; the installation stability of the filter element is effectively improved, it is ensured that oil fully flows through the filter material, and the filtering efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid tank assemblies, in particular to a safe and reliable liquid tank assembly. Background Art

[0002] The fluid tank assembly plays an important role in the automobile power steering system. Its main functions are to store steering fluid, dissipate heat, settle impurities and provide stable oil pressure for the steering system.

[0003] The traditional power steering oil tank assembly has some defects. In order to facilitate disassembly, the filter element is positioned at one end by an elastic device. Under the pressure and vibration generated by the oil flow during operation, the filter element may shift and create gaps. Under such conditions, impurities in the oil may enter the power steering system directly without being filtered, causing damage to the system. Utility Model Content

[0004] In order to overcome the above-mentioned technical problems, the purpose of the present invention is to provide a safe and reliable liquid tank assembly. When the filter element moves downward to extrude the T-shaped block, the L-shaped frame is driven to move, and the extruded semi-ring frame slides in the ring groove until the extruded seal five is close to the outer wall of the filter element, and the seal four is engaged with the filter element to perform double-layer sealing and fixed limit on the filter element, effectively preventing vibration from causing the filter element to shift, resulting in oil flowing out without being filtered by the filter element, effectively improving the sealing performance, protecting the purity of the oil and the cleanliness of the tank body, and reducing maintenance costs. By respectively arranging seal one or seal two on the port of the tank body and the cross fixing ring, the sealing of the tank body port can be effectively improved to prevent oil leakage. In addition, the wing-shaped threaded rod is screwed with the cross fixing ring to adjust the closeness of the filter element to the inner wall of the round shell, effectively improving the installation stability of the filter element, ensuring that the oil fully flows through the filter material, and improving the filtration efficiency.

[0005] The purpose of this utility model can be achieved through the following technical solutions:

[0006] A safe and reliable liquid tank assembly, comprising a liquid tank mechanism, the liquid tank mechanism comprising a tank body, a second oil pipe joint seat is fixedly connected near the center of the bottom end of the tank body, two first oil pipe joint seats are fixedly connected at equal angles around the axis of the tank body, and a limited position sealing mechanism is fixedly connected at the second oil pipe joint seat inside the tank body;

[0007] The limit sealing mechanism comprises a limit unit and a wing-shaped threaded rod, and the limit unit comprises a round shell, the outer wall of the round shell is fixedly connected to the inner wall of the tank body at two oil pipe joint seats, the inner wall of the round shell is fixedly connected with a seal member four, the inner wall of the round shell is provided with two square holes at equal angles around its axis, the inner wall of the round shell is provided with an annular groove, a seal member five is clamped inside the annular groove, a seal member six is ​​slidably inserted inside the square hole, the inner wall of the seal member six is ​​fixedly connected with a T-shaped block, the outer walls on both sides of the T-shaped block are fixedly connected to the outer wall of the bottom end of the round shell with a spring one, the T-shaped block is rotatably connected with an L-shaped frame one, the outer wall of the round shell is fixedly connected with two rotating seats at equal angles around its axis, the rotating seat is rotatably connected to the L-shaped frame one, one end of the L-shaped frame one is rotatably connected with a semi-ring frame, and the outer wall of the semi-ring frame is slidably inserted into the inner wall of the annular groove.

[0008] Furthermore, the outer wall of the tank body port is sleeved and fixedly connected with a seal 1, the outer wall of the seal 1 is clamped with a cross fixing ring, the outer wall of the cross fixing ring is sleeved and fixedly connected with a seal 2, the outer wall of the seal 2 is clamped with a tank cover, the outer wall of the tank cover is screwed together with the tank body, the outer wall of the tank cover is fixedly connected with a seal 3 near the center position, the seal 3 is slidably connected to a wing-shaped threaded rod, and the wing-shaped threaded rod is screwed together with the cross fixing ring.

[0009] Preferably: one end of the wing-shaped threaded rod is rotatably connected to a round rod, the outer wall of the round rod is fixedly connected to two L-shaped frames 2 at equal angles around its axis, a circular filter frame is fixedly connected between the outer walls of the two L-shaped frames 2, and a seal 7 is fixedly connected to the inner wall of the circular filter frame.

