Engineering truck cab with automatic reset device

Abstract

The utility model discloses an engineering van cab with an automatic reset device, and relates to the technical field of engineering van cabs. The cab comprises a cab body, a door frame, a closing door located on the front side of the door frame, a connecting block located on one side of the closing door, a fixing plate fixedly arranged on one side of the front end of the cab body, a rotating shaft located at one end of the connecting block and a hydraulic rod located on one side of the door frame. And; the automatic reset structure comprises an annular cylinder, a mounting cylinder, a sliding sleeve embedded in the mounting cylinder, a guide rod slidably inserted in the sliding sleeve, a first piston located at the lower end of the guide rod and slidably mounted in the mounting cylinder, a first spring connected to the outer side of the guide rod in a sleeving mode, an annular rod slidably inserted in the annular cylinder, and a second piston located at one end of the annular rod. Through the arrangement of the automatic reset structure, the problems that the interior of the cab is exposed and the safety is reduced when the closing door of the cab does not have an automatic closing function and is forgotten to be closed after being opened are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering vehicle cabs, in particular to an engineering vehicle cab with an automatic reset device. Background Technique

[0002] The cab of an engineering vehicle is one of its important components. The cab is an important place for the operator to perform various tasks and operations, undertaking functions such as decision-making, monitoring, and guiding. The cab of an engineering vehicle usually has an opening and closing door, which is not only a passage for entering and exiting the cab, but also ensures the sealing inside and outside the cab in case of accidents or emergencies, preventing environmental elements such as dust and water vapor from entering the cab and maintaining a comfortable working environment.

[0003] A Chinese patent discloses an engineering vehicle cab (authorized announcement number CN220032075U). The patented technology includes a cab frame, the cab frame includes a chassis, and a column mechanism is circumferentially arranged on the chassis. The column mechanism includes two front columns and two rear columns. The front columns and the rear columns are fixed to the chassis, and the free ends of the front columns and the rear columns are provided with a top frame; a skin assembly, which is formed outside the cab frame, includes an outer skin surrounding the outside of the column mechanism structure and a top skin covering the top frame; and a rearview mirror assembly, which is formed on one side of the top skin. Among them, the rearview mirror assembly includes a protrusion integrally formed with the top skin. The inside of the protrusion is hollow, forming a passage for a rod to pass through. A rearview mirror is provided at the free end of the passage, and a sealing ring is pressed between the passages. The utility model is suitable for harsh working conditions and can effectively prevent the damage and moisture of the circuit.

[0004] This patented technology can face harsh working conditions during use, but there are still deficiencies in the process of use. The closing door of the cab does not have the function of automatically closing. When it is forgotten to be closed after being opened, the inside of the cab is exposed and the safety is reduced. Therefore, those skilled in the art have provided an engineering vehicle cab with an automatic reset device to solve the problems raised in the above background technique. Content of the Utility Model

[0005] 1. Technical Solution

[0006] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0007] The utility model is an engineering vehicle cab with an automatic reset device, including

[0008] a cab body, including a door frame, a closing door located in front of the door frame, connecting blocks symmetrically distributed on one side of the closing door, a fixing plate fixedly arranged on one side of the front end of the cab body, a rotating shaft located at one end of the connecting block and rotatably installed inside the fixing plate, and a hydraulic rod located on one side of the door frame;

[0009] and;

[0010] An automatic reset structure, including a ring cylinder and an installation cylinder which are fixedly arranged at the front end of the cab body and communicate with each other, a sliding sleeve embedded and installed inside the installation cylinder, a guide rod slidably inserted inside the sliding sleeve, a first piston located at the lower end of the guide rod and slidably installed inside the installation cylinder, a first spring sleeved outside the guide rod and connected to the sliding sleeve and the first piston at its upper and lower ends respectively, a ring rod slidably inserted inside the ring cylinder, and a second piston located at one end of the ring rod and slidably installed inside the ring cylinder.

