A pneumatic crane for material loading

Abstract

This utility model discloses a pneumatic crane for material loading, including a support column, a horizontal beam swing arm, and a pneumatic telescopic rod. A movable connector and an I-shaped slider are provided between the horizontal beam swing arm and the pneumatic telescopic rod. A T-shaped track groove is formed at the bottom of the horizontal beam swing arm, and the I-shaped slider is slidably connected to the inner wall of the T-shaped track groove and the bottom of the horizontal beam swing arm. The movable connector includes a fixed rod and a lower movable column, with the fixed rod installed at the bottom of the I-shaped slider. A sliding limiting sleeve is used to simultaneously fit the fixed rod and the lower movable column on the outside. This utility model locks the movable connector, restricting the movement of the fixed rod and the lower movable column, keeping the horizontal beam swing arm and the pneumatic telescopic rod relatively fixed, preventing unexpected swinging or rotation of the horizontal beam swing arm, ensuring stable transport trajectory, eliminating the need for additional temporary fixing parts, and allowing convenient switching between the movable connection and locked states. Operation is simple and does not affect production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of crane technology, specifically a pneumatic crane for material loading. Background Technology

[0002] In the field of material handling in industrial production, efficient and safe material transfer is crucial for both production efficiency and operational safety. Pneumatic cranes, powered by compressed air, have become commonly used equipment due to their advantages of no electrical sparks, cleanliness, and resistance to harsh environments. To improve transfer flexibility and adapt to the needs of loading materials of various sizes and at multiple workstations, existing pneumatic cranes typically employ a movable connection between the pneumatic telescopic rod and the horizontal beam swing arm. This connection uses bearings, universal joints, or hinges to achieve a certain range of swing and rotation, expanding the transfer coverage and solving the problem of limited transfer range caused by fixed connections. However, in actual production, when transferring heavy, bulky raw materials, high-precision parts, or fragile materials, the core requirement is cargo stability, preventing unexpected swing or rotation of the horizontal beam swing arm that could cause material displacement or falling. The existing movable connection structure lacks a reliable fixing mechanism. When stable transfer is required, gaps or degrees of freedom in the connection parts will cause additional shaking, making it impossible to guarantee trajectory stability. If temporary fixing parts are added, not only is the operation cumbersome and inefficient, but the fixing strength is also difficult to adapt to different loads, posing safety hazards. As a result, the existing pneumatic cranes cannot achieve both "flexible adjustment" and "stable transfer", which limits their application in the transfer of related materials.

[0003] Therefore, this utility model provides a pneumatic crane for material loading. Utility Model Content

[0004] This utility model provides a pneumatic crane for material loading, aiming to solve the problems in the background art mentioned above.

[0005] To solve the above problems, this utility model is implemented through the following technical solution: A pneumatic crane for material feeding includes a support column, a horizontal beam swing arm, and a pneumatic telescopic rod. A movable connector and an I-shaped slider are provided between the horizontal beam swing arm and the pneumatic telescopic rod. A T-shaped track groove is provided at the bottom of the horizontal beam swing arm. The I-shaped slider is slidably connected to the inner wall of the T-shaped track groove and the bottom of the horizontal beam swing arm. The movable connector includes a fixed rod and a lower movable column. The fixed rod is installed at the bottom of the I-shaped slider, and the lower movable column is installed at the top of the pneumatic telescopic rod. A docking half-ring is installed at one end of both the fixed rod and the lower movable column. The fixed rod and the lower movable column are movably connected through the two docking half-rings. A limit sleeve is provided at the bottom of the I-shaped slider. The limit sleeve is slidably connected to the outside of the fixed rod and the lower movable column.

[0006] Preferably, one end of the crossbeam swing arm is provided with a protrusion and a sealing plate, and the sealing plate is detachably connected to the protrusion by bolts.

[0007] Preferably, an electric telescopic rod is installed inside the I-shaped slider, and a connecting plate is installed between the output end of the electric telescopic rod and the limiting sleeve.

[0008] Preferably, the bottom of the limiting sleeve is provided with an annular rounded corner, and the lower movable column is in contact with the annular rounded corner surface.

[0009] Preferably, a plurality of limiting oblique tooth plates are provided on the outer side of the lower movable column, and a plurality of limiting slots are provided at the bottom of the limiting sleeve, with the limiting oblique tooth plates inserted into the inner wall of the limiting slots.

[0010] Preferably, a plurality of ball bearings are embedded in the lower wall of the top of the I-shaped slider, and the ball bearings are slidably connected to the inner wall of the T-shaped track groove.

