Dumper hopper door opening and closing state display device

Abstract

The utility model belongs to the technical field of vehicle transportation, and particularly discloses a dump truck hopper door opening and closing state display device which is characterized by comprising a power source, a display unit, a starting touch piece arranged on a hopper door and a control mechanism arranged on a hopper bottom plate. The display unit, the control mechanism and the power supply are connected in series to form a complete circuit; the control mechanism is connected with an induction touch piece, when the car hopper door is closed, the starting touch piece makes contact with the induction touch piece, and the control mechanism enables a circuit to be disconnected. When the car hopper door is opened, the starting touch piece is separated from the sensing touch piece, and the control mechanism enables a circuit to be connected. According to the utility model, a driver can intuitively obtain the opening and closing state of the hopper door.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle transportation, in particular to a switch state display device for a dump truck bucket door. Background Art

[0002] Water conservancy project construction is inseparable from the use of dump trucks to transport materials. During vehicle transportation, the open or closed state of the bucket door is crucial to the safety of the goods and driving safety. However, many vehicles currently lack a device that can intuitively display the status of the bucket door in the cab, making it difficult for the driver to accurately understand the status of the bucket door in real time, increasing the risk of cargo falling and traffic safety, while reducing transportation efficiency.

[0003] The bucket doors of some dump trucks are opened and closed when the bucket is lifted and closed when the bucket is lowered. The materials transported during construction projects are prone to causing pollution to the bucket, and the bucket doors often cannot be completely closed, causing the loaded materials to leak.

[0004] In the field of vehicle transportation, it is very important to accurately grasp the opening and closing status of the bucket door. The existing bucket door status monitoring methods mostly use manual inspection, which has many shortcomings. In order to avoid material leakage, the driver needs to get off the vehicle to check the bucket closing status before loading or arrange for someone to check the bucket closing status, which reduces construction efficiency and increases construction costs. Utility Model Content

[0005] The utility model provides a dump truck bucket door switch state display device, which aims to enable the driver to intuitively obtain the open and closed state of the bucket door.

[0006] The utility model is realized by the following technical scheme: a dump truck bucket door switch state display device, comprising a power supply, a display unit, a starter bumper arranged on the bucket door and an operating mechanism arranged on the bucket bottom plate, wherein the display unit, the operating mechanism and the power supply are connected in series to form a complete circuit;

[0007] The operating mechanism is connected with a sensing touch piece. When the bucket door is closed, the starting touch piece contacts the sensing touch piece, and the operating mechanism disconnects the circuit. When the bucket door is opened, the starting touch piece is separated from the sensing touch piece, and the operating mechanism connects the circuit.

[0008] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0009] In this solution, the operating mechanism disconnects or connects the circuit through the interaction between the sensing contact piece and the starting contact piece. When the circuit is disconnected, the display unit has no display because the power is not connected, and the bucket door is in the closed state at this time; when the circuit is connected, the display power supply is connected to the power supply and displays, and the bucket door is in the open state at this time. In this way, the driver can know the open and closed state of the bucket door more intuitively according to the display state of the display unit.

[0010] During the actual installation process, the display unit of this solution can be installed in the cab, so that the driver can observe the status of the display unit. In this way, the driver does not need to get off the vehicle to check the closing status of the bucket or arrange for a special person to check the closing status of the bucket before loading each time, thus avoiding the impact of reduced construction efficiency and increased construction costs.

[0011] Further, the operating mechanism includes a housing, a switch, a spring and a driving rod, the switch is connected in series with the display unit and the power supply in the same circuit, the switch includes a fixed plate and a movable plate, the fixed plate is connected with a fixed contact, the movable plate is connected with a movable contact, the driving rod is coaxially slidably matched with the housing, and one end of the driving rod is located outside the housing and connected to the sensing touch piece; the other end of the driving rod is connected to the movable plate, one end of the spring is connected to or abuts against the housing, and the other end of the spring is connected to or abuts against the driving rod or the movable plate or the sensing touch piece;

[0012] When the bucket door is opened, the starting contact piece is separated from the sensing contact piece, and the movable contact is in contact with the fixed contact; when the bucket door is closed, the starting contact piece is in contact with the sensing contact piece and squeezes the sensing contact piece to move the driving rod and drive the movable contact to separate from the fixed contact.