[0011] Furthermore, a sensor is arranged at one end of the door frame, and an induction handle is arranged at the front end of the closing door;

[0012] Specifically, when the sensor senses that the closing door fits against the door frame, it transmits a signal to the processing module.

[0013] Furthermore, a positioning hole is opened inside one end of the closing door, and the telescopic end of the hydraulic rod is slidably inserted inside the positioning hole;

[0014] Specifically, after the telescopic end of the hydraulic rod is inserted inside the positioning hole, the door frame and the door body are fixed together.

[0015] Furthermore, a bracket connected to the connecting block is arranged at one end of the ring rod;

[0016] Specifically, when the closing door drives the connecting block to rotate, the ring rod is driven to rotate through the bracket.

[0017] Furthermore, equidistantly distributed installation holes are opened inside the upper end of the ring rod, installation holes are opened inside the upper end of the ring cylinder, and inserting rods are slidably inserted into the corresponding installation holes inside the ring cylinder and the ring rod;

[0018] Specifically, when the inserting rods are inserted into the corresponding installation holes inside the ring cylinder and the ring rod, the ring rod is limited.

[0019] Furthermore, a guide plate is arranged at the front end of the cab body, the upper end of the inserting rod is slidably inserted inside the guide plate, a collar is sleeved on the outer wall of the lower end of the inserting rod, and a second spring connected to the collar and the guide rod is sleeved outside the guide rod;

[0020] Specifically, the inserting rod is slidably supported inside the guide plate, and the inserting rod is elastically supported by the second spring.

[0021] 2. Beneficial effects

[0022] Compared with the prior art, the advantages of the present utility model are as follows:

[0023] In the present utility model, the closing door installed by rotation is rotatably installed at the front end of the door frame to ensure that personnel can enter and exit the cab body;

[0024] Meanwhile, after the closing door rotates, it drives the ring rod to rotate, pushing the piston to squeeze the inside of the pair of ring cylinders, and the pressure acts on the inside of the installation cylinder. When the force applied to the closing door is lost, the piston is pushed down by the spring inside the installation cylinder. When opening the door, the squeezing force during rotation causes the pressure medium to act on the piston II in the reverse direction, pushing the plug rod to rotate in the reverse direction, thereby driving the closing door to automatically close, improving the safety during the use of the cab of the engineering vehicle.

[0025] Of course, it is not necessary for any product implementing the present utility model to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model, and those of ordinary skill in the art can obtain other drawings based on these drawings without creative efforts.

[0027] Figure 1 It is the front view three-dimensional structure schematic diagram of the present utility model;

[0028] Figure 2 It is the rear view three-dimensional structure schematic diagram of the closing door of the present utility model;

[0029] Figure 3 It is the upward sectional view three-dimensional structure schematic diagram of the induction handle of the present utility model;

[0030] Figure 4 It is the top view three-dimensional structure schematic diagram of the ring rod of the present utility model;

[0031] Figure 5 It is the main sectional view and the top sectional view three-dimensional structure schematic diagram of the installation cylinder and the ring through of the present utility model.

[0032] In the drawings, the list of components represented by each reference numeral is as follows:

[0033] 100, cab body; 101, door frame; 102, closing door; 103, connecting block; 104, fixing plate; 105, rotating shaft; 106, induction handle; 107, hydraulic rod; 108, inductor; 109, positioning hole;

[0034] 200, automatic reset structure; 201, sliding sleeve; 202, installation cylinder; 203, guide rod; 204, spring I; 205, piston I; 206, ring cylinder; 207, bracket; 208, ring rod; 209, installation hole; 210, piston II; 211, collar; 212, spring II; 213, plug rod; 214, guide plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0035] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the following provides a detailed description of the specific embodiments of the present utility model in conjunction with the accompanying drawings.

[0036] In the following description, many specific details are set forth in order to provide a thorough understanding of the present utility model. However, the present utility model may also be implemented in other ways different from those described herein. Those skilled in the art can make similar generalizations without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0037] Secondly, the present utility model is described in detail in conjunction with the schematic diagrams. When detailing the embodiments of the present utility model, for the sake of clarity, the cross-sectional views showing the device structure will be enlarged locally out of the general proportion, and the schematic diagrams are only examples and should not limit the scope of protection of the present utility model herein. In addition, in actual production, three-dimensional spatial dimensions including length, width, and depth should be included.

