Adjustable self-locking structure of bearing pump truck

Abstract

The utility model discloses an adjustable self-locking structure of a bearing pump truck, which relates to the technical field of bearing pump trucks and comprises a fixing block, an adjusting disc is mounted on the outer wall of the fixing block, a clamping groove is formed in the outer wall of the adjusting disc, a fixing sleeve is mounted on the outer wall of the adjusting disc, a locking rod is mounted on the inner wall of the fixing sleeve, and the locking rod is connected with the clamping groove. Limiting springs are installed on the outer walls of the locking rods, upper supporting legs are welded to the outer walls of the adjusting discs, and adjusting shafts are installed at the bottoms of the upper supporting legs. Through the arrangement of the fixing block, the adjusting disc, the clamping groove, the fixing sleeve, the locking rod and the limiting spring, the locking rod is pulled outwards, then the adjusting disc is rotated by 90 degrees, meanwhile, the locking rod is loosened, the locking rod is pushed inwards through the elastic force of the limiting spring, the locking rod and the clamping groove are automatically clamped and locked, the adjusting disc, the locking rod and the limiting spring are used in cooperation, and the locking effect is good. The angle of the upper supporting leg can be adjusted, the upper supporting leg is automatically locked and fixed, and the ground rubbing condition is avoided.

Description

Technical Field

[0001] This utility model relates to the field of carrier pump truck technology, specifically an adjustable carrier pump truck self-locking structure. Background Technology

[0002] Concrete pump trucks, also known as carrier-mounted pump trucks, are increasingly used in various construction projects due to the expanding scale of construction projects and the growing complexity of construction techniques. The booms of concrete pump trucks are typically long and need to extend to a certain height and angle to transport concrete, resulting in a high center of gravity that shifts with boom movement. Therefore, hydraulic outriggers are needed for stable support and to cope with complex and changing loads, making the pump truck more stable. However, existing carrier-mounted pump trucks often have integrated, vertically mounted outriggers. When the pump truck travels over uneven terrain such as ditches and potholes, the outriggers are prone to scraping the ground, causing damage. Furthermore, when the load is too large, the pressure between the outriggers and the ground increases, making soft ground prone to cracking, resulting in unstable support for the outriggers. To solve these problems, an adjustable self-locking structure for carrier-mounted pump trucks is needed.

[0003] An existing type of carrier pump truck has the problem that it cannot adjust the angle of the outriggers, perform self-locking operation, or increase the contact area between the outriggers and the ground during operation. Therefore, there is an urgent need for an adjustable carrier pump truck self-locking structure. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide an adjustable self-locking structure for a carrier pump truck, so as to solve the problems that existing carrier pump trucks cannot adjust the angle of the outriggers and perform self-locking operations, and cannot increase the contact area between the outriggers and the ground.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an adjustable self-locking structure for a load-bearing pump truck, comprising a fixing block, an adjusting disc mounted on the outer wall of the fixing block, a slot formed on the outer wall of the adjusting disc, a fixing sleeve mounted on the outer wall of the adjusting disc, a locking rod mounted on the inner wall of the fixing sleeve, a limit spring mounted on the outer wall of the locking rod, an upper support leg welded to the outer wall of the adjusting disc, an adjusting shaft mounted at the bottom of the upper support leg, an adjusting sleeve mounted on the outer wall of the adjusting shaft, a pressure sleeve mounted on the outer wall of the adjusting shaft, a lower support leg mounted inside the upper support leg, an auxiliary bracket mounted on the side wall of the lower support leg, and a fixing shaft mounted on the inner wall of the auxiliary bracket.

[0006] Preferably, the fixing block is movably connected to the adjusting plate, and the slots are arranged in a rectangular array with the central axis of the adjusting plate as the center.

[0007] Preferably, the locking rod forms a telescopic structure with the fixing sleeve via a limiting spring, and the locking rod is engaged with the fixing block.

[0008] Preferably, the adjusting shaft is threadedly connected to the adjusting sleeve, and the adjusting shaft is movably connected to the pressure sleeve.

[0009] Preferably, the auxiliary support is engaged with the lower support leg, and the auxiliary support is arranged in a rectangular array with the central axis of the lower support leg as the center.

