Anti-leakage auxiliary water tank of forklift

Abstract

The utility model relates to a forklift anti-leakage auxiliary water tank, which belongs to the technical field of forklift cooling systems, and comprises a tank body arranged on a forklift frame, a buffer connecting piece is arranged between the forklift frame and the tank body, and a nut is embedded in the side wall of the tank body corresponding to the buffer connecting piece. The top of the box body communicates with a water injection pipe used for conveying cooling liquid. The buffering connecting piece is composed of a first connecting arm, a second connecting arm and a buffering portion, the first connecting arm and the second connecting arm are vertically arranged, the buffering portion is transversely arranged between the first connecting arm and the second connecting arm, the first connecting arm is connected with the forklift frame through a threaded fastener, and the second connecting arm is connected with the nut through a threaded fastener. According to the utility model, the buffer connecting piece is matched with the nut and the threaded fastener to mount the box body on the forklift frame, and the impact on the joints of the box body, the nut and the water injection pipe is reduced through the transversely arranged buffer part, so that the leakage condition of the auxiliary water tank is avoided.

Description

Technical Field

[0001] This utility model belongs to the technical field of forklift cooling systems, specifically relating to a leak-proof auxiliary water tank for forklifts. Background Technology

[0002] As a crucial piece of equipment in industrial material handling, the stability of a forklift's cooling system directly impacts engine efficiency and lifespan. The auxiliary coolant tank, a key component of the cooling system, primarily stores and regulates coolant. Under high-load or complex operating conditions, coolant demand increases, making the auxiliary coolant tank particularly important. Currently, forklift auxiliary coolant tanks are mostly installed using a rigid connection, directly fixing the tank to the frame via a connecting arm that penetrates the tank wall. While this design simplifies the installation process, it has the following drawbacks:

[0003] 1) Poor sealing at the connection: The installation method of the connecting arm passing through the auxiliary water tank means that the contact surface between the tank and the connecting arm needs to rely on sealing rings or gaskets for sealing. Long-term exposure to forklift operation vibration, temperature changes and coolant corrosion can easily cause the sealing material to age or deform, leading to leakage.

[0004] 2) Lack of buffer structure: There is no effective buffer structure between the auxiliary water tank and the frame. When the forklift is on a bumpy road or under high-frequency vibration conditions, the stress concentration at the rigid connection will accelerate the wear of the sealing structure and may even cause the tank or connecting arm to crack, increasing the risk of leakage.

[0005] It is evident that traditional auxiliary water tanks have shortcomings in installation methods and shock absorption performance, easily leading to coolant leakage, which in turn causes reduced heat dissipation efficiency, engine overheating, and even engine shutdown. These problems are particularly pronounced in harsh working conditions such as mines and construction sites. Therefore, there is an urgent need to design an auxiliary water tank with strong leak-proof performance. Utility Model Content

[0006] The purpose of this utility model is to provide a leak-proof auxiliary water tank for forklifts in order to solve the above-mentioned problems.

[0007] This utility model achieves the above objectives through the following technical solutions:

[0008] A leak-proof auxiliary water tank for forklifts includes a tank body mounted on a forklift frame, a buffer connector between the forklift frame and the tank body, and nuts embedded in the side walls of the tank body corresponding to the buffer connector. A water injection pipe for conveying coolant is connected to the top of the tank body.

[0009] The buffer connector consists of a vertically arranged connecting arm one and a connecting arm two, and a buffer part arranged horizontally between the connecting arm one and the connecting arm two. The connecting arm one is connected to the forklift frame by a threaded fastener, and the connecting arm two is connected to a nut by a threaded fastener.

[0010] As a further optimization of this utility model, at least two nuts are provided on the housing.

[0011] As a further optimization of this utility model, the box body is provided with countersunk holes corresponding to the nuts, the outer circumference of the nuts is uniformly provided with grooves, and the inner side of the countersunk hole is provided with a protruding ridge corresponding to the groove.

