Quick-release bucket shaft end bidirectional locking mechanism

Abstract

The utility model discloses a kind of quick-release bucket shaft end bidirectional locking mechanisms, including lug, the one side of the lug is provided with shaft rod, the one end of the shaft rod close to lug is through lug and is mutually inserted with lug, the left end of the shaft rod is fixedly connected with connecting block, the inside of the connecting block is movably connected with locating plate by pin shaft, the side of the locating plate away from connecting block is extended to the right end of shaft rod by the back of lug and is contacted with the surface of shaft rod, the side of the locating plate close to connecting block is fixedly connected with force bar, the left end of the shaft rod is threadedly connected with bolt, the process of bolt screw thread movement can extrude force bar swing.The utility model is different from traditional single plug-in buckle mode by a kind of brand-new structure scheme, aims at fundamentally solving the problem of loosening and buckle fatigue failure caused by vibration, the design of locating plate is subsequent bidirectional locking mechanism, constitutes a potential lever or wedge structure.

Description

Technical Field

[0001] This utility model relates to the field of bucket shaft technology, specifically a quick-release bucket shaft end bidirectional locking mechanism. Background Technology

[0002] Bucket shaft is a technical term in the field of mechanical engineering, mainly used to connect the excavator bucket to the vehicle body.

[0003] For example, patent application number 201921016732.4 published on the China Patent Network, entitled "A Bucket Shaft for Easy Assembly," includes a first fixing plate, with a second fixing plate fixedly installed at each of the left and right ends of the first fixing plate. A bucket is connected to the opposite surfaces of the second fixing plates. A third fixing plate is provided at the lower end of the second fixing plate. A bucket shaft sleeve is provided on each of the left and right sides of the upper end of the first fixing plate, and a bucket shaft is inserted and connected between the middle of the two sets of bucket shaft sleeves. A support device is provided on the outer surface of the bucket shaft, and a connecting rod is provided at the right end of the bucket shaft. This utility model describes a bucket shaft for easy assembly. When assembly or replacement is required, pulling the bucket shaft to the left causes the first and second lead screws to be pulled by the connecting rod, thus retracting towards the connecting rod. Simultaneously, the first fixing block rotates to the left and enters the through hole, making it very convenient to detach the bucket shaft from the bucket shaft sleeve. This process greatly facilitates assembly and replacement, improving assembly efficiency and reducing the workload of assembly personnel.

[0004] However, the existing connection method of bucket shaft is relatively simple, mainly through plugging and then using a buckle for fixation. The vibration generated during the use of the bucket can easily affect the stability of the plugging of the bucket shaft. At the same time, the buckles that are used repeatedly are prone to loosening due to loss of elasticity, which affects the connection stability.

[0005] Therefore, it is necessary to redesign and modify the quick-release bucket shaft end bidirectional locking mechanism. Utility Model Content

[0006] To address the problems mentioned in the background art, the purpose of this utility model is to provide a quick-release bidirectional locking mechanism for the bucket shaft end, which has the advantage of improving connection stability. It solves the problems that the existing bucket shaft connection method is relatively simple, mainly fixed by plugging and then using a buckle. The vibration generated during the use of the bucket can easily affect the plugging stability of the bucket shaft. At the same time, the buckles that are repeatedly used are prone to loosening due to loss of elasticity, which affects the connection stability.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a quick-release bucket shaft end bidirectional locking mechanism, including a hanging lug; A shaft is provided on one side of the hanging ear. The end of the shaft near the hanging ear passes through the hanging ear and is inserted into the hanging ear. A connecting block is fixedly connected to the left end of the shaft. A positioning plate is movably connected inside the connecting block through a pin. The side of the positioning plate away from the connecting block extends through the back of the hanging ear to the right end of the shaft and contacts the surface of the shaft.

[0008] As a preferred embodiment of this utility model, a force-bearing rod is fixedly connected to the side of the positioning plate near the connecting block, and a bolt is threaded to the left end of the shaft. During the movement of the bolt thread, the force-bearing rod can be squeezed to swing.

[0009] As a preferred embodiment of this invention, a pressure block is fitted onto the surface of the bolt, and the outer surface of the pressure block is in contact with the surface of the force-bearing rod.

[0010] As a preferred embodiment of this utility model, an extension ring is fixedly connected to the left end of the shaft, and the extension ring is sleeved on the surface of the bolt and threadedly connected to the bolt.

