Hood safety supporting device and mining dump truck

Abstract

The utility model discloses a hood safety supporting device and a mining dump truck. The hood safety supporting device comprises a mounting plate, a base and a supporting rod, wherein the mounting plate is fixed on a hood framework; the base and the supporting rod are fixed on a frame; the outer side face of the mounting plate is divided into two mounting parts, and the first mounting part is provided with two hinge points which are used for being connected with the electric cylinder and the limiting belt correspondingly. The second mounting part is provided with a chamber I capable of accommodating the end part of the rod-shaped structure; the base is provided with a chamber II capable of accommodating the end part of the rod-shaped structure; the two ends of the supporting rod abut against the interior of the cavity I and the interior of the cavity II correspondingly, and the supporting rod is used for rigidly supporting the lifted hood and preventing the hood from falling back. The safe supporting device for the hood can effectively prevent the hood from falling back due to accidental factors, so that the safety of personnel in a cabin is protected. The device is simple in structure and convenient to disassemble and assemble, extra tools are not needed, and components such as the supporting rod can be reused as other functional components.

Description

Technical Field

[0001] The utility model relates to a hood safety supporting device and belongs to the technical field of dump trucks. Background Art

[0002] The existing patent discloses an electric-controlled mechanical lifting system and a mining dump truck (CN 213442238 U), in which the electric-controlled hood is limited forward by a limit belt, but the rearward limit is only achieved by the motor itself. When maintenance personnel enter the cabin to perform operations, if the personnel in the cab mistakenly operate the electric switch or the lifting motor fails, the hood may fall back, causing injuries to the personnel in the cabin. Summary of the invention

[0003] In order to solve the existing problems, the utility model proposes a hood safety support device based on the technical solution of the existing patent (CN 213442238 U), which provides additional safety and fixed support for the hood to avoid abnormal hood tipping and falling caused by other unexpected factors, and further protect the lives of maintenance personnel.

[0004] The utility model is implemented according to the following technical solutions:

[0005] In a first aspect, the utility model provides a hood safety support device, comprising:

[0006] The mounting plate fixed to the hood frame is divided into two mounting parts on its outer side:

[0007] The first mounting component has two hinge points, which are used to connect the electric cylinder and the limiting belt respectively;

[0008] A second mounting member having a chamber I for accommodating an end of the rod-shaped structure;

[0009] A base fixed to the frame, having a chamber II for accommodating the end of the rod-shaped structure;

[0010] The two ends of the support rod are respectively against the chamber I and the chamber II, and are used to rigidly support the lifted hood to prevent the hood from falling back.

[0011] In some embodiments, the first mounting component is composed of a pair of ear plates opposite to each other, each end of the ear plate is provided with a through hole, two concentric through holes at one end of the two ear plates cooperate with the pin shaft to be hinged together with the electric cylinder, and two concentric through holes at the other end of the two ear plates cooperate with the pin shaft to be hinged together with the limiting belt.

[0012] In some embodiments, the second mounting component is an outwardly protruding groove structure, the top end of the support rod extends into the groove structure, and the support rod is limited by a safety pin installed on the groove structure to prevent the support rod from detaching from the groove structure.

[0013] In some embodiments, the groove structure is a rectangular groove with two open sides formed by diagonally mirroring two identical right-angle bent plates. The rectangular groove is provided with two protrusions opposite to each other on two side plates located on both sides of the support rod, and the protrusions are provided with limit pin holes. The safety pin is inserted into the two limit pin holes to press the support rod, so as to limit the support rod from continuing to move upward in the rectangular groove.

[0014] In some embodiments, the safety pin comprises:

[0015] A rod portion, used for being inserted into two limit pin holes;

[0016] A head, one end surface of which is fixed to the rod, and the head has two through holes arranged vertically between two side surfaces located on both sides of the rod;

[0017] One end of the open circular ring is inserted into an upper through hole on one side of the head, and the other end is inserted into a lower through hole on the other side of the head. The circular ring can be rotated on the head after being deformed by external force.

[0018] In some embodiments, a radial through hole is provided on the outer peripheral surface of the bottom of the support rod. When the support rod is not in use, the safety pin is inserted into the radial through hole to store the safety pin on the support rod.