[0013] In this solution, the two ends of the driving rod are respectively connected to the movable plate and the sensing contact piece. When the bucket door is closed, the starting contact piece on the bucket door contacts and compresses the sensing contact piece, which drives the driving rod to move linearly, so that the driving rod drives the movable contact on the movable plate to leave the fixed contact, thereby disconnecting the circuit. At this time, the display unit does not display, indicating that the bucket door is in a closed state; when the bucket door is opened, the starting contact piece leaves the sensing contact piece. At this time, since the driving rod does not receive the compression thrust, it will be reset under the action of the spring, thereby driving the movable contact on the movable plate to contact the fixed contact again, so that the circuit is connected. At this time, the display unit will display an opening signal, indicating that the bucket door is in an open state.

[0014] The control mechanism in this scheme is simple, which is conducive to changing the linear motion direction of the driving rod according to the state of the truck bucket door opening, thereby driving the switch to open or close to realize the on-off of the circuit, and then controlling the display state of the display unit. The structure is simple, economical and practical. The device is easy to obtain materials, simple to make, low in cost, and has obvious benefits in construction.

[0015] Furthermore, two ends of the spring are respectively connected to the movable plate and the inner wall of the shell.

[0016] Furthermore, the spring is located outside the shell, and the spring is sleeved on the driving rod, and two ends of the spring are respectively against the induction contact piece and the end of the shell.

[0017] Furthermore, a slide plate is connected to the driving rod, the slide plate is located inside the shell, the slide plate is slidably matched with the inner wall of the shell along the axial direction of the shell, and the two ends of the spring are respectively connected to the inner wall of the shell and the slide plate.

[0018] This solution can make the linear motion of the driving rod more stable and provide better guidance for the motion of the driving rod, thereby improving the control accuracy of the entire operating mechanism.

[0019] Furthermore, a guide groove is provided on the inner side wall of the shell along its axial direction, and a sliding block is connected to one end of the sliding plate away from the driving rod. The sliding block is located in the guide groove and slidably cooperates with the guide groove.

[0020] The arrangement of the guide groove and the sliding block in this solution can guide the linear motion of the driving rod, making the linear motion of the driving rod smoother.

[0021] Furthermore, the starting bumper is connected to one end of the truck bucket door facing away from the truck bucket bottom plate.

[0022] In this solution, the starting striker is located at the end of the truck bucket door facing away from the truck bucket bottom plate, which makes it easier to install the starting striker. Compared with the setting at the end of the truck bucket door facing the truck bucket bottom plate, this solution can avoid the problem of the truck bucket door not being tightly closed, that is, this setting of the solution can avoid the starting striker from hindering the closing of the truck bucket door.

[0023] Furthermore, when the movable contact is in contact with the fixed contact, the distance between the sensing contact piece and the end of the truck bed bottom plate is greater than the thickness of the truck bed door.

[0024] Such an arrangement can ensure that the starting contact piece can effectively push the compression sensing contact piece, thereby causing the driving rod to be compressed.

[0025] Furthermore, the display unit is an indicator light.

[0026] The indicator light is easy to install and has low cost. When the indicator light is connected to the power supply, the light is on, indicating that the bucket door is open. When the indicator light is disconnected from the power supply, the light is off, indicating that the bucket door is closed. In this way, the driver can more clearly and intuitively judge the open and closed state of the bucket door according to the state of the indicator light.

[0027] Furthermore, the sensing contact plate is detachably connected to the driving rod, and the starting contact plate is detachably connected to the vehicle bucket door.

[0028] This solution facilitates timely replacement of the sensing impact plate and the starting impact plate when they are worn, and is flexible to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The drawings described herein are used to provide a further understanding of the embodiments of the present utility model, constitute a part of this application, and do not constitute a limitation of the embodiments of the present utility model. In the drawings:

[0030] Figure 1 This is a structural schematic diagram of a first embodiment of a dump truck bucket door switch status display device of the utility model;

[0031] Figure 2 This is a circuit diagram of Embodiment 1 of a dump truck bucket door switch status display device of the utility model;

[0032] Figure 3 Schematic diagram I of the state of connection between the operating mechanism and the induction contact piece in Embodiment 1 of the dump truck bucket door switch state display device of the utility model;

[0033] Figure 4 Schematic diagram II of the state of connection between the operating mechanism and the induction contact piece in Embodiment 1 of the dump truck bucket door switch state display device of the utility model;

[0034] Figure 5 This is a schematic diagram of the state of the operating mechanism and the induction contact piece being connected in Embodiment 2 of a dump truck bucket door switch state display device of the utility model;

[0035] Figure 6 It is a schematic diagram of the state of the operating mechanism connected to the induction contact piece in Example 3 of a dump truck bucket door switch status display device of the utility model.

