Cleaning suction-type sewer scavenger rear door with opening and closing protection function

Abstract

The cleaning suction-type sewer scavenger rear door with the opening and closing protection function comprises a locking screw rod assembly and an opening and closing mechanism assembly, the locking screw rod assembly comprises a screw rod and a sleeve, the upper end of the screw rod is movably connected with the tail end of the sleeve in a matched mode, a first fixing support is arranged at the tail end of the screw rod, a second fixing support is arranged at the tail end of the sleeve, and the opening and closing mechanism assembly is arranged on the opening and closing mechanism assembly. The end, connected with the sleeve, of the second fixing support is provided with a locking support supported between the support side plates, and the tail end of the sleeve is connected with a proximity switch through a third fixing support. According to the cleaning suction-type sewer scavenger rear door with the opening and closing protection function, after the rear door is normally locked, the distance between the locking screw and the proximity switch is located at the switch operating distance, at the moment, the proximity switch works, the problems that the locking screw is damaged during misoperation and the like are solved, the operation safety is effectively improved, and the service life of the cleaning suction-type sewer scavenger rear door is prolonged. And the problems of vehicle fault and part damage caused by misoperation are avoided.

Description

Technical Field

[0001] The utility model relates to a sewage cleaning and suction truck, in particular to a rear door of the sewage cleaning and suction truck with an opening and closing protection function. Background Art

[0002] With the expansion of urban scale and the increase of population density, the problem of urban sewage and sludge treatment has become more and more serious. Traditional sludge treatment methods, such as manual excavation, are not only labor-intensive and inefficient, but also have serious safety hazards and environmental pollution problems. Therefore, the emergence of sewage cleaning and suction trucks has become the key to solving this problem.

[0003] In existing sewage cleaning and suction trucks, the rear door of the sewage tank is mostly opened by hydraulic means and locked by screws. When the rear door needs to be opened, the locking screw needs to be removed and then hydraulic pressure is operated to open it. If the operator makes a mistake before operating the hydraulic pressure, such as forgetting to remove the locking screw, the screw or hydraulic cylinder will be damaged. Summary of the invention

[0004] The utility model aims to provide a rear door of a cleaning and suction sewage vehicle with an opening and closing protection function, which can avoid problems such as vehicle failure and parts damage caused by operator's misoperation.

[0005] In order to solve the above technical problems, the technical solution of the utility model is as follows:

[0006] A rear door of a cleaning and suction truck with an opening and closing protection function, characterized in that it includes a locking screw assembly and an opening and closing mechanism assembly, wherein the locking screw assembly includes a screw and a sleeve, the upper end of the screw is movably connected to the tail end of the sleeve, the tail end of the screw is provided with a fixed bracket one, the tail end of the sleeve is provided with a fixed bracket two, one end of the fixed bracket two connected to the sleeve is provided with a locking support supported between the bracket side plates, and the tail end of the sleeve is connected to a proximity switch through a fixed bracket three.

[0007] Improvement on the above technical solution: the sleeve is fixed on the rear door through a second fixing bracket, and the screw is fixed on a rear door frame of the tank body corresponding to the rear door through a first fixing bracket.

[0008] Further improvement of the above technical solution: the opening and closing mechanism assembly includes a hydraulic cylinder, a fixing bracket four is provided on the side of the tank body, a fixing block is provided on the rear door, the cylinder body of the hydraulic cylinder is fixed to the side of the tank body through the fixing bracket four, and the piston rod of the hydraulic cylinder is fixed to the rear door through the fixing block.

[0009] A further improvement to the above technical solution: the screw assembly and the opening and closing mechanism assembly are symmetrically arranged on the rear door and on the rear door frame of the tank body corresponding to the rear door. Beneficial Effects

[0010] When the rear door of the cleaning and suction truck with the opening and closing protection function is used and the rear door is locked normally, the distance between the locking screw and the proximity switch is at the switch action distance, and the proximity switch works at this time, thereby avoiding problems such as damage to the locking screw due to misoperation, effectively improving the safety of operation, and avoiding problems such as vehicle failure and parts damage caused by misoperation. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings required for describing the embodiment 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 work.

[0012] Figure 1 for Figure 4 A partial enlarged view of .

[0013] Figure 2 It is a structural schematic diagram of the locking screw assembly.

[0014] Figure 3 This is a schematic diagram of the installation structure of the proximity switch.