[0010] Preferably: a filter element is clamped at one end of the round rod, the outer wall of one end of the filter element is plugged into the outer wall of a seal element four, the outer wall of the round rod is fixedly connected to two square rods two at equal angles around its axis, the outer wall of one end of the filter element is fixedly connected to a ring seat three, the outer wall of the ring seat three is fixedly connected to a spring three, one end of the spring three is fixedly connected to a ring seat four, a square groove one is provided on the outer wall of the ring seat four, the outer wall of the ring seat four is rotatably connected to a ring seat five, the outer wall of the ring seat five is provided with a square groove three, the outer wall of the square rod two is plugged into the square groove one or the square groove three.

[0011] Preferably, a first ring seat is sleeved and fixedly connected to the outer wall of the round rod, a second ring seat is sleeved and slidably inserted into the outer wall of the round rod, and a second spring is fixedly connected between the outer wall of the second ring seat and the outer wall of the first ring seat.

[0012] Preferably: the outer wall of the ring seat 2 is fixedly connected with a square rod 1, the outer wall of the ring seat 4 is provided with a square groove 2 at one side, the outer wall of the ring seat 5 is provided with a square groove 4 at one side, and the outer wall of the square rod 1 is plugged into and matched with the square groove 4 or the square groove 2.

[0013] Beneficial effects of this utility:

[0014] 1. A second oil pipe joint seat is fixedly connected at the bottom of the tank body near the center, two oil pipe joint seats are fixedly connected at equal angles around the axis of the bottom of the tank body, and a limited sealing mechanism is fixedly connected at the second oil pipe joint seat inside the tank body. The limited sealing mechanism mainly includes a limited unit and a wing-shaped threaded rod, and the limited unit includes a round shell, the outer wall of the round shell is fixedly connected to the inner wall of the tank body at the second oil pipe joint seat, a sealing member is fixedly connected to the inner wall of the round shell, and two square holes are provided on the inner wall of the round shell at equal angles around the axis, an annular groove is provided on the inner wall of the round shell, and a sealing member is clamped inside the annular groove, a sealing member is slidably inserted inside the square hole, and a T-shaped block is fixedly connected to the inner wall of the sealing member, and the outer walls on both sides of the T-shaped block are connected to the bottom of the round shell. A spring 1 is fixedly connected between the outer walls of the ends, an L-shaped frame 1 is rotatably connected to the T-shaped block, and two rotating seats are fixedly connected to the outer wall of the circular shell at equal angles around its axis, and the rotating seat is rotatably connected to the L-shaped frame 1, and one end of the L-shaped frame 1 is rotatably connected to a semi-ring frame, and the outer wall of the semi-ring frame is slidably plugged into the inside of the ring groove. When the filter element moves downward to extrude the T-shaped block, the L-shaped frame 1 is driven to move, and the semi-ring frame is extruded to slide in the ring groove until the extrusion seal 5 is tightly against the outer wall of the filter element, and the seal 4 is engaged with the filter element, so that the filter element is double-sealed and fixedly limited, which effectively prevents vibration and causes the filter element to deviate, resulting in oil flowing out without being filtered by the filter element, effectively improving the sealing performance, protecting the purity of the oil and the cleanliness of the tank body, and reducing maintenance costs.

[0015] 2. A seal 1 is fixedly connected by sleeve connection with the outer wall of the tank body port, a cross fixing ring is clamped on the outer wall of the seal 1, and a seal 2 is fixedly connected by sleeve connection with the outer wall of the cross fixing ring, a tank cover is clamped on the outer wall of the seal 2, and the outer wall of the tank cover is screwed together with the tank body, a seal 3 is fixedly connected to the outer wall of the tank cover near the center, and the seal 3 is slidably connected to the wing-shaped threaded rod, and the wing-shaped threaded rod is screwed together with the cross fixing ring. By respectively arranging the seal 1 or the seal 2 on the port of the tank body and the cross fixing ring, the sealing of the tank body port can be effectively improved to prevent oil leakage. In addition, the degree of close contact between the filter element and the inner wall of the round shell can be adjusted by screwing the wing-shaped threaded rod with the cross fixing ring, which effectively improves the installation stability of the filter element, ensures that the oil fully flows through the filter material, and improves the filtering efficiency.

