Modular weight-adjustable counterweight device for an engineering vehicle

Abstract

This utility model discloses an adjustable weight modular engineering vehicle counterweight device, relating to the field of engineering vehicle counterweight technology. It includes an engineering vehicle body, with a mounting plate fixedly connected to one side of the body. An electric telescopic rod is fixedly connected to the upper surface of the mounting plate, and the telescopic end of the electric telescopic rod passes through the mounting plate and is slidably connected to it. The engineering vehicle counterweight device of this application utilizes the engineering vehicle body, mounting plate, electric telescopic rod, limiting plate, buckle, first counterweight block, first groove, and first fixing screw in cooperation. The electric telescopic rod drives the limiting plate to rise and fall, automatically unlocking and locking the buckle connection with the first counterweight block. Combined with the snap-fit ​​design between the first fixing screw and the third groove of the mounting plate, the first counterweight block can be quickly disassembled or installed, achieving flexible increases or decreases in counterweight weight. Operators can adjust the counterweight according to the needs of the work site without the need for large tools, thus enabling adjustment of the counterweight block's weight based on the usage environment.

Description

Technical Field

[0001] This utility model relates to the field of engineering vehicle counterweight technology, specifically to a modular engineering vehicle counterweight device with adjustable weight. Background Technology

[0002] In the operation of engineering vehicles such as hoisting, excavation and dynamic compaction, it is often necessary to install a counterweight assembly on the vehicle to ensure the overall stability of the vehicle during operation.

[0003] A search revealed a Chinese patent with publication number CN204849887U, which discloses a counterweight device for an engineering vehicle, belonging to the field of engineering machinery technology. The device includes an engineering vehicle platform and a counterweight, which is embedded and fixed in the rear housing of the platform. This invention features a simple structure, reduced costs, a smaller turning radius, a lower center of gravity, good heat dissipation, ease of operation and maintenance, and improved aesthetics.

[0004] While the above solutions can reduce costs, decrease the turning radius of the entire machine, lower the center of gravity, improve heat dissipation, facilitate operation and maintenance, and enhance the aesthetics of the overall appearance, the counterweight device in the aforementioned patent is difficult to adjust the weight of the counterweight according to the site conditions. If it cannot be adjusted according to the site, it may lead to equipment instability or even tipping over, causing safety accidents. Therefore, we provide an adjustable weight modular engineering vehicle counterweight device to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a modular counterweight device for engineering vehicles with adjustable weight, in order to solve the problems raised in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a modular engineering vehicle counterweight device with adjustable weight, including an engineering vehicle body, an installation plate fixedly connected to one side of the engineering vehicle body, an electric telescopic rod fixedly connected to the upper surface of the installation plate, the telescopic end of the electric telescopic rod passing through the installation plate and slidably connected to the installation plate, and a limit plate fixedly connected to the telescopic end of the electric telescopic rod.

[0007] The limiting plate is snapped with a buckle, and a first counterweight is fixedly connected to the lower end of the buckle. A first groove is provided on one side of the first counterweight.

[0008] Preferably, a second groove is provided on one side of the mounting plate, and a third slot is provided inside the second groove. The third slot on the mounting plate can facilitate the fixing of the counterweight.

[0009] Preferably, a first fixing screw is hinged inside the first groove, and the first fixing screw is engaged with the inside of the third slot. The first fixing screw can fix the first counterweight block to prevent the counterweight block from shaking when the engineering vehicle is working.

[0010] Preferably, a guide rod is fixedly connected to the upper surface of the first counterweight, and a first slot is provided on one side of the first counterweight. When the first counterweight is fixed on the engineering vehicle, the guide rod can guide the counterweight to prevent it from shaking.

[0011] Preferably, the inner wall of the mounting plate is provided with a guide groove, and the inside of the guide groove is inserted into the guide rod. The guide groove provided on the mounting plate can guide the guide rod and play a guiding role.

[0012] Preferably, a second fixing screw is engaged inside the first slot, and a second counterweight is hinged to the second fixing screw. The second counterweight can be fixed to the first counterweight by the second fixing screw, and the weight of the counterweight can be adjusted according to the site.

[0013] Preferably, a second slot is provided on one side of the second counterweight, and a third groove is provided on one side of the second counterweight. The second slot on the second counterweight can connect more counterweights, making it convenient to add more counterweights.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The engineering vehicle counterweight device of this application uses the engineering vehicle body, mounting plate, electric telescopic rod, limiting plate, buckle, first counterweight block, first groove and first fixing screw in cooperation. The limiting plate is driven to rise and fall by the electric telescopic rod, which can automatically unlock and lock the connection between the buckle and the first counterweight block. Combined with the snap-fit ​​design of the first fixing screw and the third groove of the mounting plate, the first counterweight block can be quickly disassembled or installed, realizing the flexible increase or decrease of the counterweight. The operator can adjust the counterweight according to the needs of the work site without the need for large tools, so as to adjust the weight of the counterweight block according to the use site.