[0038] To make the purpose, technical solution, and advantages of the present utility model clearer, the following will further describe the embodiments of the present utility model in detail in conjunction with the accompanying drawings.

[0039] Embodiment 1

[0040] Please refer to Figures 1-5 As shown, this embodiment is an engineering vehicle cab with an automatic reset device, including

[0041] The cab body 100, including a door frame 101, a closing door 102 located in front of the door frame 101, connecting blocks 103 symmetrically distributed on one side of the closing door 102, a fixing plate 104 fixedly disposed at one end of the front end of the cab body 100, a rotating shaft 105 located at one end of the connecting block 103 and rotatably installed inside the fixing plate 104, and a hydraulic rod 107 located on one side of the door frame 101;

[0042] An inductor 108 is provided at one end of the door frame 101, and an induction handle 106 is provided at the front end of the closing door 102;

[0043] A positioning hole 109 is opened inside one end of the closing door 102, and the telescopic end of the hydraulic rod 107 is slidably inserted into the positioning hole 109;

[0044] Use the cab body 100;

[0045] When the grasping induction handle 106 is grasped, the induction module on the handle transmits a signal to the controller. The processing module in the controller processes the received information and issues an instruction to control the telescopic end of the hydraulic rod 107 to move out of the positioning hole 109, closing the door 102 to achieve rotational opening and closing. The closing door 102 is rotationally supported on the fixed plate 104 through the rotating shaft 105. The closing door 102 rotates and opens and closes in front of the door frame 101. At the same time, after the closing door 102 is closed, the sensor 108 detects the signal of the closing of the closing door 102, and the signal is transmitted to the controller. The controller controls the telescopic end of the hydraulic rod 107 to be inserted into the positioning hole 109, and the closing door 102 is fixed.

[0046] Embodiment 2

[0047] Please refer to Figures 1-5 As shown, this embodiment further includes on the basis of Embodiment 1;

[0048] And;

[0049] An automatic reset structure 200, including an annular cylinder 206 and a mounting cylinder 202 that are fixedly arranged at the front end of the cab body 100 and communicate with each other, a sliding sleeve 201 embedded and installed inside the mounting cylinder 202, a guide rod 203 slidably inserted inside the sliding sleeve 201, a piston one 205 located at the lower end of the guide rod 203 and slidably installed inside the mounting cylinder 202, a spring one 204 sleeved outside the guide rod 203 and connected to the sliding sleeve 201 and the piston one 205 at its upper and lower ends respectively, a ring rod 208 slidably inserted inside the annular cylinder 206, and a piston two 210 located at one end of the ring rod 208 and slidably installed inside the annular cylinder 206.

[0050] A bracket 207 connected to the connecting block 103 is arranged at one end of the ring rod 208;

[0051] Equidistantly distributed mounting holes 209 are opened inside the upper end of the ring rod 208, mounting holes 209 are opened inside the upper end of the annular cylinder 206, and plug rods 213 are slidably inserted into the corresponding mounting holes 209 inside the annular cylinder 206 and the ring rod 208;

[0052] A guide plate 214 is arranged at the front end of the cab body 100, the upper end of the plug rod 213 is slidably inserted inside the guide plate 214, a collar 211 is sleeved on the outer wall of the lower end of the plug rod 213, and a spring two 212 connected to the collar 211 and the guide rod 203 is sleeved outside the guide rod 203;

[0053] Use the automatic reset structure 200;