[0016] 3. A round rod is rotatably connected to one end of the wing-shaped threaded rod, and two L-shaped frames 2 are fixedly connected to the outer wall of the round rod at equal angles around its axis, and a circular filter frame is fixedly connected between the outer walls of the two L-shaped frames 2, and a sealing member 7 is fixedly connected to the inner wall of the circular filter frame. The circular filter frame can be used to filter the oil filtered by the filter element again to prevent the filter element from being blocked. The oil directly enters the power steering system without being filtered, which can easily cause system damage, and effectively improves the filtering accuracy and working stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention is further described below in conjunction with the accompanying drawings.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a structural schematic diagram of the liquid tank mechanism in the utility model from another angle;

[0020] Figure 3 It is a schematic diagram of the cross-sectional structure of the tank body in the utility model;

[0021] Figure 4 It is a schematic diagram of the structure of the limiting unit in the utility model;

[0022] Figure 5 It is a partial structural schematic diagram of the limit sealing mechanism in the utility model;

[0023] Figure 6 It is a partial structural schematic diagram of the position limiting sealing mechanism in the utility model from another viewing angle.

[0024] In the figure: 100, liquid tank mechanism; 110, tank body; 111, seal 1; 112, cross fixing ring; 113, seal 2; 114, tank cover; 115, seal 3; 116, oil pipe joint seat 1; 117, oil pipe joint seat 2; 200, limit sealing mechanism; 210, limit unit; 211, round shell; 212, seal 4; 213, ring groove; 214, seal 5; 215, square hole; 216, rotating seat; 220, T-shaped block; 221, seal 6; 222, elastic Spring one; 223, L-shaped frame one; 224, half ring frame; 231, wing-shaped threaded rod; 232, round rod; 233, L-shaped frame two; 234, round filter frame; 235, seal seven; 236, ring seat one; 237, ring seat two; 238, spring two; 239, square rod one; 240, square rod two; 250, filter element; 251, ring seat three; 252, ring seat four; 253, spring three; 254, square groove one; 255, square groove two; 256, ring seat five; 257, square groove three; 258, square groove four. DETAILED DESCRIPTION

[0025] The following will be combined with the practical embodiment to clearly and completely describe the technical solution in the practical embodiment. Obviously, the described embodiment is only a part of the practical embodiment, not all of the embodiments. Based on the embodiment in the practical, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this practical.

[0026] See also Figure 1-6In the embodiment of the utility model, a safe and reliable liquid tank assembly includes a liquid tank mechanism 100, the liquid tank mechanism 100 includes a tank body 110, a second oil pipe joint seat 117 is fixedly connected to the bottom of the tank body 110 near the center, two oil pipe joint seats 116 are fixedly connected to the bottom of the tank body 110 at equal angles around its axis, and a limited sealing mechanism 200 is fixedly connected to the second oil pipe joint seat 117 inside the tank body 110, and the limited sealing mechanism 200 includes a limited unit 210 and a wing-shaped threaded rod 231, and the limited unit 210 includes a round shell 211, and the round shell 21 The outer wall of the round shell 211 is fixedly connected to the inner wall of the tank body 110 at the oil pipe joint seat 2 117, the inner wall of the round shell 211 is fixedly connected with a sealing member 212, the inner wall of the round shell 211 is provided with two square holes 215 at equal angles around its axis, the inner wall of the round shell 211 is provided with an annular groove 213, the inner part of the annular groove 213 is clamped with a sealing member 214, the inner part of the square hole 215 is slidably plugged with a sealing member 221, the inner wall of the sealing member 221 is fixedly connected with a T-shaped block 220, the outer walls on both sides of the T-shaped block 220 and the outer wall of the bottom end of the round shell 211 are fixedly connected with a spring 222, and the T-shaped block 220 is rotated. The outer wall of the round shell 211 is fixedly connected with two rotating seats 216 at equal angles around its axis. The rotating seat 216 is rotatably connected with the L-shaped frame 223. One end of the L-shaped frame 223 is rotatably connected with a semi-ring frame 224. The outer wall of the semi-ring frame 224 is slidably plugged into the inner part of the ring groove 213. The outer wall of the port of the tank body 110 is sleeved and fixedly connected with a seal 111. The outer wall of the seal 111 is clamped with a cross fixing ring 112. The outer wall of the cross fixing ring 112 is sleeved and fixedly connected with a seal 2 113. The outer wall of the seal 2 113 is clamped with a tank cover 114. The outer wall of the tank cover 114 is screwed together with the tank body 110, and a sealing member 3 115 is fixedly connected to the outer wall of the tank cover 114 near the center position. The sealing member 3 115 is slidably connected to the wing-shaped threaded rod 231, and the wing-shaped threaded rod 231 is screwed together with the cross fixing ring 112. One end of the wing-shaped threaded rod 231 is rotatably connected to a round rod 232, and the outer wall of the round rod 232 is fixedly connected with two L-shaped frames 233 at equal angles around its axis, a circular filter frame 234 is fixedly connected between the outer walls of the two L-shaped frames 233, and a sealing member 7 235 is fixedly connected to the inner wall of the circular filter frame 234.