[0011] As a preferred embodiment of this utility model, a plug is provided on the right side of the positioning plate, the end of the plug near the positioning plate passes through the positioning plate and extends into the interior of the shaft, and the plug and the shaft are plugged into each other.

[0012] In a preferred embodiment of this utility model, a vertical plate is fixedly connected to the right side of the positioning plate, and the side of the vertical plate away from the positioning plate is sleeved on the surface of the insertion rod. The insertion rod is slidably connected to the vertical plate, and a torsion block located on the right side of the vertical plate is fixedly connected to the right side of the insertion rod.

[0013] As a preferred embodiment of this utility model, a limiting ring is fixedly connected to the surface of the insertion rod between the upright plate and the positioning plate, and a compression spring is fixedly connected to the right side of the limiting ring and sleeved on the surface of the insertion rod. The side of the compression spring away from the limiting ring is in contact with the surface of the upright plate, and the compression spring is elastic.

[0014] As a preferred embodiment of this invention, a rubber pad is fixedly connected to the surface of the positioning plate, and the side of the rubber pad away from the positioning plate contacts the right end of the shaft, and the rubber pad is elastic.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model adopts a brand-new structural solution, which is different from the traditional single plug-in buckle method. It aims to fundamentally solve the problems of loosening caused by vibration and buckle fatigue failure. The positioning plate is designed as a subsequent two-way locking mechanism, forming a potential lever or wedge structure.

[0016] 2. This utility model uses bolts to compress the force-bearing rod, efficiently converting the rotational motion and axial thrust of the bolts into the swing motion of the positioning plate around the pin shaft, increasing the operating lever arm, so that a strong clamping force can be generated at the right end of the shaft with a smaller bolt tightening force.

[0017] 3. This utility model uses a pressure block as an intermediate component to protect the surface of the bolt and the surface of the load-bearing rod from direct friction and wear, thus extending their service life.

[0018] 4. This utility model provides a longer thread engagement length and reliable guiding support for the bolt through the extension ring, ensuring that the bolt runs smoothly, without eccentricity or jamming when rotating and advancing, thus improving the smoothness and accuracy of operation.

[0019] 5. This utility model directly locks the axial position of the positioning plate relative to the shaft by inserting the rod, mainly to prevent the shaft from accidentally moving to the left (towards the connecting block) and exiting the lug under the pressing state.

[0020] 6. This utility model provides a sliding guide for the insertion rod through the upright plate, ensuring that the insertion rod can move in a straight line without tilting during insertion and removal. The sleeve structure also limits unnecessary rotation of the insertion rod itself.

[0021] 7. This utility model uses the elastic force provided by the compression spring to act on the limiting ring, continuously pushing the insertion rod to the right, thereby ensuring that under normal circumstances the insertion rod can be automatically and reliably inserted into the position and "locked" in the shaft by the elastic force, preventing accidental loosening and dislodgement caused by vibration.

[0022] 8. This utility model increases the friction coefficient of the contact surface by using a rubber pad, making the positioning plate more firmly pressed and locked onto the shaft surface, effectively resisting micro-movements caused by vibration. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a top view of the structure of this utility model; Figure 3 This is a schematic diagram of the separation structure of this utility model; Figure 4 This is a schematic diagram of the unfolded structure of this utility model; Figure 5 This is a schematic diagram of the rear view structure of this utility model; Figure 6 This utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0024] In the diagram: 1. Hanging lug; 2. Shaft; 3. Connecting block; 4. Positioning plate; 5. Force rod; 6. Bolt; 7. Pressure block; 8. Extension ring; 9. Insert rod; 10. Vertical plate; 11. Torsion block; 12. Limiting ring; 13. Compression spring; 14. Rubber pad. Detailed Implementation

[0025] 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.

[0026] like Figures 1 to 6 As shown, the present invention provides a quick-release bucket shaft end bidirectional locking mechanism, including a hanging lug 1; A shaft 2 is provided on one side of the lug 1. The end of the shaft 2 near the lug 1 passes through the lug 1 and is inserted into the lug 1. A connecting block 3 is fixedly connected to the left end of the shaft 2. A positioning plate 4 is movably connected inside the connecting block 3 through a pin. The side of the positioning plate 4 away from the connecting block 3 extends through the back of the lug 1 to the right end of the shaft 2 and contacts the surface of the shaft 2.