[0036] Marks and corresponding parts names in the attached drawings:

[0037] Indicator light 1, cable 2, operating mechanism 3, housing 31, switch 32, fixed plate 321, fixed contact 322, movable plate 323, movable contact 324, spring 33, drive rod 4, induction touch piece 5, starting touch piece 6, truck door 7, truck bottom plate 8, power supply 9, slide plate 10, slider 11, guide groove 12. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with embodiments and drawings. The schematic implementation manner of the utility model and its description are only used to explain the utility model and are not intended to limit the utility model.

[0039] Example 1

[0040] like Figure 1 As shown, this embodiment 1 provides a dump truck bucket door switch state display device, including a power supply 9, a display unit, a starter bumper 6 arranged on the bucket door 7 and an operating mechanism arranged on the bucket bottom plate 8. The display unit, the operating mechanism 3 and the power supply 9 are connected in series to form a complete circuit, as shown in FIG. Figure 1 As shown, the display unit is connected to the power supply 9 and the operating mechanism 3 respectively through the cable 2, and the operating mechanism 3 is connected to the power supply 9 through the cable 2. In this embodiment, the display unit is an indicator light 1, and the indicator light 1 is installed in the cab for easy observation. The power supply 9 in this embodiment can be provided with a separate battery or directly use the power supply of the vehicle body. In this embodiment, the indicator light 1 is connected to the power supply of the vehicle body through the cable 2.

[0041] The operating mechanism 3 is connected with a sensing touch piece 5. When the bucket door 7 is closed, the starting touch piece 6 contacts the sensing touch piece 5, and the operating mechanism 3 disconnects the circuit. When the bucket door 7 is opened, the starting touch piece 6 separates from the sensing touch piece 5, and the operating mechanism 3 connects the circuit. The operating mechanism 33 transmits the contact status of the sensing touch piece 5 and the starting touch piece 6 to the display unit through the control cable 2, so as to realize real-time display.

[0042] like Figure 1 As shown, in this embodiment, the starting bumper 6 is connected to the end of the bucket door 7 away from the bucket bottom plate 8, and the starting bumper 6 is detachably connected to the bucket door 7. In this embodiment, the starting bumper 6 and the bucket door 7 are detachably fixed by bolts, which makes it easy to replace the starting bumper 6 when it is worn or damaged.

[0043] like Figure 3 As shown, in this embodiment, the operating mechanism 3 includes a housing 31, a switch 32, a spring 33 and a driving rod 4. Figure 2 As shown, in this embodiment, the switch 32 is connected in series with the display unit and the power supply 9 in the same circuit.

[0044] Recombination Figure 3 As shown, the switch 32 includes a fixed plate 321 and a movable plate 323, the fixed plate 321 and the movable plate 323 are respectively connected to the power supply 9 and the indicator light 1 through the cable 2, the fixed plate 321 is connected to the fixed contact 322, and the movable plate 323 is connected to the movable contact 324, the fixed plate 321 is vertically fixed to the inner wall of the shell 31, and the drive rod 4 slides with the shell 31 along the axial direction of the shell 31. Specifically, in this embodiment, the shell 31 is hollow inside, and a through hole is opened at one end of the shell 31, and one end of the drive rod 4 passes through the through hole and can slide axially in the through hole.

[0045] One end of the driving rod 4 is located outside the shell 31 and is connected to the sensing touch piece 5. The driving rod 4 is fixedly connected or detachably connected to the sensing touch piece 5. In this embodiment, the driving rod 4 and the sensing touch piece 5 are detachably connected. Specifically: the driving rod 4 is threadedly connected to the sensing touch piece 5; the other end of the driving rod 4 is vertically connected to the movable plate 323.

[0046] One end of the spring 33 is connected to or abuts against the shell 31, and the other end of the spring 33 is connected to or abuts against the drive rod 4 or the movable plate 323 or the induction contact plate 5. Specifically: in this embodiment, the two ends of the spring 33 are respectively connected to the movable plate 323 and the inner wall of the shell 31.

[0047] like Figure 4 As shown, when the bucket door 7 is opened, the starting touch piece 6 is separated from the sensing touch piece 5. At this time, the driving rod 4 moves toward the outside of the shell 31 under the action of the spring 33, so that the movable contact 324 contacts the fixed contact 322. At this time, the circuit is connected and the indicator light 1 is on; when the bucket door 7 is closed, the starting touch piece 6 will contact and squeeze the sensing touch piece 5, so that the driving rod 4 moves linearly toward the inside of the shell 31 and drives the movable contact 324 to separate from the fixed contact 322. At this time, the circuit is disconnected and the indicator light 1 is off.

