Storage rack driving structure

Abstract

The utility model discloses a storage rack driving structure in the technical field of fire hose vehicles, which comprises a hollow speed reducer with a speed reducer hollow shaft, a sliding shaft check block is arranged on the hollow speed reducer, a third pin is arranged at the bottom end of the sliding shaft check block, a sliding shaft is inserted into the speed reducer hollow shaft in a sliding mode, and a second pin is arranged at the bottom end of the sliding shaft check block. The end, movably penetrating through the outer side wall of the sliding shaft check block, of the sliding shaft is fixedly connected with a sliding shaft limiting block, the other end of the sliding shaft is connected with a sliding shaft protrusion, and a sliding shaft limiting groove matched with the third pin is formed in the outer wall of the end, away from the sliding shaft protrusion, of the sliding shaft. One side of the sliding shaft is tightly attached to the sliding shaft stop block, and the other side of the sliding shaft is tightly attached to the sliding shaft. According to the device, telescopic adjustment can be conveniently conducted on the sliding shaft in the hollow shaft of the speed reducer, position fixing can be conveniently conducted on the sliding shaft after sliding telescopic, and therefore the use requirement is met.

Description

Technical Field

[0001] The utility model relates to the technical field of fire hose vehicles, and particularly relates to a driving structure for a storage rack. Background Art

[0002] In the commonly used driving structures of current fire hose vehicles, the installation relationship between the sliding shaft and the hollow shaft of the speed reducer is mostly a fixed installation relationship. Although this design is simple, there are a series of technical problems in actual applications: Since the sliding shaft and the hollow shaft of the speed reducer are fixedly installed, when it is necessary to perform telescopic adjustment on the sliding shaft according to different usage environments or operation requirements, this fixed installation method cannot quickly adapt to changes, resulting in inflexible adjustment; In order to achieve the telescopic adjustment of the sliding shaft, additional tools or equipment need to be used, which not only increases the complexity of the operation but also may extend the preparation time, affecting the quick response ability in case of emergency; Once the fixedly installed sliding shaft and the hollow shaft of the speed reducer fail or need to be repaired, the disassembly and replacement process may be relatively cumbersome, increasing the maintenance cost and maintenance time; The fixed installation relationship limits the adaptability of this driving structure and is difficult to meet the special requirements of different types of fire trucks or different usage scenarios, restricting its application scope; Insufficient space utilization: The fixedly installed sliding shaft cannot make full use of the space inside the hollow shaft of the speed reducer, resulting in space waste, the structure not being compact enough, and affecting the layout and volume of the overall equipment; Long-term fixed installation may cause wear or looseness between the sliding shaft and the hollow shaft of the speed reducer, affecting the stability and reliability of the entire driving structure; The fixedly installed sliding shaft and the hollow shaft of the speed reducer may not be suitable for extreme temperature, humidity or other special environmental conditions, affecting the performance of the fire truck in various environments.

[0003] In summary, the fixed installation relationship in the prior art has problems such as inflexible adjustment, complex operation, difficult maintenance, poor adaptability, insufficient space utilization, reliability problems, reduced safety, cost problems, difficult replacement, and poor environmental adaptability. When it is necessary to perform sliding telescopic adjustment on the sliding shaft in the hollow shaft of the speed reducer, it cannot meet the usage requirements. Based on this, we propose a driving structure for a storage rack. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the above problems existing in the prior art, and provide a driving structure for a storage rack, which is convenient for telescopic adjustment of the sliding shaft in the hollow shaft of the speed reducer and is convenient for fixing the position of the sliding shaft after sliding and telescoping, so as to meet the usage requirements.

[0005] To achieve the above technical purpose and reach the above technical effect, the utility model is realized through the following technical solutions:

[0006] A storage rack drive structure includes a hollow speed reducer with a hollow shaft of the speed reducer. A sliding shaft stopper is provided on the hollow speed reducer. A third pin is provided at the bottom end of the sliding shaft stopper. A sliding shaft is slidably inserted into the hollow shaft of the speed reducer. One end of the sliding shaft that movably penetrates the outer wall of the sliding shaft stopper is fixedly connected with a sliding shaft limit block. The other end of the sliding shaft is connected with a sliding shaft protrusion. A sliding shaft limit groove that cooperates with the third pin is provided on the outer wall of the end of the sliding shaft away from the sliding shaft protrusion. A compression spring is sleeved on the sliding shaft. The compression spring is located in the hollow shaft of the speed reducer, closely attached to the sliding shaft stopper on one side and closely attached to the sliding shaft on the other side. A sliding shaft key is inlaid and installed on the outer side of the sliding shaft close to the sliding shaft protrusion.

[0007] Preferably, bolt fixing holes are provided on the outer wall of the sliding shaft stopper.

[0008] Based on the above technical features, by using bolts in cooperation with the bolt fixing holes, it is convenient to install and fix the sliding shaft stopper on the hollow speed reducer.