[0010] Preferably, the auxiliary bracket is tightly fitted with the pressure sleeve, and the fixed shaft passes through the interior of the auxiliary bracket and is threadedly connected to the lower support leg.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model, through the setting of a fixed block, adjusting plate, slot, fixing sleeve, locking rod and limiting spring, allows the upper support leg to be angled and automatically locked by pulling the locking rod outward, rotating the adjusting plate 90 degrees and releasing the locking rod at the same time. The locking rod is pushed inward by the elastic force of the limiting spring, so that the locking rod and the slot are automatically locked. The coordinated use of the adjusting plate, locking rod and limiting spring allows the upper support leg to be angled and automatically locked to prevent it from scraping the ground.

[0013] 2. This utility model, through the setting of upper support leg, adjusting shaft, adjusting sleeve, pressure sleeve, lower support leg, auxiliary bracket and fixed shaft, when the load on the pump truck is too large, the auxiliary bracket is rotated open, and then the adjusting sleeve is rotated to press down the pressure sleeve, so that the pressure sleeve squeezes and fixes the auxiliary bracket. Then, through the cooperation of the auxiliary bracket and the lower support leg, the contact area with the ground is increased, the load is evenly distributed, thereby increasing the stability of the pump truck. Attached Figure Description

[0014] Figure 1 This is a structural schematic diagram of the present utility model from the front view;

[0015] Figure 2 This is a side view of the structure of this utility model;

[0016] Figure 3 This is a schematic diagram showing the internal cross-section of the fixing sleeve of this utility model;

[0017] Figure 4 This is a schematic diagram of the unfolded structure of the components surrounding the lower support leg of this utility model.

[0018] In the diagram: 1. Fixing block; 2. Adjusting disc; 3. Slot; 4. Fixing sleeve; 5. Locking rod; 6. Limiting spring; 7. Upper support leg; 8. Adjusting shaft; 9. Adjusting sleeve; 10. Pressure sleeve; 11. Lower support leg; 12. Auxiliary bracket; 13. Fixing shaft. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0020] The embodiments of this utility model will be described below based on its overall structure.

[0021] Please see Figure 1-4 An adjustable self-locking structure for a load-bearing pump truck includes a fixed block 1, an adjusting disc 2 mounted on the outer wall of the fixed block 1, a slot 3 formed on the outer wall of the adjusting disc 2, a fixing sleeve 4 mounted on the outer wall of the adjusting disc 2, a locking rod 5 mounted on the inner wall of the fixing sleeve 4, and a limit spring 6 mounted on the outer wall of the locking rod 5. The fixed block 1 and the adjusting disc 2 are movably connected. The slots 3 are arranged in a rectangular array centered on the central axis of the adjusting disc 2. The locking rod 5 forms a telescopic structure with the fixing sleeve 4 through the limit spring 6. The upper support leg 7 is engaged with the fixed block 1. Through the fixed block 1, adjusting plate 2, slot 3, fixing sleeve 4, locking rod 5 and limiting spring 6, the locking rod 5 is pulled outward and the adjusting plate 2 is rotated 90 degrees. At the same time, the locking rod 5 is released. The locking rod 5 is pushed inward by the elastic force of the limiting spring 6, so that the locking rod 5 and slot 3 are automatically engaged and locked. The coordinated use of adjusting plate 2, locking rod 5 and limiting spring 6 allows the upper support leg 7 to be angled and automatically locked to prevent it from scraping the ground.