[0016] 2. The engineering vehicle counterweight device of this application uses a guide rod, a third slot, a second groove, a guide groove, and a third groove in combination. The guide rod of the first counterweight block is inserted into the guide groove of the mounting plate to form a precise guiding system in the vertical direction. When installing or removing the counterweight block, the guide rod slides along the guide groove to automatically correct the position of the counterweight block and avoid manual adjustment errors. The third groove of the second counterweight block is adapted to the guide rod and slot of the next counterweight block to realize rapid stacking and positioning between modules, ensure the alignment accuracy of multiple counterweight blocks, and improve installation efficiency. Attached Figure Description

[0017] Figure 1This is a frontal three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the overall three-dimensional structure of the present invention from the rear view.

[0019] Figure 3 This is a three-dimensional structural diagram of the counterweight device of this utility model;

[0020] Figure 4 This is a three-dimensional exploded view of the counterweight device of this utility model.

[0021] Figure 5 This is a three-dimensional structural diagram of the engineering vehicle body of this utility model.

[0022] The following are the labels in the diagram: 1. Engineering vehicle body; 2. Mounting plate; 3. Electric telescopic rod; 4. Limiting plate; 5. Buckle; 6. First counterweight; 7. First groove; 8. First fixing screw; 9. First slot; 10. Second fixing screw; 11. Second counterweight; 12. Second slot; 13. Guide rod; 14. Third slot; 15. Second groove; 16. Guide groove; 17. Third groove. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figure 5 As shown, this utility model provides a technical solution for an adjustable weight modular engineering vehicle counterweight device, including an engineering vehicle body 1. An installation plate 2 is fixedly connected to one side of the engineering vehicle body 1. A guide groove 16 is provided on the inner wall of the installation plate 2. The guide rod 13 is inserted into the guide groove 16. The guide groove 16 on the inner wall of the installation plate 2 can guide the first counterweight 6. When the first counterweight 6 rises, the guide rod 13 can be inserted into the guide groove 16 to play a guiding role. A second groove 15 is provided on one side of the installation plate 2. A third slot 14 is provided inside the second groove 15. The second groove 15 on one side of the installation plate 2 can facilitate the rotation of the first fixing screw 8 inside it. The third slot 14 on one side of the installation plate 2 can fix the hoisted counterweight to prevent the counterweight from falling off when the engineering vehicle is working.

[0025] like Figure 3As shown, an electric telescopic rod 3 is fixedly connected to the upper surface of the mounting plate 2. The telescopic end of the electric telescopic rod 3 passes through the mounting plate 2 and is slidably connected to the mounting plate 2. A limit plate 4 is fixedly connected to the telescopic end of the electric telescopic rod 3. When the construction vehicle is carrying out construction, it is necessary to add counterweights to the construction vehicle to prevent the construction vehicle from tilting during construction. The added counterweight blocks can be hoisted through the electric telescopic rod 3. More counterweight blocks can be added through the first slot 9 set on one side of the first counterweight block 6, which makes it convenient to adjust the amount of counterweight blocks according to the needs of the site.

[0026] like Figure 1 As shown, the limiting plate 4 is snapped with a buckle 5, and the lower end of the buckle 5 is fixedly connected to a first counterweight 6. The upper surface of the first counterweight 6 is fixedly connected to a guide rod 13. A first slot 9 is opened on one side of the first counterweight 6. The guide rod 13 is installed on the first counterweight 6. When the first counterweight 6 is hoisted, the guide rod 13 can be inserted into the guide slot 16 to guide the first counterweight 6 and prevent the first counterweight 6 from being misaligned during hoisting.

[0027] like Figure 2 As shown, a second fixing screw 10 is engaged inside the first slot 9, and a second counterweight 11 is hinged to the second fixing screw 10. When the weight of the counterweight is increased, it can be fixed in the first slot 9 by the second fixing screw 10, which facilitates the fixing of the added second counterweight 11 and plays a fixing role. A second slot 12 is provided on one side of the second counterweight 11, and a third groove 17 is provided on one side of the second counterweight 11. The second slot 12 on one side of the second counterweight 11 can facilitate the addition of counterweights according to the site. The third groove 17 on one side of the second counterweight 11 can facilitate the rotation of the second fixing screw 10 inside it, which facilitates the fixing of the second counterweight 11.