[0027] A filter element 250 is clamped at one end of the round rod 232, and the outer wall of one end of the filter element 250 is plugged into the outer wall of the sealing member 4 212. The outer wall of the round rod 232 is fixedly connected with two square rods 240 at equal angles around its axis. A ring seat 3 251 is fixedly connected to the outer wall of the filter element 250 at one end. A spring 3 253 is fixedly connected to the outer wall of the ring seat 3 251. One end of the spring 3 253 is fixedly connected to the ring seat 4 252. A square groove 1 254 is provided on the outer wall of the ring seat 4 252. A ring seat 5 256 is rotatably connected to the outer wall of the ring seat 5 256. A square groove 3 257 is provided on the outer wall of the square rod 22 The outer wall of round rod 232 is plugged into square groove one 254 or square groove three 257, the outer wall of round rod 232 is sleeved and fixedly connected with ring seat one 236, the outer wall of round rod 232 is sleeved and slidably plugged into ring seat two 237, a spring two 238 is fixedly connected between the outer wall of ring seat two 237 and the outer wall of ring seat one 236, the outer wall of ring seat two 237 is fixedly connected with square rod one 239, the outer wall of ring seat four 252 is provided with square groove two 255 at one side, the outer wall of ring seat five 256 is provided with square groove four 258 at one side, the outer wall of square rod one 239 is plugged into square groove four 258 or square groove two 255.

[0028] Specifically, during operation, the personnel can twist the tank cover 114 to separate the tank cover 114 from the tank body 110, and observe whether there are impurities in the oil inside the tank body 110 or check whether the filter element 250 is blocked through the port gap between the tank cover 114 and the tank body 110. When the filter element 250 is blocked, the oil inside the tank body 110 is evacuated, and the round rod 232 is twisted to move the filter element 250 upward and separate from the round shell 211, and then the limit sealing mechanism 200 together with the cross is closed. The fixing ring 112 is pulled out, during which the circular filter frame 234 moves upward along the wall of the tank body 110, taking out the impurities inside, pulling the ring seat 237 to move toward the ring seat 1 236, so that the square rod 1 239 is separated from the square groove 4 258 or the square groove 255, rotating the ring seat 5 256 until the square groove 3 257 overlaps with the square groove 1 254, pulling the square rod 240 out of the square groove 1 254, plugging one end of the round rod 232 with the new filter element 250, and the square rod 240 and The square groove 1 254 is inserted, the ring seat 5 256 is rotated until the square groove 4 258 overlaps with the square groove 255, the ring seat 237 is loosened, and the spring 238 rebounds, so that the square rod 1 239 is engaged with the square groove 4 258 or the square groove 255, the filter element 250 is limited, and the limiting sealing mechanism 200 is sent into the tank body 110, so that the bottom of the filter element 250 corresponds to the internal position of the round shell 211 for insertion, and the cross fixing ring 112 is engaged with the sealing member 111. The wing-shaped threaded rod 231 is twisted to screw into the cross fixing ring 112, driving the filter element 250 to move and squeeze the inner wall of the circular shell 211. The T-shaped block 220 is squeezed and slides outward from the circular shell 211. The L-shaped frame 1 223 moves to push the semi-ring frame 224 to squeeze the sealing member 5 214, so that the sealing member 5 214 is tightly attached to the outer wall of the filter element 250, thereby sealing and fixing the filter element 250. As the wing-shaped threaded rod 231 rotates, the sealing member 7 235 is clamped and fixed to the outer wall of the circular shell 211.

[0029] Embodiment 1

[0030] like Figure 5-6 As shown, in this embodiment, a filter element 250 is clamped at one end of a round rod 232, and an outer wall at one end of the filter element 250 is plugged into an outer wall of a sealing member 4 212, and two square rods 240 are fixedly connected to the outer wall of the round rod 232 at equal angles around its axis, a ring seat 3 251 is fixedly connected to the outer wall of the filter element 250 at one end, a spring 3 253 is fixedly connected to the outer wall of the ring seat 3 251, and one end of the spring 3 253 is fixedly connected to the ring seat 4 252, a square groove 1 254 is provided on the outer wall of the ring seat 4 252, a ring seat 5 256 is rotatably connected to the outer wall of the ring seat 4 252, a square groove 3 257 is provided on the outer wall of the ring seat 5 256, and the outer wall of the square rod 240 is plugged into and fitted with the square groove 1 254 or the square groove 3 257.