[0011] Beneficial effects

[0012] Compared with the prior art, the present invention has the following advantages:

[0013] This utility model uses a sliding limiting sleeve to simultaneously fit over the outside of the fixed rod and the lower movable column, locking the movable connecting parts and restricting the movement of the fixed rod and the lower movable column. This keeps the crossbeam swing arm and the pneumatic telescopic rod relatively fixed, preventing unexpected swinging and rotation of the crossbeam swing arm, ensuring stable transport trajectory, eliminating the need for additional temporary fixing parts, and allowing for convenient switching between movable connection and locked states. The operation is simple and does not affect production efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of this utility model. Figure 1 ;

[0015] Figure 2 This is a schematic diagram of the three-dimensional structure of this utility model. Figure 2 ;

[0016] Figure 3 This is the utility model Figure 2 A magnified schematic diagram of the structure at point A in the middle;

[0017] Figure 4 This is an exploded view of the components such as the movable connector in this utility model. Figure 1 ;

[0018] Figure 5 This is an exploded view of the components such as the movable connector in this utility model. Figure 2 .

[0019] In the diagram: 1. Support column; 2. Crossbeam swing arm; 21. T-shaped track groove; 22. Protrusion; 23. Sealing plate; 3. Pneumatic telescopic rod; 4. Movable connector; 41. Fixed rod; 42. Lower movable column; 43. Connecting half ring; 44. Limiting helical tooth plate; 5. I-shaped slider; 51. Limiting sleeve; 511. Circular arc rounded corner; 512. Limiting slot; 52. Electric telescopic rod; 521. Connecting plate; 53. Ball bearing. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-5 A pneumatic crane for material loading includes a support column 1, a crossbeam swing arm 2 and a pneumatic telescopic rod 3, with a movable connector 4 and an I-shaped slider 5 provided between the crossbeam swing arm 2 and the pneumatic telescopic rod 3.

[0022] The bottom of the crossbeam swing arm 2 is provided with a T-shaped track groove 21, and the I-shaped slider 5 is slidably connected to the inner wall of the T-shaped track groove 21 and the bottom of the crossbeam swing arm 2.

[0023] The movable connector 4 includes a fixed rod 41 and a lower movable column 42. The fixed rod 41 is installed at the bottom of the I-shaped slider 5, and the lower movable column 42 is installed at the top of the pneumatic telescopic rod 3. Both the fixed rod 41 and the lower movable column 42 are equipped with a docking half ring 43 at opposite ends. The fixed rod 41 and the lower movable column 42 are movably connected through the two docking half rings 43.

[0024] The bottom of the I-shaped slider 5 is provided with a limiting sleeve 51, which is slidably connected to the outside of the fixed rod 41 and the lower movable column 42.

[0025] It should be noted that when the limiting sleeve 51 described in this embodiment slides back to its original position, it disengages from the lower movable column 42. At this time, the fixed rod 41 and the lower movable column 42 can move. When the limiting sleeve 51 is simultaneously sleeved on the outside of the fixed rod 41 and the lower movable column 42, it locks the movable connector 4.

[0026] Specifically, when the pneumatic crane is in operation, if it is necessary to flexibly adjust the material transfer position to adapt to the needs of multi-station and multi-specification material loading, the upper limit sleeve 51 can be slid up to disengage it from the lower movable column 42. At this time, the fixed rod 41 and the lower movable column 42 are movably connected by the docking half ring 43, and the crossbeam swing arm 2 can swing and rotate relative to the pneumatic telescopic rod 3 to a certain extent. At the same time, the I-shaped slider 5 can slide in the T-shaped track groove 21 at the bottom of the crossbeam swing arm 2, thereby expanding the material transfer coverage area. When transferring heavy block raw materials, high-precision parts or fragile materials, and when the stability of the goods is required, the lower limit sleeve 51 is slid down to simultaneously fit on the fixed rod 41 and the lower movable column 42. On the outside of the moving column 42, the movable connecting part 4 is locked to restrict the movement of the fixed rod 41 and the lower movable column 42, so that the crossbeam swing arm 2 and the pneumatic telescopic rod 3 remain relatively fixed, avoiding unexpected swinging and rotation of the crossbeam swing arm 2, and ensuring stable transfer trajectory. With the setting of the limit sleeve 51, there is no need to add additional temporary fixing parts, and it can easily switch between the movable connection and the locked state. The operation is simple and does not affect the production efficiency. When locked, it can also effectively restrict the movement of the movable connecting part 4, ensure the connection strength, and prevent the material from shifting or falling due to the shaking of the crossbeam swing arm 2. Thus, it takes into account both "flexible adjustment" and "stable transfer", and solves the limitations of existing pneumatic cranes.