[0054] When the closing door 102 rotates, it drives the ring rod 208 to rotate inside the ring cylinder 206. The first piston 205 squeezes the space between the ring cylinder 206 and the second piston 210 of the mounting cylinder 202. The pressure medium in the space is hydraulic oil. The first piston 205 is stressed and squeezes the first spring 204. The first spring 204 is stressed and contracts, and the first spring 204 is in a state of storing energy. When the closing door 102 is relaxed and closed, the first spring 204 storing energy pushes the first piston 205 to descend through its own elasticity, pushes the second piston 210 through the hydraulic oil, drives the ring rod 208 and the closing door 102 to rotate, and the closing door 102 is closed. The closing door 102 realizes automatic closing, avoiding the problem that when the closing door 102 of the cab body 100 is forgotten to be closed, the internal space is exposed and the driving safety is reduced, and the safety during the use of the cab body 100 is improved;

[0055] When the ring rod 208 resets, the lower end of the plug rod 213 is in the positioning hole 109 inside the upper end of the ring rod 208. The extrusion force squeezes the plug rod 213. The plug rod 213 is stressed and pushes the second spring 212. The second spring 212 is stressed and contracts. The lower end briefly moves out of the positioning hole 109 and slides on the upper end of the ring rod 208. When it moves to the corresponding positioning hole 109, it is inserted into the corresponding positioning hole 109 through the elastic force of the second spring 212. Because it is continuously squeezed by the force of the first spring 204, when the ring rod 208 rotates, a resistance is applied, making the closing door 102 close slowly, avoiding the situation that the closing door 102 closing quickly is likely to pinch people, and the safety during the use of the automatic reset structure 200 is improved.

[0056] In the description of the present invention, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0057] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An engineering vehicle cab with an automatic reset device, characterized in that: including, a cab body (100), including a door frame (101), a closing door (102) located on the front side of the door frame (101), connecting blocks (103) symmetrically distributed on one side of the closing door (102), a fixing plate (104) fixedly arranged on one side of the front end of the cab body (100), a rotating shaft (105) located at one end of the connecting block (103) and rotatably installed inside the fixing plate (104), and a hydraulic rod (107) located on one side of the door frame (101); and; an automatic reset structure (200), including a ring cylinder (206) and a mounting cylinder (202) fixedly arranged at the front end of the cab body (100) and communicating with each other, a sliding sleeve (201) embedded and installed inside the mounting cylinder (202), a guide rod (203) slidably inserted inside the sliding sleeve (201), a first piston (205) located at the lower end of the guide rod (203) and slidably installed inside the mounting cylinder (202), a first spring (204) sleeved outside the guide rod (203) and connected to the sliding sleeve (201) and the first piston (205) at its upper and lower ends respectively, a ring rod (208) slidably inserted inside the ring cylinder (206), and a second piston (210) located at one end of the ring rod (208) and slidably installed inside the ring cylinder (206).

2. The cab of a construction vehicle with an automatic reset device according to claim 1, characterized in that: An inductor (108) is arranged at one end of the door frame (101), and an induction handle (106) is arranged at the front end of the closing door (102).

3. The cab of a construction vehicle with an automatic reset device according to claim 1, characterized in that: A positioning hole (109) is formed inside one end of the closing door (102), and the telescopic end of the hydraulic rod (107) is slidably inserted inside the positioning hole (109).

4. A cab of an engineering vehicle with an automatic reset device according to claim 1, characterized in that: A bracket (207) connected to the connecting block (103) is arranged at one end of the ring rod (208).

5. A cab of an engineering vehicle with an automatic reset device according to claim 1, characterized in that: Equidistantly distributed mounting holes (209) are formed inside the upper end of the ring rod (208), mounting holes (209) are formed inside the upper end of the ring cylinder (206), and inserting rods (213) are slidably inserted into the corresponding mounting holes (209) inside the ring cylinder (206) and the ring rod (208).

6. The cab of a construction vehicle with an automatic reset device according to claim 5, characterized in that: A guide plate (214) is arranged at the front end of the cab body (100), the upper end of the inserting rod (213) is slidably inserted inside the guide plate (214), a collar (211) is sleeved on the outer wall of the lower end of the inserting rod (213), and a second spring (212) connected to the collar (211) and the guide rod (203) is sleeved outside the guide rod (203).

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