[0031] In this embodiment, one end of the round rod 232 is plugged into the filter element 250, the square rod 240 is plugged into the square groove 1 254, and the ring seat 5 256 is rotated until the square groove 4 258 overlaps with the square groove 2 255, so that the round rod 232 and the filter element 250 are fixed.

[0032] like Figure 5-6 As shown, in this embodiment, the outer wall of the round rod 232 is sleeved and fixedly connected with a ring seat 1 236, the outer wall of the round rod 232 is sleeved and slidably connected with a ring seat 237, a spring 238 is fixedly connected between the outer wall of the ring seat 237 and the outer wall of the ring seat 1 236, the outer wall of the ring seat 237 is fixedly connected with a square rod 1 239, the outer wall of the ring seat 4 252 is provided with a square groove 255 at one side, the outer wall of the ring seat 5 256 is provided with a square groove 4 258 at one side, and the outer wall of the square rod 1 239 is plugged into the square groove 4 258 or the square groove 255.

[0033] During specific implementation, the ring seat 237 is loosened, and the spring 238 rebounds, so that the square rod 1 239 is engaged with the square groove 4 258 or the square groove 255, and the ring seat 4 252 and the ring seat 5 256 are limited to prevent shaking during operation, so that the ring seat 4 252 or the ring seat 5 256 rotates, the square rod 240 is separated from the square groove 1 254 through the square groove 3 257, and the round rod 232 is separated from the filter element 250.

[0034] Embodiment 2

[0035] like Figure 4 As shown, in this embodiment, the limiting sealing mechanism 200 includes a limiting unit 210 and a wing-shaped threaded rod 231. The limiting unit 210 includes a round shell 211. The outer wall of the round shell 211 is fixedly connected to the inner wall of the tank body 110 at the oil pipe joint seat 2 117. The inner wall of the round shell 211 is fixedly connected with a sealing member 212. The inner wall of the round shell 211 is provided with two square holes 215 at equal angles around its axis. The inner wall of the round shell 211 is provided with an annular groove 213. The inner part of the annular groove 213 is clamped with a sealing member 214. The inner part of the square hole 215 is provided with a sliding insert 216. A sealing member 221 is connected, and a T-shaped block 220 is fixedly connected to the inner wall of the sealing member 221. A spring 222 is fixedly connected between the outer walls on both sides of the T-shaped block 220 and the outer wall of the bottom end of the circular shell 211. The T-shaped block 220 is rotatably connected to an L-shaped frame 223. The outer wall of the circular shell 211 is fixedly connected to two rotating seats 216 at equal angles around its axis. The rotating seat 216 is rotatably connected to the L-shaped frame 223. One end of the L-shaped frame 223 is rotatably connected to a semi-ring frame 224. The outer wall of the semi-ring frame 224 is slidably plugged into the inside of the annular groove 213.

[0036] In specific implementation, the filter element 250 moves downward and squeezes the T-shaped block 220, thereby driving the L-shaped frame 1 223 to move, thereby squeezing the semi-ring frame 224, causing it to slide in the ring groove 213 and squeeze the seal 5 214 until it is close to the outer wall of the filter element 250. At the same time, the seal 4 212 is engaged with the filter element 250 to perform double-layer sealing and fixed position limiting on the filter element 250. This design effectively ensures that the oil is filtered by the filter element 250, prevents the unfiltered oil from flowing out directly, and protects the purity of the oil and the cleanliness of the system.

[0037] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific characteristic structure materials or features described in conjunction with the embodiment or example are included in at least one embodiment or example of the present utility. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific characteristic structure materials or features described can be combined in any one or more embodiments or examples in a suitable manner.

[0038] The above contents are merely examples and explanations of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the utility or exceed the scope defined in the claims, they should all fall within the protection scope of the present invention.