[0019] In some embodiments, the support rod is provided with a circle of protrusions on the outer wall at a preset distance from its top surface. When the support rod is not in use, the support rod is placed into the support leg of the cab flip system, and the support rod is supported and limited by the contact between the circle of protrusions and the top surface of the support leg, thereby storing the support rod in the support leg.

[0020] In some embodiments, a reinforcement plate is provided in the support leg. After the support rod passes through the top surface of the support leg, the lower part of the support rod continues to pass downward into the reinforcement plate; the radial through hole on the support rod is located below the reinforcement plate, and the safety pin received on the support rod serves to limit the upward movement of the support rod.

[0021] In some embodiments, the base comprises:

[0022] A fixed base connected to the frame;

[0023] The lower base is a bent plate fixed on the outer side of the fixed base facing the support rod. The lower base is provided with a through hole through which the support rod can pass and abut against the outer side of the fixed base, thereby limiting the movement tendency of the support rod.

[0024] In a second aspect, the utility model provides a mining dump truck, comprising a frame and a hood, wherein the hood is hinged to the frame, and the above-mentioned hood safety support device is installed between the frame and the hood.

[0025] Beneficial effects of the utility model:

[0026] The hood safety support device of the utility model can effectively prevent the hood from falling back due to unexpected factors, thereby protecting the safety of cabin personnel. The device has a simple structure and is easy to disassemble and assemble without the need for additional tools, and components such as support rods can be reused as other functional components. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation on the present invention. Obviously, the accompanying drawings described below are only some embodiments. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0028] In the attached picture:

[0029] Figure 1 The overall structure of the hood safety support device of the utility model Figure 1 ;

[0030] Figure 2 The overall structure of the hood safety support device of the utility model Figure 2 ;

[0031] Figure 3 This is an application scenario diagram of the hood safety support device of the utility model;

[0032] Figure 4 It is a detailed view of the mounting plate and the upper top seat of the utility model;

[0033] Figure 5 It is a schematic diagram of the support rod and the safety pin of the utility model when they are retracted;

[0034] Figure 6 It is a detailed view of the fixed base and the lower base of the utility model;

[0035] Figure 7 The overall structure diagram of the safety pin of the utility model (a is a three-dimensional diagram, b is a side view);

[0036] Figure 8 Detailed view of the support legs and support rods of the utility model (a is a stereoscopic view, b is a main view).

[0037] The accompanying drawings are marked with: upper seat 1, safety pin 2, support rod 3, fixed base 4, lower base 5, mounting plate 6, support leg 7, rod 21, head 22, ring 23, a circle of protrusions 31, and reinforcement plate 71.

[0038] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0040] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0041] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] like Figure 1 , Figure 2 , Figure 3 As shown, a hood safety support device includes a mounting plate 6 fixed on the hood frame, a base and a support rod 3 fixed on the frame; the outer surface of the mounting plate 6 is divided into two mounting components, the first mounting component has two hinges, which are respectively used to connect the electric cylinder and the limiting belt; the second mounting component has a chamber I that can accommodate the end of the rod-shaped structure; the base has a chamber II that can accommodate the end of the rod-shaped structure; the two ends of the support rod 3 are respectively against chamber I and chamber II, which are used to rigidly support the lifted hood to prevent the hood from falling back.

[0043] The first installation component mentioned above is further described below.

[0044] like Figure 4 As shown, the first mounting component consists of a pair of ear plates opposite to each other, with a through hole provided at each end of the ear plates, two concentric through holes at one end of the two ear plates are hinged together with the pin shaft and the electric cylinder, and two concentric through holes at the other end of the two ear plates are hinged together with the pin shaft and the limiting belt.

[0045] It should be noted that the electric cylinder includes a motor and an electric cylinder; the electric cylinder consists of a cylinder body and a push rod, and the push rod is driven by the rotation of the motor to perform telescopic motion in the cylinder body, thereby realizing the reciprocating motion of the hood; the limit switches at both ends of the electric cylinder are used to control the end point of the push rod stroke.

[0046] The second installation component mentioned above is further described below.

[0047] like Figure 1 As shown, the second mounting component (the upper seat 1 in the figure) is an outwardly protruding groove structure, the top end of the support rod 3 extends into the groove structure, and the support rod 3 is limited by a safety pin 2 installed on the groove structure to prevent the support rod 3 from escaping from the groove structure.