[0027] In one embodiment of this utility model, such as Figures 1-5 As shown, one end of the crossbeam swing arm 2 is provided with a protrusion 22 and a sealing plate 23, and the sealing plate 23 is detachably connected to the protrusion 22 by bolts.

[0028] Specifically, when it is necessary to adjust or maintain the structure of the crossbeam swing arm 2, the sealing plate 23 can be removed from the protrusion 22 by unscrewing the bolts. At this time, the internal structure of the crossbeam swing arm 2 or the structure related to the protrusion 22 can be operated, such as cleaning and repairing components such as the T-shaped track groove 21, or replacing suitable components according to different material feeding requirements. After the operation is completed, the sealing plate 23 is installed back onto the protrusion 22 with bolts, so that the crossbeam swing arm 2 restores its complete structure and continues to carry out material transfer work.

[0029] In one embodiment of this utility model, such as Figures 1-5 As shown, an electric telescopic rod 52 is installed inside the I-shaped slider 5, and a connecting plate 521 is installed between the output end of the electric telescopic rod 52 and the limiting sleeve 51.

[0030] It should be noted that the diameter of the electric telescopic rod 52 described in this embodiment is smaller than the width of the T-shaped track groove 21.

[0031] Specifically, when it is necessary to adjust the position of the limiting sleeve 51 to unlock or lock the movable connector 4, the electric telescopic rod 52 inside the I-shaped slider 5 is activated. Since the diameter of the electric telescopic rod 52 is smaller than the width of the T-shaped track groove 21, it is not limited by the space of the track groove. The electric telescopic rod 52 drives the limiting sleeve 51 to slide up and down through the connecting plate 521 at the output end. When the electric telescopic rod 52 extends, it pushes the limiting sleeve 51 down, so that it simultaneously fits on the outside of the fixed rod 41 and the lower movable column 42, thereby locking the movable connector 4. When the electric telescopic rod 52 retracts, it pulls the limiting sleeve 51 up, so that it disengages from the lower movable column 42, releasing the lock on the movable connector 4, allowing the fixed rod 41 and the lower movable column 42 to move, thereby achieving automated and convenient control of the locked state of the movable connector 4.

[0032] In one embodiment of this utility model, such as Figures 1-5 As shown, the bottom of the limiting sleeve 51 is provided with an annular rounded corner 511, and the lower movable column 42 is in contact with the surface of the annular rounded corner 511.

[0033] Specifically, when the limiting sleeve 51 slides up and down to switch the locked or unlocked state of the movable connector 4, the rounded corner 511 at the bottom of the limiting sleeve 51 remains in contact with the surface of the lower movable post 42. During the downward locking process of the limiting sleeve 51, the rounded corner 511 contacts the lower movable post 42 with its arc-shaped surface. The arc transition reduces the frictional resistance and mechanical wear during contact, allowing the limiting sleeve 51 to fit more smoothly onto the outside of the lower movable post 42. During the upward unlocking process of the limiting sleeve 51, the arc-shaped surface of the rounded corner 511 also contacts the lower movable post 42, reducing the resistance during separation and ensuring that the limiting sleeve 51 smoothly disengages from the lower movable post 42. This improves the smoothness of the sliding adjustment of the limiting sleeve 51 and the service life of the component, ensuring the reliability of the switching between the locked and unlocked states of the movable connector 4.

[0034] In one embodiment of this utility model, such as Figures 1-5 As shown, several limiting oblique tooth plates 44 are provided on the outer side of the lower movable column 42, and several limiting slots 512 are opened at the bottom of the limiting sleeve 51. The limiting oblique tooth plates 44 are inserted into the inner wall of the limiting slots 512.

[0035] Specifically, when it is necessary to lock the movable connector 4, the limiting sleeve 51 is slid downwards so that it is gradually fitted onto the outside of the lower movable column 42. During this process, several limiting oblique tooth plates 44 on the outside of the lower movable column 42 will be precisely aligned with several limiting slots 512 at the bottom of the limiting sleeve 51. Finally, the limiting oblique tooth plates 44 are inserted into the inner wall of the limiting slots 512. Through the interlocking structure of the tooth plates and slots, a mechanical limiting lock is formed, which further restricts the relative sliding or rotation between the limiting sleeve 51 and the lower movable column 42, strengthens the stability of the locked state of the movable connector 4, and avoids the locking failure caused by the unexpected displacement of the limiting sleeve 51 when the crossbeam swing arm 2 transfers materials.