Claims

1. A safe and reliable liquid tank assembly, characterized in that: The invention comprises a liquid tank mechanism (100), wherein the liquid tank mechanism (100) comprises a tank body (110), wherein a second oil pipe joint seat (117) is fixedly connected to the bottom end of the tank body (110) near the center position, and two first oil pipe joint seats (116) are fixedly connected to the bottom end of the tank body (110) at equal angles around the axis thereof, and a limited position sealing mechanism (200) is fixedly connected to the second oil pipe joint seat (117) inside the tank body (110); The position limiting sealing mechanism (200) comprises a position limiting unit (210) and a wing-shaped threaded rod (231). The position limiting unit (210) comprises a round shell (211). The outer wall of the round shell (211) is fixedly connected to the inner wall of the tank body (110) at a second oil pipe joint seat (117). A fourth sealing member (212) is fixedly connected to the inner wall of the round shell (211). Two square holes (215) are provided on the inner wall of the round shell (211) at equal angles around its axis. An annular groove (213) is provided on the inner wall of the round shell (211). A fifth sealing member (214) is clamped inside the annular groove (213). A sealing member (215) is slidably inserted inside the square hole (215). A sealing member six (221), wherein the inner wall of the sealing member six (221) is fixedly connected with a T-shaped block (220), and a spring one (222) is fixedly connected between the outer walls on both sides of the T-shaped block (220) and the outer wall of the bottom end of the circular shell (211), and the T-shaped block (220) is rotatably connected with an L-shaped frame one (223), and the outer wall of the circular shell (211) is fixedly connected with two rotating seats (216) at equal angles around its axis, and the rotating seat (216) is rotatably connected with the L-shaped frame one (223), and one end of the L-shaped frame one (223) is rotatably connected with a semi-ring frame (224), and the outer wall of the semi-ring frame (224) is slidably plugged into the inside of the annular groove (213).

2. A safe and reliable liquid tank assembly according to claim 1, characterized in that: The outer wall of the port of the tank body (110) is sleeved and fixedly connected with a seal 1 (111), the outer wall of the seal 1 (111) is clamped with a cross fixing ring (112), the outer wall of the cross fixing ring (112) is sleeved and fixedly connected with a seal 2 (113), the outer wall of the seal 2 (113) is clamped with a tank cover (114), the outer wall of the tank cover (114) is screwed and connected to the tank body (110), the outer wall of the tank cover (114) is fixedly connected with a seal 3 (115) near the center position, the seal 3 (115) is slidably connected to a wing-shaped threaded rod (231), and the wing-shaped threaded rod (231) is screwed and connected to the cross fixing ring (112).

3. A safe and reliable liquid tank assembly according to claim 2, characterized in that: One end of the wing-shaped threaded rod (231) is rotatably connected to a round rod (232); the outer wall of the round rod (232) is fixedly connected to two L-shaped frames (233) at equal angles around its axis; a circular filter frame (234) is fixedly connected between the outer walls of the two L-shaped frames (233); and a sealing member (235) is fixedly connected to the inner wall of the circular filter frame (234).

4. A safe and reliable liquid tank assembly according to claim 3, characterized in that: A filter element (250) is clamped on one end of the round rod (232), and the outer wall of one end of the filter element (250) is plugged into the outer wall of the sealing member four (212). The outer wall of the round rod (232) is fixedly connected to two square rods two (240) at equal angles around its axis. The outer wall of one end of the filter element (250) is fixedly connected to a ring seat three (251), and the outer wall of the ring seat three (251) is fixedly connected to a spring three (253). One end of the spring three (253) is fixedly connected to a ring seat four (252). A square groove one (254) is provided on the outer wall of the ring seat four (252). The outer wall of the ring seat four (252) is rotatably connected to a ring seat five (256), and the outer wall of the ring seat five (256) is provided with a square groove three (257). The outer wall of the square rod two (240) is plugged into the square groove one (254) or the square groove three (257).

5. A safe and reliable liquid tank assembly according to claim 4, characterized in that: The outer wall of the round rod (232) is sleeved and fixedly connected with a ring seat 1 (236), the outer wall of the round rod (232) is sleeved and slidably connected with a ring seat 2 (237), and a spring 2 (238) is fixedly connected between the outer wall of the ring seat 2 (237) and the outer wall of the ring seat 1 (236).

6. A safe and reliable liquid tank assembly according to claim 5, characterized in that: The outer wall of the ring seat 2 (237) is fixedly connected to a square rod 1 (239); the outer wall of the ring seat 4 (252) is provided with a square groove 2 (255) at one side; the outer wall of the ring seat 5 (256) is provided with a square groove 4 (258) at one side; the outer wall of the square rod 1 (239) is plugged into and matched with the square groove 4 (258) or the square groove 2 (255).

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