[0009] In summary, the present utility model has at least one of the following beneficial effects: By pulling the sliding shaft backward, the compression spring in the hollow shaft of the speed reducer is compressed, and then the pin shaft of the third pin is inserted into the sliding shaft limit groove to limit the sliding shaft. When it is necessary to extend the sliding shaft for use, the pin shaft of the third pin is disengaged from the sliding shaft limit groove, and the elastic reset of the compression spring causes the sliding shaft to slide outwards in the hollow shaft of the speed reducer, so as to facilitate the telescopic adjustment of the sliding shaft in the hollow shaft of the speed reducer and facilitate the position fixing of the sliding shaft after telescopic sliding, thus meeting the use requirements. Description of the Drawings

[0010] Figure 1 is a schematic structural diagram of the use state of the present utility model Figure 1 ;

[0011] Figure 2 is a schematic structural diagram of the use state of the present utility model Figure 2 ;

[0012] Figure 3 is an exploded structural diagram of the present utility model;

[0013] Figure 4 is for the present utility model Figure 2 partial position cross-sectional structural state schematic diagram;

[0014] Figure 5 is for the present utility model Figure 1 partial position cross-sectional structural state front view;

[0015] Figure 6 is a schematic diagram of the installation position of the storage rack drive structure of the present practical model in a folding fire truckFigure 1 ;

[0016] Figure 7 Schematic diagram of the installation position of the storage rack drive structure of this utility model in a folding fire truck Figure 2 ;

[0017] In the accompanying drawings, the list of components represented by each reference numeral is as follows:

[0018] 1 - Right bracket, 105 - Right bracket, 6 - Storage rack, 1101 - Sliding shaft, 1102 - Third pin, 1103 - Sliding shaft protrusion, 1104 - Sliding shaft key, 1105 - Sliding shaft limiting groove, 1106 - Compression spring, 1107 - Sliding shaft stopper, 11071 - Bolt fixing hole, 1108 - Sliding shaft limiting block, 1109 - Reducer hollow shaft, 1110 - Hollow reducer, 13 - Body mounting plate. Specific embodiments

[0019] The following further elaborates on this utility model in conjunction with the attached Figures 1-7 drawings.

[0020] An embodiment provided by this utility model: As Figures 1-5 shown, a storage rack drive structure includes a hollow reducer 1110 with a reducer hollow shaft 1109. A sliding shaft stopper 1107 is provided on the hollow reducer 1110. A bolt fixing hole 11071 is formed on the outer side wall of the sliding shaft stopper 1107. By using the bolt fixing hole 11071 in cooperation with a bolt, it is convenient to install and fix the sliding shaft stopper 1107 on the hollow reducer 1110;

[0021] A third pin 1102 is provided at the bottom end of the sliding shaft stopper 1107. A sliding shaft 1101 is slidably inserted into the reducer hollow shaft 1109. A sliding shaft limiting block 1108 is fixedly connected to one end of the sliding shaft 1101 that movably penetrates the outer side wall of the sliding shaft stopper 1107. A sliding shaft protrusion 1103 is connected to the other end of the sliding shaft 1101. A sliding shaft limiting groove 1105 that cooperates with the pin shaft in the third pin 1102 is formed on the outer wall of the sliding shaft 1101 at the end away from the sliding shaft protrusion 1103; A compression spring 1106 is sleeved on the sliding shaft 1101. The compression spring 1106 is located in the reducer hollow shaft 1109, closely adhering to the sliding shaft stopper 1107 on one side and the sliding shaft 1101 on the other side to facilitate compression of the compression spring 1106; A sliding shaft key 1104 is inlaid and installed at one end of the sliding shaft 1101 close to the sliding shaft protrusion 1103 to cooperate with the key groove on the reducer hollow shaft 1109 for transmission.

[0022] As Figure 6 and Figure 7As shown, the outer wall of a group of baffles 105 connected to the right bracket 1 in the folding fire truck is fixedly installed with a body mounting plate 13, and the storage rack driving structure is installed on the outer wall of the body mounting plate 13, which is convenient for installing and fixing the storage rack driving structure on the folding fire truck.

[0023] Working principle:

[0024] By pulling the sliding shaft 1101 backward with the handheld part 1108, the compression spring 1106 is compressed in the hollow shaft 1109 of the speed reducer. When it is pulled to the position where the sliding shaft limit groove 1105 corresponds to the third pin 1102, then the pin shaft of the third pin 1102 is inserted into the sliding shaft limit groove 1105 to limit the sliding shaft 1101; when the sliding shaft 1101 needs to be extended for use, the pin shaft of the third pin 1102 is disengaged from the sliding shaft limit groove 1105, and the sliding shaft 1101 slides outward in the hollow shaft 1109 of the speed reducer through the elastic reset of the compression spring 1106, and further the sliding shaft protrusion 1103 extends outward, so as to facilitate the telescopic adjustment of the sliding shaft 1101 in the hollow shaft 1109 of the speed reducer and facilitate the position fixing of the sliding shaft 1101 after sliding and telescoping, thus meeting the use requirements.

[0025] The above are all the preferred embodiments of the present invention, and the protection scope of the present invention is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape and principle of the present invention shall be covered within the protection scope of the present invention.

Claims

1. A storage rack drive structure, comprising a hollow reducer (1110) with a hollow reducer shaft (1109), characterized in that: The hollow reducer (1110) is provided with a sliding shaft stopper (1107), the bottom end of the sliding shaft stopper (1107) is provided with a third pin (1102), a sliding shaft (1101) is slidably inserted in the hollow shaft (1109) of the reducer, and one end of the sliding shaft (1101) that movably passes through the outer wall of the sliding shaft stopper (1107) is fixedly connected with a sliding shaft limit block (1108); The other end of the sliding shaft (1101) is connected to a sliding shaft protrusion (1103); an outer wall of one end of the sliding shaft (1101) away from the sliding shaft protrusion (1103) is provided with a sliding shaft limiting groove (1105) that cooperates with the third pin (1102); a compression spring (1106) is sleeved on the sliding shaft (1101); the compression spring (1106) is located in the hollow shaft (1109) of the reducer, with one side close to the sliding shaft stopper (1107) and the other side close to the sliding shaft (1101); a sliding shaft key (1104) is embedded and installed on one end of the sliding shaft (1101) that is close to the sliding shaft protrusion (1103).

2. A storage rack driving structure according to claim 1, characterized in that: A bolt fixing hole (11071) is provided on the outer side wall of the sliding shaft stopper (1107).

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