[0028] like Figure 4 As shown, a first groove 7 is provided on one side of the first counterweight 6. A first fixing screw 8 is hinged inside the first groove 7. The first fixing screw 8 is engaged with the inside of the third slot 14. The first fixing screw 8 is installed in the first groove 7. The first counterweight 6 can be fixed on the mounting plate 2 by the first fixing screw 8 to prevent the engineering vehicle body 1 from falling off during operation, thus playing a fixing role.

[0029] The engineering vehicle body 1 and the electric telescopic pole 3 in this application are common electrical devices in the prior art, and their models or specific structures will not be described in detail in this application.

[0030] Working principle: When the counterweight needs to be adjusted, the electric telescopic rod 3 is activated to drive the limiting plate 4 to move upward. The limiting plate 4 disengages from the buckle 5, releasing the lock on the first counterweight block 6. At this time, the first fixing screw 8 exits from the third slot 14 of the mounting plate 2, completing the unlocking of the counterweight block. The operator can directly move the first counterweight block 6 vertically downward along the guide groove 16. After the guide rod 13 disengages from the guide groove 16, it can be removed. If it is necessary to remove the stacked second counterweight block 11, the second fixing screw 10 is rotated to disengage from the first slot 9 to separate them step by step. Align the guide rod 13 with the guide groove 16 of the mounting plate 2 and push the first counterweight block 6 upward until the buckle 5 is embedded in the limiting plate 4. At this time, the first fixing screw 8 in the first groove 7 automatically engages in the third slot 14, completing the fixation. The second counterweight block 11 is then removed through the second slot 14. The design of the second counterweight 11 and the third groove 17 allows for the stacking of more counterweight units on top of the first counterweight 6. The third groove 17 of the second counterweight 11 is aligned with the guide rod 13 of the lower counterweight and inserted. The second fixing screw 10 is rotated to engage with the first slot 9 of the lower layer, achieving a quick connection. Repeating this process can form a multi-layer stacked structure. Each layer is kept vertically aligned by the guide rod 13 and the guide slot 16. When the electric telescopic rod 3 drives the limiting plate 4 to move down and press the buckle 5, a double locking mechanism is formed. The wedge structure of the buckle 5 and the limiting plate 4 produces a self-locking effect. The interference fit between the first fixing screw 8 and the third slot 14 prevents horizontal displacement. The precise fit between the guide rod 13 and the guide slot 16 eliminates the swaying of the counterweight, ensuring the stability of the counterweight system during the operation of the engineering vehicle and allowing the weight of the counterweight to be adjusted according to the site of use.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A modular weight-adjustable counterweight device for an engineering vehicle, comprising an engineering vehicle body (1), characterized in that: A mounting plate (2) is fixedly connected to one side of the engineering vehicle body (1). An electric telescopic rod (3) is fixedly connected to the upper surface of the mounting plate (2). The telescopic end of the electric telescopic rod (3) passes through the mounting plate (2) and is slidably connected to the mounting plate (2). A limit plate (4) is fixedly connected to the telescopic end of the electric telescopic rod (3). The limiting plate (4) is snapped with a buckle (5), and the lower end of the buckle (5) is fixedly connected to a first counterweight (6). A first groove (7) is provided on one side of the first counterweight (6).

2. The adjustable weight modular engineering vehicle counterweight device according to claim 1, characterized in that: The mounting plate (2) has a second groove (15) on one side, and a third slot (14) is provided inside the second groove (15).

3. The adjustable weight modular engineering vehicle counterweight device according to claim 1, characterized in that: The first groove (7) is hinged to the inside of a first fixing screw (8), and the first fixing screw (8) is engaged with the inside of a third slot (14).

4. The adjustable weight modular engineering vehicle counterweight device according to claim 1, characterized in that: A guide rod (13) is fixedly connected to the upper surface of the first counterweight (6), and a first slot (9) is provided on one side of the first counterweight (6).

5. The adjustable weight modular engineering vehicle counterweight device according to claim 2, characterized in that: The inner wall of the mounting plate (2) is provided with a guide groove (16), and the inside of the guide groove (16) is inserted into the guide rod (13).

6. The adjustable weight modular engineering vehicle counterweight device according to claim 4, characterized in that: The first slot (9) is fitted with a second fixing screw (10), and the second fixing screw (10) is hinged to a second counterweight (11).

7. The adjustable weight modular engineering vehicle counterweight device according to claim 6, characterized in that: A second slot (12) is provided on one side of the second counterweight (11), and a third groove (17) is provided on one side of the second counterweight (11).

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