[0015] Figure 4 A schematic diagram of the tank structure.

[0016] In the accompanying drawings, the list of components represented by each reference numeral is as follows: rear door 1, hydraulic cylinder 2, screw 3, proximity switch 4, locking support 5, sleeve 6, fixing block 7, fixing bracket one 8, fixing bracket two 9, fixing bracket three 10, fixing bracket four 11, tank body 12. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to 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 in 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.

[0018] See also Figure 1-4 As shown, a rear door of a cleaning and suction truck with an opening and closing protection function includes a locking screw assembly and an opening and closing mechanism assembly. The locking screw assembly includes a screw 3 and a sleeve 6. The upper end of the screw 3 is movably connected with the tail end of the sleeve 6. The tail end of the screw 3 is provided with a fixed bracket 1 8, and the tail end of the sleeve 6 is provided with a fixed bracket 2 9. The end of the fixed bracket 2 9 connected to the sleeve 6 is provided with a locking support 5 supported between the bracket side plates, and the tail end of the sleeve 6 is connected to a proximity switch 4 through a fixed bracket 3 10.

[0019] Furthermore: the sleeve 6 is fixed to the rear door 1 through the second fixing bracket 9, and the screw is fixed to the rear door frame of the tank body 12 corresponding to the rear door 1 through the first fixing bracket.

[0020] Furthermore: the opening and closing mechanism assembly includes a hydraulic cylinder 2, a fixing bracket 11 is provided on the side of the tank body 12, a fixing block 7 is provided on the rear door 1, the cylinder body of the hydraulic cylinder 2 is fixed to the side of the tank body 12 through the fixing bracket 11, and the piston rod of the hydraulic cylinder 2 is fixed to the rear door 1 through the fixing block 7.

[0021] Furthermore: the screw assembly and the opening and closing mechanism assembly are symmetrically arranged on the rear door and on the rear door frame of the tank body 12 corresponding to the rear door 1.

[0022] The hydraulic oil cylinder in the utility model is connected with the tank body, the piston rod is connected with the rear door, the rear door is locked by a screw rod, and the hydraulic oil cylinder is mainly used for opening the door.

[0023] When the rear door is locked normally, the distance between the locking screw and the proximity switch is within the switch action distance. At this time, the proximity switch works, cutting off the control of the hydraulic cylinder, and the operating hydraulic cylinder does not work, avoiding problems such as damage to the locking screw due to misoperation.

[0024] The utility model normally opens the rear door in the following process: remove the locking screw, at which time the screw is away from the proximity switch, the switch does not work, and the hydraulic valve can be operated to control the oil cylinder normally.

[0025] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0026] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A rear door of a cleaning and suction truck with an opening and closing protection function, characterized in that: The invention comprises a locking screw assembly and an opening and closing mechanism assembly, wherein the locking screw assembly comprises a screw (3) and a sleeve (6), wherein the upper end of the screw (3) is movably connected to the rear end of the sleeve (6), the rear end of the screw (3) is provided with a fixing bracket 1 (8), the rear end of the sleeve (6) is provided with a fixing bracket 2 (9), one end of the fixing bracket 2 (9) connected to the sleeve (6) is provided with a locking support (5) supported between bracket side plates, and the rear end of the sleeve (6) is connected to a proximity switch (4) via a fixing bracket 3 (10).

2. The rear door of the cleaning and suction truck with opening and closing protection function according to claim 1 is characterized in that: The sleeve (6) is fixed to the rear door (1) via a second fixing bracket (9), and the screw is fixed to a rear door frame of the tank body (12) corresponding to the rear door (1) via a first fixing bracket.

3. The rear door of the cleaning and suction truck with opening and closing protection function according to claim 1 or 2, characterized in that: The opening and closing mechanism assembly comprises a hydraulic cylinder (2), a fixing bracket four (11) is provided on the side of the tank body (12), a fixing block (7) is provided on the rear door (1), the cylinder body of the hydraulic cylinder (2) is fixed to the side of the tank body (12) via the fixing bracket four (11), and the piston rod of the hydraulic cylinder (2) is fixed to the rear door (1) via the fixing block (7).

4. The rear door of the cleaning and suction truck with opening and closing protection function according to claim 3 is characterized in that: The screw rod assembly and the opening and closing mechanism assembly are symmetrically arranged on the rear door and on the rear door frame of the tank body (12) corresponding to the rear door (1).

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