Explosion-proof hydraulic crane

Abstract

The utility model discloses an anti -explosion hydraulic crane, including bottom plate and jack, the upper surface side of bottom plate swing installation has support rod, and the upper end portion fixedly connected with main rod of support rod, and the lower end portion fixedly arranged with the positioning board of main rod, the outer wall movable mounting of main rod has jack, and the upper end portion swing setting of jack output shaft has outer boom, the inner wall movable mounting of outer boom has inner boom, and the end portion lower surface of inner boom is provided with the hook, and the end portion upper surface of inner boom is fixedly connected with transmission rod, the upper surface fixed setting of outer boom has the support, and the upper end inner wall of support installs the limiting mechanism, and the inner wall rotation of support below the limiting mechanism installs the adjusting sleeve. This anti -explosion hydraulic crane is convenient for the length of boom adjustment according to the demand to the convenience device adaptation different operation demand, makes the practicality of device promotion.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic crane technology, specifically to an explosion-proof hydraulic crane. Background Technology

[0002] An explosion-proof hydraulic crane is a lifting device that uses a manual explosion-proof hydraulic jack as its core power source. It converts pressure energy into mechanical energy through manual operation of the jack. In addition, the overall structure of the explosion-proof hydraulic crane is generally made of high-strength alloy materials that are corrosion-resistant and wear-resistant. At the same time, key components have undergone strict explosion-proof certification. Therefore, the explosion-proof hydraulic crane can stably lift objects.

[0003] However, existing explosion-proof hydraulic cranes have the following problems when in use:

[0004] To adapt to the requirements of different operating scenarios, the boom of explosion-proof hydraulic cranes needs to be easy to adjust in length. However, existing explosion-proof hydraulic cranes do not make it convenient to adjust the boom length according to the needs, which makes the device difficult to adapt to different operating requirements and reduces the practicality of explosion-proof hydraulic cranes.

[0005] To address the aforementioned issues, there is an urgent need for innovative designs based on existing explosion-proof hydraulic cranes. Utility Model Content

[0006] The purpose of this utility model is to provide an explosion-proof hydraulic crane to solve the problem mentioned in the background art that existing explosion-proof hydraulic cranes are inconvenient to adjust the boom length according to needs, making it difficult for the device to adapt to different operating requirements, thereby reducing the practicality of the explosion-proof hydraulic crane.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an explosion-proof hydraulic crane, comprising a base plate and a jack, wherein a support rod is movably mounted on the upper surface of the base plate, and a main rod is fixedly connected to the upper end of the support rod, and a positioning plate is fixedly provided at the lower end of the main rod, and a positioning bolt is threadedly connected to the inner wall of the positioning plate, and positioning holes are equally angled on the upper surface of the base plate on the side of the positioning bolt; a jack is movably mounted on the outer wall of the main rod, and an outer boom is movably mounted on the upper end of the jack output shaft; an inner boom is movably mounted on the inner wall of the outer boom, and a hook is provided on the lower surface of the end of the inner boom, and a transmission rod is fixedly connected to the upper surface of the end of the inner boom; a bracket is fixedly provided on the upper surface of the outer boom, and a limit mechanism is installed on the upper inner wall of the bracket, and an adjusting sleeve is rotatably mounted on the inner wall of the bracket below the limit mechanism.

[0008] Preferably, an extension plate is slidably installed on the inner wall of the base plate, and brake casters are installed on the lower surfaces of both the extension plate and the base plate. A locking button is threaded onto the inner wall of the base plate above the extension plate, and the locking button is in contact with the extension plate.

[0009] Preferably, the support rod and the base plate form a rotating structure, and the base plate and the positioning plate are slidably connected, and the positioning bolt and the positioning hole are threaded.

[0010] Preferably, both the jack and the outer boom are rotatably connected to the main rod, and the output shaft of the jack and the outer boom are rotatably configured.

[0011] Preferably, the inner boom and the outer boom are slidably configured, and the adjusting sleeve and the transmission rod are threadedly connected.

[0012] Preferably, the limiting mechanism includes a knob, a clamping block, and an anti-slip pad. The knob is threaded onto the upper inner wall of the bracket, and the clamping block is rotatably mounted on the lower end of the knob. The lower surface of the clamping block is adhered to the anti-slip pad. The clamping block and the bracket are slidably connected, and the anti-slip pad and the adjusting sleeve are fitted together.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the explosion-proof hydraulic crane is easy to adjust the boom length according to the needs, thereby making the device easy to adapt to different operation requirements and improving the practicality of the device;

[0014] By rotating the adjusting sleeve, the transmission rod moves relative to the adjusting sleeve, and then the transmission rod drives the inner boom, causing the inner boom to move relative to the outer boom to adjust the boom length. Therefore, the device can easily adjust the boom length according to the needs, thus making it easy to adapt to different operating requirements and improving the practicality of the device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the orthographic section of the present invention;

[0016] Figure 2 This is a partial top view of the positioning plate of this utility model;

[0017] Figure 3 This is a schematic diagram of the front section structure of the external boom of this utility model;

[0018] Figure 4 This is a partial three-dimensional cross-sectional view of the extension plate of this utility model;

[0019] Figure 5 This is a side view of the limiting mechanism of this utility model.