[0027] refer to Figure 1 A force-bearing rod 5 is fixedly connected to the side of the positioning plate 4 near the connecting block 3. A bolt 6 is threadedly connected to the left end of the shaft 2. During the movement of the bolt 6, the force-bearing rod 5 can be squeezed to swing.

[0028] As a technical optimization of this utility model, by pressing the force-bearing rod 5 with bolt 6, the rotational motion and axial thrust of bolt 6 are efficiently converted into the swing motion of positioning plate 4 around the pin shaft, which increases the operating lever arm and allows a strong clamping force to be generated at the right end of shaft 2 with a smaller bolt tightening force.

[0029] refer to Figure 2 A pressure block 7 is fitted onto the surface of the bolt 6, and the outer surface of the pressure block 7 is in contact with the surface of the force-bearing rod 5.

[0030] As a technical optimization of this utility model, the pressure block 7 is used as an intermediate component to protect the surface of the bolt 6 and the surface of the force-bearing rod 5 from direct friction and wear, thereby extending their service life.

[0031] refer to Figure 6 An extension ring 8 is fixedly connected to the left end of the shaft 2. The extension ring 8 is sleeved on the surface of the bolt 6 and threadedly connected to the bolt 6.

[0032] As a technical optimization of this utility model, the extension ring 8 provides a longer thread engagement length and reliable guiding support for the bolt 6, ensuring that the bolt 6 runs smoothly, without eccentricity or jamming when rotating and advancing, thus improving the smoothness and accuracy of operation.

[0033] refer to Figure 3 A rod 9 is provided on the right side of the positioning plate 4. The end of the rod 9 near the positioning plate 4 passes through the positioning plate 4 and extends into the interior of the shaft 2. The rod 9 and the shaft 2 are interlocked.

[0034] As a technical optimization of this utility model, the axial position of the positioning plate 4 relative to the shaft 2 is directly locked by the insertion of the insertion rod 9. This is mainly to prevent the shaft 2 from accidentally moving to the left and out of the hanging ear 1 under the pressing state.

[0035] refer to Figure 3 A rod 9 is provided on the right side of the positioning plate 4. The end of the rod 9 near the positioning plate 4 passes through the positioning plate 4 and extends into the interior of the shaft 2. The rod 9 and the shaft 2 are interlocked.

[0036] As a technical optimization of this utility model, the upright plate 10 provides a sliding guide for the insertion rod 9, ensuring that the insertion rod 9 can move in a straight line without tilting when inserted and pulled out. The sleeve structure also restricts unnecessary rotation of the insertion rod 9 itself.

[0037] refer to Figure 3 A limiting ring 12 is fixedly connected to the surface of the insertion rod 9 between the upright plate 10 and the positioning plate 4. A compression spring 13 is fixedly connected to the right side of the limiting ring 12 and sleeved on the surface of the insertion rod 9. The side of the compression spring 13 away from the limiting ring 12 contacts the surface of the upright plate 10. The compression spring 13 is elastic.

[0038] As a technical optimization of this utility model, the elastic force provided by the compression spring 13 acts on the limiting ring 12, continuously pushing the insertion rod 9 to the right, thereby ensuring that under normal circumstances the insertion rod 9 can be automatically and reliably inserted into the position and "locked" in the shaft 2 by the elastic force, preventing accidental loosening and dislodgement caused by vibration.

[0039] refer to Figure 3 A rubber pad 14 is fixedly connected to the surface of the positioning plate 4. The side of the rubber pad 14 away from the positioning plate 4 contacts the right end of the shaft 2. The rubber pad 14 is elastic.

[0040] As a technical optimization of this utility model, the friction coefficient of the contact surface is increased by the rubber pad 14, which makes the clamping and locking effect of the positioning plate 4 on the surface of the shaft 2 more solid and effectively resists the micro-movement caused by vibration.