[0048] In this embodiment, when the movable contact 324 contacts the fixed contact 322, the distance between the sensing contact piece 5 and the end of the bucket bottom plate 8 is greater than the thickness of the bucket door 7. This ensures that when the bucket door 7 is closed, the starting contact piece 6 pushes and squeezes the sensing contact piece 5, thereby driving the driving rod 4 to move in a straight line.

[0049] In this embodiment, when the sensing contact piece 5 contacts the starting contact piece 6, the driving rod 4 is moved to compress the spring 33, the circuit is disconnected, and the indicator light 1 is turned off; when the starting contact piece 6 is separated from the sensing contact piece 5, the circuit is connected, and the indicator light 1 is turned on. The indicator light 1 is installed in the cab, and the indicator light 1 is connected to the vehicle body power supply 9. According to the turning off of the indicator light 1, the driver is intuitively shown the opening and closing state of the bucket door 7.

[0050] The unique design of the entire device of the utility model includes installing a shell 31, a switch 32, a driving rod 4 and a sensing touch piece 5 on the lower surface of the truck bucket bottom plate 8, installing a starting touch piece 6 on the outside of the truck bucket door 7, installing an indicator light 1 in the cab, and connecting them through a control cable 2, a contact or separation mechanism of the sensing touch piece 5 and the starting touch piece 6, so as to accurately detect the opening and closing state of the truck bucket door 7.

[0051] The utility model has the following advantages:

[0052] 1) Simplicity: The device structure is relatively simple and easy to install and maintain.

[0053] 2) Real-time performance: The opening and closing status of the bucket door 7 can be fed back to the driver in real time, so that the driver can know it in time.

[0054] 3) Intuitiveness: The indicator light 1 turns on or off to clearly and intuitively display the status of the bucket door 7, reducing the difficulty and error of the driver's judgment.

[0055] 4) Improved safety: It helps to avoid cargo falling and traffic accidents, and ensures the safety of the transportation process.

[0056] 5) Efficiency improvement: The time and labor cost of manually checking the status of the bucket door 7 are reduced, and the construction and transportation efficiency are improved.

[0057] 6) Accuracy: Compared with the traditional manual inspection method, the present device can detect the status of the bucket door 7 more accurately.

[0058] The invention is applicable to various automatic opening and closing bucket door dump trucks, and is economical and practical. Moreover, the practical device is easy to obtain materials, simple to make, low in cost, and has obvious benefits in construction.

[0059] The alternatives in this embodiment, for example, use more advanced sensor technology, such as laser sensors or infrared sensors to detect the opening and closing status of the bucket door; or use wireless transmission to replace the control cable 2 to transmit signals, etc. However, these alternatives may have certain limitations in terms of cost, stability or installation difficulty, so the device of the utility model is lower in cost, more stable, simpler to install, and more practical.

[0060] Example 2

[0061] like Figure 5 As shown, the difference between this embodiment and embodiment 1 is that in this embodiment, the spring 33 is located outside the housing 31, and the spring 33 is sleeved on the driving rod 4, and the two ends of the spring 33 are respectively against the sensing contact piece 5 and the end of the housing 31.

[0062] Example 3

[0063] like Figure 6 As shown, the difference between this embodiment and embodiment 1 is that: in this embodiment, a slide plate 10 is connected to the driving rod 4, the slide plate 10 is located inside the shell 31 and is vertically connected to the driving rod 4, in this embodiment, the slide plate 10 and the driving rod 4 are formed as one piece, and the slide plate 10 and the inner side wall of the shell 31 are slidably matched along the axial direction of the shell 31. Specifically: in this embodiment, a guide groove 12 is opened on the inner side wall of the shell 31 along its axial direction, and a slider 11 is fixedly connected to the end of the slide plate 10 away from the driving rod 4, and the slider 11 is located in the guide groove 12 and is slidably matched with the guide groove 12.

[0064] The two ends of the spring 33 are respectively connected to the inner wall of the housing 31 and the slide plate 10. This embodiment provides another way of installing the spring 33, which can improve the stability and accuracy of the linear motion of the driving rod 4.

[0065] It should be noted that the above description of the disclosed embodiments enables professionals and technicians in the field to implement or use the present application. Various modifications to these embodiments will be apparent to professionals and technicians in the field, and the general principles defined herein can be implemented in other embodiments without departing from the scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but should conform to the widest scope consistent with the principles and novel features disclosed herein.

[0066] In the description of the present invention, it should be noted that the terms "first", "second", "third", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0067] In the description of this document, terms such as "up", "down", "left", "right", "front", "back", "top", "bottom", "inside", "outside", "middle", "vertical", "horizontal", "lateral", and "longitudinal" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only used to illustrate the relative positional relationships between the various components or components, and do not particularly limit the specific installation orientations of the various components or components.