[0020] In the diagram: 1. Base plate; 2. Extension plate; 3. Brake caster; 4. Support rod; 5. Main rod; 6. Positioning plate; 7. Positioning bolt; 8. Positioning hole; 9. Jack; 10. Outer boom; 11. Inner boom; 12. Hook; 13. Transmission rod; 14. Bracket; 15. Limiting mechanism; 1501. Knob; 1502. Clamping block; 1503. Anti-slip pad; 16. Adjusting sleeve; 17. Locking button. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-5 This utility model provides a technical solution: an explosion-proof hydraulic crane, including a base plate 1, an extension plate 2, brake casters 3, a support rod 4, a main rod 5, a positioning plate 6, a positioning bolt 7, a positioning hole 8, a jack 9, an outer boom 10, an inner boom 11, a hook 12, a transmission rod 13, a bracket 14, a limiting mechanism 15, a knob 1501, a clamping block 1502, an anti-slip pad 1503, an adjusting sleeve 16, and a locking button 17. The support rod 4 is movably installed on the upper surface of the base plate 1, and the upper end of the support rod 4 is fixedly connected to the main rod 5. The lower end of the main rod 5 is fixedly provided with a positioning plate 6, and the inner wall of the positioning plate 6... A positioning bolt 7 is threadedly connected, and positioning holes 8 are equally spaced on the upper surface of the base plate 1 on the side of the positioning bolt 7. A jack 9 is movably installed on the outer wall of the main rod 5, and an outer lifting arm 10 is movably installed on the upper end of the output shaft of the jack 9. An inner lifting arm 11 is movably installed on the inner wall of the outer lifting arm 10, and a hook 12 is provided on the lower surface of the end of the inner lifting arm 11. A transmission rod 13 is fixedly connected to the upper surface of the end of the inner lifting arm 11. A bracket 14 is fixedly installed on the upper surface of the outer lifting arm 10, and a limit mechanism 15 is installed on the upper inner wall of the bracket 14. An adjusting sleeve 16 is rotatably installed on the inner wall of the bracket 14 below the limit mechanism 15.

[0023] An extension plate 2 is slidably installed on the inner wall of the base plate 1, and brake casters 3 are installed on the lower surfaces of both the extension plate 2 and the base plate 1. A locking button 17 is threadedly installed on the inner wall of the base plate 1 above the extension plate 2, and the locking button 17 is in contact with the extension plate 2, which makes it easy for the user to pull the extension plate 2 relative to the base plate 1 to increase the support area of ​​the device, thereby ensuring the stability of the device and making it easy for the device to move via the brake casters 3. Furthermore, the user can rotate the locking button 17 to make the locking button 17 fit tightly against the extension plate 2, thereby ensuring the stability of the extension plate 2.

[0024] The support rod 4 and the base plate 1 form a rotating structure, and the base plate 1 and the positioning plate 6 are slidably connected. The positioning bolt 7 and the positioning hole 8 are threaded, which makes it easy for the user to push the support rod 4 to rotate and adjust the horizontal position of the hoisted object. As the support rod 4 moves, the support rod 4 drives the main rod 5 to move the positioning plate 6 relative to the base plate 1, and makes it easy for the user to rotate the positioning bolt 7 to insert the positioning bolt 7 into the positioning hole 8, thereby limiting the positioning plate 6.

[0025] Both the jack 9 and the outer boom 10 are rotatably connected to the main rod 5. The output shaft of the jack 9 and the outer boom 10 are rotatably set so that when the jack 9 is in use, the jack 9 can push the outer boom 10 to rotate relative to the main rod 5, thereby raising the outer boom 10 to lift objects.

[0026] The inner boom 11 and the outer boom 10 are slidably configured. The adjusting sleeve 16 and the transmission rod 13 are threadedly connected, which allows the user to rotate the adjusting sleeve 16 so that the transmission rod 13 moves relative to the adjusting sleeve 16, thereby driving the inner boom 11 to move relative to the outer boom 10 to adjust the boom length.

[0027] The limiting mechanism 15 includes a knob 1501, a clamping block 1502, and an anti-slip pad 1503. The knob 1501 is threaded onto the upper inner wall of the bracket 14, and the clamping block 1502 is rotatably mounted on the lower end of the knob 1501. The anti-slip pad 1503 is adhered to the lower surface of the clamping block 1502. The clamping block 1502 and the bracket 14 are slidably connected. The anti-slip pad 1503 is fitted to the adjusting sleeve 16. After the boom length is adjusted, the user rotates the knob 1501, causing the knob 1501 to move downward, thereby causing the clamping block 1502 to slide down relative to the bracket 14. This causes the clamping block 1502 to push the anti-slip pad 1503 tightly against the adjusting sleeve 16, thus completing the limiting of the adjusting sleeve 16.