[0012] As a further optimization of this utility model, the buffer part is a connecting arm three disposed between the lower end of the connecting arm one and the upper end of the connecting arm two, and the connecting arm three is integrally formed with the connecting arm one and the connecting arm two.

[0013] As a further optimization of this utility model, the buffer part includes a sleeve and a connecting rod slidably disposed on the inner side of the sleeve, and a spring disposed on the outer side of the sleeve. The sleeve is fixedly disposed on the first connecting arm, the connecting rod is fixedly disposed on the second connecting arm, and the spring abuts between the first connecting arm and the second connecting arm.

[0014] As a further optimization of this utility model, a stop is fixedly provided on the outer side of the connecting rod, and a sliding groove corresponding to the stop is provided on the side wall of the sleeve, and an elastic element is provided at the end of the stop.

[0015] As a further optimization of this utility model, the top of the box is provided with a water inlet 1 and a water inlet 2, the outlet of the water inlet pipe is connected to one side of the water inlet 1, and the water inlet 2 is provided with a top cover.

[0016] As a further optimization of this utility model, the forklift frame includes a frame body and a mounting plate fixedly mounted on the frame body, and the connecting arm is fixed to the top of the mounting plate by threaded fasteners.

[0017] The beneficial effects of this utility model are as follows:

[0018] 1) This utility model uses a buffer connector in conjunction with a nut and threaded fasteners to install the housing on the forklift frame. The nut is embedded in the side wall of the housing. The connection structure between the forklift frame and the housing does not penetrate the side wall of the housing, thus avoiding coolant leakage at the connection structure on the housing.

[0019] 2) The housing of this utility model is provided with two water inlets, one of which is connected to the water inlet pipe. Coolant can be injected into the housing without opening the top cover, preventing coolant leakage at the top cover. In addition, since a buffer part is provided laterally between the connecting arm one and the connecting arm two of the buffer connector, the impact between the housing and the nut and the water inlet pipe can be reduced, further reducing the risk of leakage of the auxiliary water tank. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the box structure of this utility model;

[0022] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0023] Figure 4 This is a schematic diagram of the buffer connector structure according to the first embodiment of this utility model;

[0024] Figure 5 This is a schematic diagram of the buffer connector structure according to the second embodiment of this utility model;

[0025] Figure 6 This is a schematic diagram of the internal structure of the sleeve of this utility model.

[0026] In the diagram: 1. Box body; 2. Buffer connector; 3. Nut; 4. Water inlet pipe; 5. Countersunk hole; 6. Water inlet one; 7. Water inlet two; 8. Top cover; 21. Connecting arm one; 22. Connecting arm two; 23. Connecting arm three; 24. Sleeve; 25. Connecting rod; 26. Spring; 27. Stop; 28. Elastic element; B. Mounting plate. Detailed Implementation

[0027] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0028] First Embodiment

[0029] like Figure 1-3 As shown, this embodiment relates to a leak-proof auxiliary water tank for forklifts. The auxiliary water tank includes a tank body 1 mounted on the forklift frame and a buffer connector 2 located between the forklift frame and the tank body 1. Nuts 3 are embedded in the side walls of the tank body 1 corresponding to the buffer connector 2. A water injection pipe 4 for conveying coolant is connected to the top of the tank body 1. The side wall of the tank body 1 has countersunk holes 5 corresponding to the nuts 3, and the nuts 3 are pre-embedded in the countersunk holes 5. Grooves are evenly provided on the outer periphery of the nuts 3, and protrusions corresponding to the grooves are provided on the inner side of the countersunk holes 5, so that the nuts 3 and the countersunk holes 5 are tightly connected. The tank body 1 of the auxiliary water tank is connected to the forklift frame through the nuts 3 pre-embedded in the side wall of the tank body 1, the buffer connector 2, and threaded fasteners. The connection structure between the forklift frame and the tank body 1 does not penetrate the side wall of the tank body 1, thus preventing coolant leakage at the connection structure on the tank body 1.