[0041] The working principle and usage process of this utility model are as follows: During installation, the operator inserts the shaft 2 from the left side of the lug 1, so that the right end of the shaft 2 passes through the lug 1 until the connecting block 3 at the left end of the shaft 2 is close to the left side of the lug 1. Then, the user tightens the bolt 6 located at the left end of the shaft 2. The bolt 6 engages with the extension ring 8 fixed at the left end of the shaft 2. As the bolt 6 moves, the pressure block 7 moves to the left. When the pressure block 7 moves to the left, its outer surface presses against the force rod 5 fixed to the left side of the positioning plate 4. The pressure applied to the force rod 5 causes the positioning plate 4 to rotate clockwise around the pin connecting it to the connecting block 3. When the positioning plate 4 rotates, its right end, which was originally in contact with the surface of the shaft 2, is lifted up and moves to the left, thus pressing tightly against the right end surface of the shaft 2 and the back of the lug 1 like a wedge. While the drive clamps, the insertion rod 9 mechanism on the right side of the positioning plate 4 provides reverse locking. The insertion rod 9 passes through the positioning plate 4 and is inserted into the preset hole at the right end of the shaft 2. The surface of the insertion rod 9 is fitted with a compression spring 13. In the natural state or during installation, the compression spring 13 is in a compressed or partially compressed state, which forces the limit ring 12 to move to the right, which is blocked by the upright plate 10. This pushes the insertion rod 9 firmly into the insertion hole of the shaft 2, preventing the shaft 2 from accidentally coming out to the left. When the left bolt 6 is tightened in place and the right insertion rod 9 has been inserted into the insertion hole of the shaft 2, the mechanism enters a bidirectional locking state.

[0042] In summary, this quick-release bucket shaft end bidirectional locking mechanism, through a novel structural scheme that differs from the traditional single plug-in buckle method, aims to fundamentally solve the problems of loosening caused by vibration and buckle fatigue failure. The design of the positioning plate 4 constitutes a potential lever or wedge structure for the subsequent bidirectional locking mechanism.

[0043] 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.

[0044] 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 quick-release bucket shaft end bidirectional locking mechanism, comprising a lug (1); Its features are: A shaft (2) is provided on one side of the lug (1). The end of the shaft (2) near the lug (1) passes through the lug (1) and is inserted into the lug (1). A connecting block (3) is fixedly connected to the left end of the shaft (2). A positioning plate (4) is movably connected inside the connecting block (3) through a pin. The side of the positioning plate (4) away from the connecting block (3) extends through the back of the lug (1) to the right end of the shaft (2) and contacts the surface of the shaft (2).

2. The quick-release bucket shaft end bidirectional locking mechanism according to claim 1, characterized in that: The positioning plate (4) is fixedly connected to a force rod (5) on the side near the connecting block (3), and the left end of the shaft (2) is threaded with a bolt (6). During the thread movement of the bolt (6), it can squeeze the force rod (5) to swing.

3. The quick-release bucket shaft end bidirectional locking mechanism according to claim 2, characterized in that: A pressure block (7) is fitted on the surface of the bolt (6), and the outer surface of the pressure block (7) is in contact with the surface of the force-bearing rod (5).

4. The quick-release bucket shaft end bidirectional locking mechanism according to claim 2, characterized in that: An extension ring (8) is fixedly connected to the left end of the shaft (2), and the extension ring (8) is sleeved on the surface of the bolt (6) and threadedly connected to the bolt (6).

5. The quick-release bucket shaft end bidirectional locking mechanism according to claim 1, characterized in that: A rod (9) is provided on the right side of the positioning plate (4). The end of the rod (9) near the positioning plate (4) passes through the positioning plate (4) and extends into the interior of the shaft (2). The rod (9) and the shaft (2) are interlocked.

6. A quick-release bidirectional locking mechanism for the bucket shaft end according to claim 5, characterized in that: A vertical plate (10) is fixedly connected to the right side of the positioning plate (4). The side of the vertical plate (10) away from the positioning plate (4) is sleeved on the surface of the insertion rod (9). The insertion rod (9) is slidably connected to the vertical plate (10). A torsion block (11) located on the right side of the vertical plate (10) is fixedly connected to the right side of the insertion rod (9).

7. A quick-release bidirectional locking mechanism for the bucket shaft end according to claim 6, characterized in that: A limiting ring (12) is fixedly connected to the surface of the insert (9) between the upright plate (10) and the positioning plate (4). A compression spring (13) is fixedly connected to the right side of the limiting ring (12) and sleeved on the surface of the insert (9). The side of the compression spring (13) away from the limiting ring (12) contacts the surface of the upright plate (10). The compression spring (13) is elastic.

8. The quick-release bucket shaft end bidirectional locking mechanism according to claim 1, characterized in that: A rubber pad (14) is fixedly connected to the surface of the positioning plate (4). The side of the rubber pad (14) away from the positioning plate (4) contacts the right end of the shaft (2). The rubber pad (14) is elastic.

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