[0028] Working principle: When using this explosion-proof hydraulic crane, firstly as follows... Figure 1-5As shown, the user moves the device via the brake caster 3. When the device reaches the working position, the user pulls the extension plate 2 in the base plate 1, causing the extension plate 2 to move outward. Then, the user rotates the locking button 17, causing the locking button 17 to move relative to the base plate 1 and fit tightly against the extension plate 2, thereby limiting the extension plate 2. At this time, the support area of ​​the device increases, thus ensuring the stability of the device. Then, the user adjusts the length of the boom according to the needs. At this time, the user rotates the adjusting sleeve 16, and then the transmission rod 13 moves relative to the adjusting sleeve 16. Next, the transmission rod 13 drives the inner boom 11 to move relative to the outer boom 10, thereby adjusting the boom length. After the position of the inner boom 11 is adjusted, the user stops rotating the adjusting sleeve 16 and turns the knob 1501. Then, the knob 1501 moves downward relative to the bracket 14. Next, the knob 1501 pushes the clamping block 1502 to move downward relative to the bracket 14. Subsequently, the clamping block 1502 drives the anti-slip pad 1503 to move downward, so that the anti-slip pad 1503 is in close contact with the adjusting sleeve 16, thereby limiting the adjusting sleeve 16 and ensuring the stability of the inner boom 11. Therefore, the device allows for easy adjustment of the boom length according to requirements, thus facilitating its adaptation to different operational needs and enhancing its practicality. The user connects the object to the hook 12, then operates the jack 9. The output shaft of the jack 9 extends, and then rotates relative to the main rod 5. Simultaneously, the output shaft of the jack 9 rotates relative to the outer boom 10, pushing the outer boom 10 to rotate upwards relative to the main rod 5. The outer boom 10 then drives the inner boom 11, causing the hook 12 to move upwards, thereby lifting the object. When adjusting the object's horizontal position, the user rotates the positioning bolt 7 to disengage from the old positioning hole 8. The user then pushes the support rod 4 to rotate, causing the main rod 5 to rotate. The main rod 5 then moves the positioning plate 6 relative to the base plate 1, thus adjusting the object's horizontal position through the rotation of the main rod 5. After the object's horizontal position is adjusted, the user rotates the positioning bolt 7 in the opposite direction to insert it into the new positioning hole 8, thereby limiting the positioning plate 6 and ensuring the stability of the main rod 5.

[0029] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An explosion-proof hydraulic crane, comprising a base plate (1) and jacks (9), characterized in that: A support rod (4) is movably mounted on the upper side of the base plate (1), and a main rod (5) is fixedly connected to the upper end of the support rod (4). A positioning plate (6) is fixedly installed at the lower end of the main rod (5), and a positioning bolt (7) is threadedly connected to the inner wall of the positioning plate (6). At the same time, positioning holes (8) are opened at equal angles on the upper surface of the base plate (1) on the side of the positioning bolt (7). A jack (9) is movably mounted on the outer wall of the main rod (5), and a positioning bolt (8) is movably installed at the upper end of the output shaft of the jack (9). An outer boom (10) is provided with an inner boom (11) movably mounted on the inner wall of the outer boom (10). A hook (12) is provided on the lower surface of the end of the inner boom (11), and a transmission rod (13) is fixedly connected to the upper surface of the end of the inner boom (11). A bracket (14) is fixedly mounted on the upper surface of the outer boom (10), and a limiting mechanism (15) is installed on the upper inner wall of the bracket (14). An adjusting sleeve (16) is rotatably installed on the inner wall of the bracket (14) below the limiting mechanism (15).

2. The explosion-proof hydraulic crane according to claim 1, characterized in that: An extension plate (2) is slidably installed on the inner wall of the base plate (1), and brake casters (3) are installed on the lower surfaces of the extension plate (2) and the base plate (1). A locking button (17) is threaded on the inner wall of the base plate (1) above the extension plate (2), and the locking button (17) is in contact with the extension plate (2).

3. The explosion-proof hydraulic crane according to claim 1, characterized in that: The support rod (4) and the base plate (1) form a rotating structure, and the base plate (1) and the positioning plate (6) are slidably connected. The positioning bolt (7) and the positioning hole (8) are threaded.

4. The explosion-proof hydraulic crane according to claim 1, characterized in that: The jack (9) and the outer boom (10) are rotatably connected to the main rod (5), and the output shaft of the jack (9) and the outer boom (10) are rotatably set.

5. The explosion-proof hydraulic crane according to claim 1, characterized in that: The inner boom (11) and the outer boom (10) are slidably connected, and the adjusting sleeve (16) and the transmission rod (13) are threadedly connected.

6. The explosion-proof hydraulic crane according to claim 1, characterized in that: The limiting mechanism (15) includes a knob (1501), a clamping block (1502) and an anti-slip pad (1503). The knob (1501) is threaded onto the upper inner wall of the bracket (14), and the clamping block (1502) is rotatably mounted on the lower end of the knob (1501). The lower surface of the clamping block (1502) is adhered to the anti-slip pad (1503). The clamping block (1502) and the bracket (14) are slidably connected, and the anti-slip pad (1503) and the adjusting sleeve (16) are fitted together.

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