[0030] The buffer connector 2 consists of a vertically arranged connecting arm 1 21 and a connecting arm 22, and a buffer portion arranged laterally between the connecting arm 1 21 and the connecting arm 22. The forklift frame includes a frame body and a mounting plate B fixedly mounted on the frame body. The connecting arm 1 21 is fixedly mounted on the top of the mounting plate B near the housing 1 by threaded fasteners. The connecting arm 22 is fixedly mounted on the side of the nut 3 near the mounting plate B by threaded fasteners. The threaded fasteners are preferably bolts. At least two nuts 3 are provided on the side wall of the housing 1 to ensure that the buffer connector 2 is securely fixed to the housing 1. Because a buffer portion is provided in the buffer connector 2, it can reduce the impact force generated at the countersunk hole 5 position when the forklift is working, and reduce the impact on the housing 1 and the coolant inside the housing 1, further avoiding leakage of the auxiliary water tank.

[0031] Specifically, please refer to Figure 4 In this embodiment, the buffer part is a connecting arm 3 23 located between the lower end of connecting arm 1 21 and the upper end of connecting arm 22. Connecting arm 3 23 is integrally formed with connecting arm 1 21 and connecting arm 22. The buffer connector 2 in this embodiment is a Z-shaped sheet metal part, which is formed by bending connecting arm 1 21 and connecting arm 22 through sheet metal processing, making it easy to process. The connecting arm 3 23 formed between connecting arm 1 21 and connecting arm 22 can play a buffering role. When the forklift frame or housing 1 is subjected to external impact, the buffering of connecting arm 3 23 can prevent stress concentration at the threaded fasteners, prevent the connection between the buffer connector 2 and the forklift frame and housing 1 from loosening, and also reduce the risk of coolant leakage from housing 1. In other embodiments, the connecting arm 21, connecting arm 22 and connecting arm 23 of the buffer connector 2 can also be fixedly connected together by welding. In addition, the two ends of the connecting arm 23 can also be fixed to other parts of the connecting arm 21 and connecting arm 22 to form a buffer connector 2 of other shapes. For example, the shape of the buffer connector 2 can also be n-shaped or H-shaped.

[0032] Furthermore, such as Figure 2 and Figure 4As shown, the top of the housing 1 is equipped with a water inlet 6 and a water inlet 7. The outlet of the water inlet pipe 4 is connected to one side of the water inlet 6. The water inlet 7 is equipped with a top cover 8, and a seal is provided at the connection between the water inlet pipe 4 and the water inlet 6. When coolant needs to be injected, the top cover 8 can be opened to inject coolant through the water inlet 7; alternatively, coolant can be injected through the water inlet pipe 4 into the water inlet 6. Because the housing 1 has a water inlet 6 connected to the water inlet pipe 4, it is not necessary to frequently open the top cover 8 to inject coolant, reducing leakage caused by insufficient connection of the top cover 8. In addition, because the aforementioned buffer connector 2 has a buffer part, the connection between the water inlet pipe 4 and the water inlet 6 can also be buffered and protected when the housing 1 or the forklift frame is impacted.

[0033] Second Embodiment

[0034] like Figure 5 and Figure 6 As shown, this embodiment relates to another type of leak-proof auxiliary water tank for forklifts. The difference between this embodiment and the previous embodiment lies in the construction of the buffer connector 2. The buffer connector 2 in this embodiment also has a connecting arm 21 and a connecting arm 22. The connecting arm 21 is connected to the mounting plate B via threaded fasteners, and the connecting arm 22 is connected to a nut 3 embedded in the side wall of the tank 1 via threaded fasteners. It should be noted that the buffer part in this embodiment has strong lateral buffering capacity. This buffer part includes a sleeve 24, a connecting rod 25 slidably disposed inside the sleeve 24, and a spring 26 disposed outside the sleeve 24. The sleeve 24 is fixedly disposed on the connecting arm 21, the connecting rod 25 is fixedly disposed on the connecting arm 22, and the spring 26 abuts against the connecting arm 21 and the connecting arm 22. When the forklift frame or tank 1 is subjected to a horizontal impact, the connecting rod 25 and the sleeve 24 can slide relative to each other in the horizontal direction, and the spring 26 provides buffering. This can further reduce the impact on the auxiliary water tank and lower the risk of leakage.