[0048] Further solutions: Figure 4 As shown, the groove structure is a rectangular groove with two open sides formed by diagonally mirroring two identical right-angle bent plates. The rectangular groove is provided with two protrusions opposite to each other on the two side plates located on both sides of the support rod, and the protrusions are provided with limit pin holes. The safety pin 2 is inserted into the two limit pin holes to press the support rod 3, so as to limit the support rod 3 from continuing to move upward in the rectangular groove.

[0049] It should be noted that the openings provided in the rectangular grooves can prevent the upper seat 1 from being rusted due to water accumulation.

[0050] The above-mentioned safety pin is further explained below.

[0051] like Figure 1 , Figure 2 , Figure 7 As shown, the safety pin 2 includes a rod 21, a head 22 and an open ring 23, the rod 21 is used to be inserted into two limit pin holes; one end face of the head 22 is fixed to the rod 21, and the head 22 is provided with two through holes arranged up and down between two side surfaces located on both sides of the rod 21; one end of the open ring 23 is inserted into the upper through hole on one side of the head 22, and the other end is inserted into the lower through hole on the other side of the head 22, and the ring 23 can be rotated on the head 22 after being deformed by external force.

[0052] It should be noted that, through the deformation force of the ring 23, the ring 23, the rod 21 and the head 22 usually maintain this relative position, the ring 23 will not swing back and forth on the head 22, and the safety pin 2 will not fall off.

[0053] The above-mentioned support rod is further described below.

[0054] like Figure 5 As shown, a radial through hole is provided on the outer peripheral surface of the bottom of the support rod 3. When the support rod 3 is not in use, the safety pin 2 is inserted into the radial through hole and the safety pin 2 is stored on the support rod 3.

[0055] Further solutions: Figure 8 As shown, the support rod 3 is provided with a circle of protrusions 31 on the outer wall at a preset distance from the top surface thereof. When the support rod 3 is not in use, the support rod 3 is placed into the support leg 7 of the cab flipping system, and the support rod 3 is supported and limited by the contact between the circle of protrusions 31 and the top surface of the support leg 7, thereby storing the support rod 3 in the support leg 7.

[0056] Further solutions: Figure 8 As shown, a reinforcing plate 71 is provided in the support leg 7. After the support rod 3 passes through the top surface of the support leg 7, the lower part of the support rod 3 continues to pass downward into the reinforcing plate 71; the radial through hole on the support rod 3 is located below the reinforcing plate 71, and the safety pin 2 received on the support rod 3 serves to limit the upward movement of the support rod 3.

[0057] It should be noted that the accompanying drawings show a preferred embodiment of the support rod structure, wherein the support rod is a round rod. In actual use, the support rod is not limited to the above-mentioned round rod, but may also be a square rod.

[0058] The above base is further described below.

[0059] like Figure 6 As shown, the base includes a fixed base 4 and a lower base 5, and the fixed base 4 is connected to the frame; the lower base 5 is a bent plate, which is fixed on the outer side of the fixed base 4 facing the support rod 3, and the lower base 5 is provided with a through hole that allows the support rod 3 to pass through and then abut against the outer side of the fixed base 4, so that the movement tendency of the support rod 3 is limited by the through hole to prevent it from being out of contact with the fixed base 4.

[0060] Implementation process: Figure 3As shown, when the hood is lifted into place and needs safety support, one end of the support rod 3 passes through the through hole of the lower base 5 and abuts against the fixed base 4, and the other end of the support rod 3 abuts against the upper top seat 1 of the mounting plate 6. The safety pin passes through the limit pin hole of the upper top seat 1 to limit the support rod 3, restrict the movement trajectory of the support rod, and prevent the support rod from leaving the upper top seat 1. If the hood returns inward due to an accident, the support rod 3 will be tightly pressed between the mounting plate 6 and the fixed base 4 to ensure that the hood will not continue to move inward.

[0061] In summary, the hood safety support device described in the utility model can effectively prevent the hood from falling back due to unexpected factors, thereby protecting the safety of cabin personnel. The device has a simple structure, is easy to disassemble and assemble, does not require additional tools, and components such as support rods can be reused as other functional components.