[0068] In the description of this document, some terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to the specific circumstances.

[0069] In the description of this document, the terms "installed", "set", "provided with", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0070] The structures, proportions, sizes, etc. drawn in the drawings in this application are only used to match the contents disclosed in this technical briefing book for technical personnel in this field to understand and read, and are not used to limit the restrictive conditions for the implementation of this application. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the effects and purposes that can be achieved by this application.

[0071] The terms used in this document are those common terms currently widely used in the art in consideration of the functions of the present disclosure, but these terms may vary according to the intention of a person of ordinary skill in the art, precedents, or new technologies in the art. In addition, specific terms may be selected by the applicant, and in this case, their detailed meanings will be described in the detailed description of the present disclosure. Therefore, the terms used in the document should not be understood as simple names, but rather as an overall description based on the meaning of the terms and the present disclosure.

[0072] Flowcharts or text are used in this document to illustrate the operating steps performed according to the embodiments of the present application. It should be understood that the operating steps in the embodiments of the present application are not necessarily accurately performed in the order of recording. On the contrary, various steps can be processed in reverse order or simultaneously as needed. At the same time, other operations can also be added to these processes, or a certain step or several steps can be removed from these processes.

[0073] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A dump truck bucket door switch status display device, characterized in that: It includes a power supply, a display unit, a starter bumper arranged on the truck bucket door and an operating mechanism arranged on the truck bucket bottom plate, wherein the display unit, the operating mechanism and the power supply are connected in series to form a complete circuit; The operating mechanism is connected with a sensing touch piece. When the bucket door is closed, the starting touch piece contacts the sensing touch piece, and the operating mechanism disconnects the circuit. When the bucket door is opened, the starting touch piece is separated from the sensing touch piece, and the operating mechanism connects the circuit.

2. A dump truck bucket door switch status display device according to claim 1, characterized in that: The operating mechanism includes a housing, a switch, a spring and a driving rod. The switch is connected in series with the display unit and the power supply in the same circuit. The switch includes a fixed plate and a movable plate. The fixed plate is connected with a fixed contact. The fixed plate is fixed to the inner wall of the housing. A movable contact is connected to the movable plate, the driving rod is slidably matched with the shell along the axial direction of the shell, and one end of the driving rod is located outside the shell and connected to the sensing contact piece; the other end of the driving rod is connected to the movable plate, one end of the spring is connected to or abuts against the shell, and the other end of the spring is connected to or abuts against the driving rod, the movable plate or the sensing contact piece; When the bucket door is opened, the starting contact piece is separated from the sensing contact piece, and the movable contact is in contact with the fixed contact; when the bucket door is closed, the starting contact piece is in contact with the sensing contact piece and squeezes the sensing contact piece to move the driving rod and drive the movable contact to separate from the fixed contact.

3. A dump truck bucket door switch status display device according to claim 2, characterized in that: Two ends of the spring are respectively connected to the movable plate and the inner wall of the shell.

4. A dump truck bucket door switch status display device according to claim 2, characterized in that: The spring is located outside the shell and is sleeved on the driving rod. Two ends of the spring are respectively against the induction contact piece and the end of the shell.

5. A dump truck bucket door switch status display device according to claim 2, characterized in that: The driving rod is connected with a slide plate, which is located inside the shell. The slide plate is slidably matched with the inner wall of the shell along the axial direction of the shell, and the two ends of the spring are respectively connected with the inner wall of the shell and the slide plate.

6. A dump truck bucket door switch status display device according to claim 5, characterized in that: A guide groove is provided on the inner side wall of the shell along its axial direction, and a slider is connected to one end of the slide plate away from the driving rod. The slider is located in the guide groove and slidably cooperates with the guide groove.

7. A dump truck bucket door switch status display device according to claim 2, characterized in that: The starting bumper is connected to one end of the bucket door away from the bucket bottom plate.

8. A dump truck bucket door switch status display device according to claim 7, characterized in that: When the movable contact is in contact with the fixed contact, the distance between the induction contact piece and the end of the bucket bottom plate is greater than the thickness of the bucket door.

9. A dump truck bucket door switch status display device according to any one of claims 1 to 8, characterized in that: The display unit is an indicator light.

10. A dump truck bucket door switch status display device according to claim 2, characterized in that: The sensing contact piece is detachably connected to the driving rod, and the starting contact piece is detachably connected to the vehicle bucket door.

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