[0035] Furthermore, two stoppers 27 are fixedly provided on the outer side of the connecting rod 25, and a groove corresponding to the stopper 27 is provided on the side wall of the sleeve 24. An elastic element 28 is provided at the end of the stopper 27. The elastic element 28 reduces the impact between the stopper 27 and the sleeve 24. The stopper 27 is a hard protrusion, and the elastic element 28 is preferably a rubber pad. The buffer connector 2 limits the connecting rod 25 by stopping the stoppers 27, restricting the displacement of the connecting rod 25 away from the sleeve 24, so that the spring 26 between the first connecting arm 21 and the second connecting arm 22 is always in a compressed state, so that the buffer connector 2 has a certain effective stiffness while having a buffering capacity in the horizontal direction, improving the stability of the buffer connector 2 and reducing the displacement amplitude of the housing 1.

[0036] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A leak-proof auxiliary water tank for forklifts, comprising a tank body (1) mounted on the forklift frame, characterized in that: A buffer connector (2) is provided between the forklift frame and the housing (1), and nuts (3) are embedded on the side walls of the housing (1) and the buffer connector (2), and a water injection pipe (4) for conveying coolant is connected to the top of the housing (1). The buffer connector (2) consists of a vertically arranged connecting arm one (21) and a connecting arm two (22), and a buffer part arranged horizontally between the connecting arm one (21) and the connecting arm two (22). The connecting arm one (21) is connected to the forklift frame by a threaded fastener, and the connecting arm two (22) is connected to the nut (3) by a threaded fastener.

2. The forklift anti-leakage auxiliary water tank according to claim 1, characterized in that: At least two nuts (3) are provided on the housing (1).

3. The forklift anti-leakage auxiliary water tank according to claim 1, characterized in that: The box (1) is provided with countersunk holes (5) that correspond one-to-one with the nuts (3). The outer periphery of the nuts (3) is uniformly provided with grooves, and the inner side of the countersunk holes (5) is provided with protrusions that correspond to the grooves.

4. The forklift anti-leakage auxiliary water tank according to claim 1, characterized in that: The buffer part is a connecting arm three (23) disposed between connecting arm one (21) and connecting arm two (22), and the connecting arm three (23) is integrally formed with connecting arm one (21) and connecting arm two (22).

5. A forklift anti-leakage auxiliary water tank according to claim 1, characterized in that: The buffer part includes a sleeve (24) and a connecting rod (25) slidably disposed inside the sleeve (24), and a spring (26) disposed outside the sleeve (24). The sleeve (24) is fixedly disposed on the first connecting arm (21), and the connecting rod (25) is fixedly disposed on the second connecting arm (22).

6. A forklift anti-leakage auxiliary water tank according to claim 5, characterized in that: The connecting rod (25) is fixed with a stop (27) on the outside, and the sleeve (24) has a sliding groove corresponding to the stop (27) on its side wall. The end of the stop (27) is provided with an elastic element (28).

7. A forklift anti-leakage auxiliary water tank according to claim 1, characterized in that: The top of the box (1) is provided with a water inlet 1 (6) and a water inlet 2 (7). The outlet of the water inlet pipe (4) is connected to one side of the water inlet 1 (6). The water inlet 2 (7) is provided with a top cover (8).

8. A leak-proof auxiliary water tank for forklifts according to claim 1, characterized in that: The forklift frame includes a frame body and a mounting plate fixedly mounted on the frame body, and the connecting arm (21) is fixed to the top of the mounting plate by threaded fasteners.

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