[0022] Please see Figure 1-4 An adjustable self-locking structure for a load-bearing pump truck includes an upper support leg 7 welded to the outer wall of an adjusting disc 2. An adjusting shaft 8 is installed at the bottom of the upper support leg 7, an adjusting sleeve 9 is installed on the outer wall of the adjusting shaft 8, and a pressure sleeve 10 is installed on the outer wall of the adjusting shaft 8. A lower support leg 11 is installed inside the upper support leg 7, and an auxiliary bracket 12 is installed on the side wall of the lower support leg 11. A fixed shaft 13 is installed on the inner wall of the auxiliary bracket 12. The adjusting shaft 8 is threadedly connected to the adjusting sleeve 9, and the adjusting shaft 8 is movably connected to the pressure sleeve 10. The auxiliary bracket 12 is engaged with the lower support leg 11, and the auxiliary bracket 12 is arranged in a rectangular array centered on the central axis of the lower support leg 11. The auxiliary support 12 is tightly fitted with the pressure sleeve 10, and the fixed shaft 13 passes through the interior of the auxiliary support 12 and is threadedly connected to the lower support leg 11. Through the upper support leg 7, adjusting shaft 8, adjusting sleeve 9, pressure sleeve 10, lower support leg 11, auxiliary support 12 and fixed shaft 13, when the load on the pump truck is too large, the auxiliary support 12 is rotated open, and then the adjusting sleeve 9 is rotated to press down the pressure sleeve 10, so that the pressure sleeve 10 squeezes and fixes the auxiliary support 12. Then, through the cooperation of the auxiliary support 12 and the lower support leg 11, the contact area with the ground is increased, the load is evenly distributed, and thus the stability of the pump truck is increased.

[0023] Working principle: In use, first move the device to the required position, then weld the fixing block 1 to the body of the pump truck, then pull the locking rod 5 outward, and then rotate the adjusting plate 2 90 degrees while releasing the locking rod 5. The locking rod 5 is pushed inward by the elastic force of the limiting spring 6, so that the locking rod 5 and the slot 3 automatically engage and lock. The cooperation of the adjusting plate 2, the locking rod 5 and the limiting spring 6 allows the upper support leg 7 to be angled and automatically locked to prevent it from scraping the ground. Then, when the load on the pump truck is too large, the lower support leg 11 is hydraulically extended from the inside of the upper support leg 7, and then the auxiliary support 12 is rotated open. Then, the adjusting sleeve 9 is rotated to press down the pressure sleeve 10, so that the pressure sleeve 10 squeezes and fixes the auxiliary support 12. Then, the cooperation of the auxiliary support 12 and the lower support leg 11 increases the contact area with the ground and evenly distributes the load, thereby increasing the stability of the pump truck. This completes the use of the device. The contents not described in detail in this manual are existing technologies known to those skilled in the art.

[0024] 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 adjustable self-locking structure for a load-bearing pump truck, comprising a fixing block (1), characterized in that: An adjusting plate (2) is installed on the outer wall of the fixing block (1). A slot (3) is opened on the outer wall of the adjusting plate (2). A fixing sleeve (4) is installed on the outer wall of the adjusting plate (2). A locking rod (5) is installed on the inner wall of the fixing sleeve (4). A limit spring (6) is installed on the outer wall of the locking rod (5). An upper support leg (7) is welded on the outer wall of the adjusting plate (2). An adjusting shaft (8) is installed at the bottom of the upper support leg (7). An adjusting sleeve (9) is installed on the outer wall of the adjusting shaft (8). A pressure sleeve (10) is installed on the outer wall of the adjusting shaft (8). A lower support leg (11) is installed inside the upper support leg (7). An auxiliary bracket (12) is installed on the side wall of the lower support leg (11). A fixing shaft (13) is installed on the inner wall of the auxiliary bracket (12).

2. The adjustable load-bearing pump truck self-locking structure according to claim 1, characterized in that: The fixed block (1) is movably connected to the adjusting plate (2), and the slots (3) are arranged in a rectangular array with the central axis of the adjusting plate (2) as the center.

3. The adjustable load-bearing pump truck self-locking structure according to claim 1, characterized in that: The locking rod (5) forms a telescopic structure with the fixing sleeve (4) through the limiting spring (6), and the locking rod (5) is engaged with the fixing block (1).

4. The adjustable load-bearing pump truck self-locking structure according to claim 1, characterized in that: The adjusting shaft (8) is threadedly connected to the adjusting sleeve (9), and the adjusting shaft (8) is movably connected to the pressure sleeve (10).

5. The adjustable load-bearing pump truck self-locking structure according to claim 1, characterized in that: The auxiliary support (12) is engaged with the lower support leg (11), and the auxiliary support (12) is arranged in a rectangular array with the central axis of the lower support leg (11) as the center.

6. The adjustable load-bearing pump truck self-locking structure according to claim 1, characterized in that: The auxiliary bracket (12) fits tightly with the pressure sleeve (10), and the fixed shaft (13) passes through the interior of the auxiliary bracket (12) and is threadedly connected to the lower support leg (11).

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