[0036] In one embodiment of this utility model, such as Figures 1-5 As shown, several balls 53 are embedded in the lower wall of the top of the I-shaped slider 5, and the balls 53 are slidably connected to the inner wall of the T-shaped track groove 21.

[0037] Specifically, through the rolling action of the ball bearing 53, the sliding friction between the I-shaped slider 5 and the T-shaped track groove 21 is converted into rolling friction, which significantly reduces the frictional resistance when the two move relative to each other, making the sliding of the I-shaped slider 5 smoother and less strenuous, reducing the jamming phenomenon during the sliding process, and also reducing the mechanical wear between the components, extending the service life of the I-shaped slider 5 and the T-shaped track groove 21, and ensuring the flexibility and stability of the crossbeam swing arm 2 and the pneumatic telescopic rod 3 when adjusting their positions through the I-shaped slider 5.

[0038] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0039] Working principle: When this pneumatic crane is working, it uses compressed air as a power source. The support column 1 supports the horizontal beam swing arm 2. The horizontal beam swing arm 2 and the pneumatic telescopic rod 3 cooperate with the movable connecting piece 4 and the I-shaped slider 5 to realize material transfer. The I-shaped slider 5 slides in the T-shaped track groove 21 at the bottom of the horizontal beam swing arm 2. The ball bearing 53 at its top converts sliding friction into rolling friction, reducing resistance and wear. When flexible adjustment is required, the electric telescopic rod 52 inside the I-shaped slider 5 is activated. Through the connecting plate 521, the limiting sleeve 51 is pulled upward and disengaged from the lower movable column 42. The fixed rod 41 and the lower movable column 42 are then connected. The column 42 is movably connected by the docking half ring 43, allowing the crossbeam swing arm 2 to swing and rotate, expanding the transport range. When stable transport is required, the electric telescopic rod 52 pushes the limiting sleeve 51 down, and the bottom ring arc rounded corner 511 reduces friction with the lower movable column 42, so that the limiting sleeve 51 covers the fixed rod 41 and the lower movable column 42, and the limiting helical tooth plate 44 of the lower movable column 42 is inserted into the limiting slot 512 of the limiting sleeve 51 to lock, preventing the crossbeam swing arm 2 from shaking. During maintenance, the sealing plate 23 on one end of the crossbeam swing arm 2 can be removed for inspection, achieving both flexible adjustment and stable transport.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pneumatic crane for material loading, comprising a support column (1), a horizontal beam swing arm (2), and a pneumatic telescopic rod (3), characterized in that, A movable connector (4) and an I-shaped slider (5) are provided between the crossbeam swing arm (2) and the pneumatic telescopic rod (3), wherein, The bottom of the crossbeam swing arm (2) is provided with a T-shaped track groove (21), and the I-shaped slider (5) is slidably connected to the inner wall of the T-shaped track groove (21) and the bottom of the crossbeam swing arm (2); The movable connector (4) includes a fixed rod (41) and a lower movable column (42). The fixed rod (41) is installed at the bottom of the I-shaped slider (5), and the lower movable column (42) is installed at the top of the pneumatic telescopic rod (3). A docking half-ring (43) is installed at one end of both the fixed rod (41) and the lower movable column (42). The fixed rod (41) and the lower movable column (42) are movably connected through the two docking half-rings (43). The bottom of the I-shaped slider (5) is provided with a limiting sleeve (51), which is slidably connected to the outside of the fixed rod (41) and the lower movable column (42).

2. A pneumatic crane for material loading according to claim 1, characterized in that, One end of the crossbeam swing arm (2) is provided with a protrusion (22) and a sealing plate (23), and the sealing plate (23) is detachably connected to the protrusion (22) by bolts.

3. A pneumatic crane for material loading according to claim 1 or 2, characterized in that, An electric telescopic rod (52) is installed inside the I-shaped slider (5), and a connecting plate (521) is installed between the output end of the electric telescopic rod (52) and the limiting sleeve (51).

4. A pneumatic crane for material loading according to claim 3, characterized in that, The bottom of the limiting sleeve (51) is provided with an annular rounded corner (511), and the lower movable column (42) is in contact with the surface of the annular rounded corner (511).

5. A pneumatic crane for material loading according to claim 4, characterized in that, The lower movable column (42) is provided with several limiting oblique tooth plates (44) on its outer side, and the bottom of the limiting sleeve (51) is provided with several limiting slots (512). The limiting oblique tooth plates (44) are inserted into the inner wall of the limiting slots (512).

6. A pneumatic crane for material loading according to claim 5, characterized in that, The bottom wall of the I-shaped slider (5) is embedded with several balls (53), which are slidably connected to the inner wall of the T-shaped track groove (21).

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