[0062] The utility model also provides a mining dump truck, comprising a vehicle frame and a hood, wherein the hood is hinged on the vehicle frame, and the above-mentioned hood safety supporting device is installed between the vehicle frame and the hood.

[0063] In the description provided herein, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

[0064] In addition, those skilled in the art will understand that, although some embodiments described herein include certain features included in other embodiments but not other features, the combination of features of different embodiments also means being within the scope of protection of the present utility model and forming different embodiments. For example, in the above embodiments, those skilled in the art can use them in combination according to the known technical solutions and the technical problems to be solved by the present application.

[0065] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model has been disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this patent can make some changes or modify the technical content suggested above into an equivalent embodiment with equivalent changes without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the content of the technical solution of the utility model still falls within the scope of the solution of the utility model.

Claims

1. A hood safety support device, characterized in that: include: The mounting plate fixed to the hood frame is divided into two mounting parts on its outer side: The first mounting component has two hinge points, which are used to connect the electric cylinder and the limiting belt respectively; A second mounting member having a chamber I for accommodating an end of the rod-shaped structure; A base fixed to the frame, having a chamber II for accommodating the end of the rod-shaped structure; The two ends of the support rod are respectively against the chamber I and the chamber II, and are used to rigidly support the lifted hood to prevent the hood from falling back.

2. A hood safety support device according to claim 1, characterized in that: The first mounting component is composed of a pair of ear plates opposite to each other, each end of the ear plate is provided with a through hole, the two concentric through holes at one end of the two ear plates are matched with the pin shaft to be hinged together with the electric cylinder, and the two concentric through holes at the other end of the two ear plates are matched with the pin shaft to be hinged together with the limiting belt.

3. The hood safety support device according to claim 1, characterized in that: The second mounting component is a groove structure protruding outward, the top end of the support rod extends into the groove structure, and the support rod is limited by a safety pin installed on the groove structure to prevent the support rod from escaping from the groove structure.

4. A hood safety support device according to claim 3, characterized in that: The groove structure is a rectangular groove with two open sides formed by diagonally mirroring two identical right-angle bent plates. The rectangular groove is provided with two protrusions opposite to each other on two side plates located on both sides of the support rod, and the protrusions are provided with limit pin holes. The safety pin is inserted into the two limit pin holes to press the support rod to limit the support rod from continuing to move upward in the rectangular groove.

5. The hood safety support device according to claim 3, characterized in that: The safety pin comprises: A rod portion, used for being inserted into two limit pin holes; A head, one end surface of which is fixed to the rod, and the head has two through holes arranged vertically between two side surfaces located on both sides of the rod; One end of the open circular ring is inserted into an upper through hole on one side of the head, and the other end is inserted into a lower through hole on the other side of the head. The circular ring can be rotated on the head after being deformed by external force.

6. The hood safety support device according to claim 3, characterized in that: A radial through hole is provided on the outer peripheral surface of the bottom of the support rod. When the support rod is not in use, the safety pin is inserted into the radial through hole to store the safety pin on the support rod.

7. A hood safety support device according to claim 6, characterized in that: The support rod is provided with a circle of protrusions on the outer wall at a preset distance from the top surface thereof. When the support rod is not in use, the support rod is placed into the support leg of the cab flipping system, and the support rod is supported and limited by the contact between the circle of protrusions and the top surface of the support leg, thereby storing the support rod in the support leg.

8. A hood safety support device according to claim 7, characterized in that: A reinforcing plate is provided in the support leg, and after the support rod penetrates from the top surface of the support leg, the lower part of the support rod continues to penetrate downward into the reinforcing plate; The radial through hole on the support rod is located below the reinforcing plate, and the safety pin received on the support rod serves to limit the upward movement of the support rod.

9. The hood safety support device according to claim 1, characterized in that: The base comprises: A fixed base connected to the frame; The lower base is a bent plate fixed on the outer side of the fixed base facing the support rod. The lower base is provided with a through hole through which the support rod can pass and abut against the outer side of the fixed base, thereby limiting the movement tendency of the support rod.

10. A mining dump truck, comprising a frame and a hood, wherein the hood is hinged to the frame, characterized in that: A hood safety support device according to any one of claims 1 to 9 is installed between the vehicle frame and the hood.

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