Excavating end head structure of excavator on construction site

Abstract

The utility model relates to the technical field of construction site excavators, in particular to a construction site excavator excavating end structure which comprises an extending arm, the bottom end of the left side of the extending arm is connected with the top end of a connecting mechanism, the bottom end of the connecting mechanism is connected with the top end of an excavator bucket, excavating teeth are fixedly arranged on the right side of the excavator bucket, and a protection mechanism is arranged in the excavator bucket. The protection mechanism comprises a limiting assembly, the limiting assembly is fixedly arranged on the upper side of the top end of the excavator bucket, the inner wall of the right side of the limiting assembly clamps the top end of a protection net, the protection net covers the inner wall of the interior of the excavator bucket, and the bottom end of the protection net is connected with the top end of a fixing plate. The excavator bucket is simple and easy to operate, meanwhile, the limiting function is added, economic losses and potential safety hazards caused by falling of the excavator bucket due to accidental falling of a plug pin are prevented, and the fixed plate fixed through welding can be fixed, protected and replaced through a limiting bolt, so that the maintenance time is shortened; the interior of the excavator bucket can be protected through the protective net, and damage such as pits caused by stones to the interior of the excavator bucket is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of construction site excavators, in particular to an excavation end structure of a construction site excavator. Background Art

[0002] Excavator, excavation machinery, also known as backhoe, is an earth-moving machinery that uses a bucket to dig materials above or below the bearing surface and loads them into transport vehicles or unloads them to stockpiles. The materials excavated by the excavator are mainly soil, coal, silt, and pre-loosened soil and rock. From the development of construction machinery in recent years, the development of excavators is relatively rapid, and excavators have become one of the most important construction machinery in engineering construction. The three most important parameters of excavators are operating weight, engine power and bucket capacity. According to the publication number CN211596868U, a multi-activity space hydraulic excavator for a construction site is disclosed, including a body, a cab is fixedly installed on the upper surface of the body, and a support frame is fixedly installed on the upper surface of the body, a main frame rotating shaft is also fixedly installed on the upper surface of the support frame, a hydraulic pump is also fixedly installed on the upper side of the main frame rotating shaft, and a main frame connecting plate is also provided on the upper side of the hydraulic pump. The main frame is fixedly installed on the upper side of the main frame connecting plate, and a cantilever is also fixedly installed on the middle part of the main frame, and a connecting rod is fixedly installed on the end of the cantilever. The multi-activity space hydraulic excavator on the construction site can work effectively in all directions, and the rotation of the main frame is very convenient, which greatly reduces the difficulty of operating the excavator, and can quickly and effectively complete the excavation work. In addition, the multi-activity space hydraulic excavator on the construction site is easy to move, the bucket is large in size, and the power is sufficient to meet various excavation needs on the construction site. However, although the connection between the bucket and the telescopic arm has the ability to be quickly installed and disassembled during use, it is easy to fall off during operation, resulting in the bucket falling off, affecting subsequent operations and posing certain safety hazards. Since the excavator needs to work for a long time and often digs into stones when digging, it is easy to cause damage to the inside of the bucket and cannot be used for a long time. Therefore, it is urgent to design an excavation end structure of the construction site excavator to solve the above problems. Utility Model Content

[0003] The utility model aims to provide an excavating head structure for a construction site excavator to solve the problem raised in the above-mentioned background technology that although the connection between the bucket and the telescopic arm has the ability to be quickly installed and disassembled during use, it is easy to fall off during operation, resulting in the bucket falling and affecting subsequent operations and posing certain safety hazards. Since the excavator needs to work for a long time and often digs up stones when digging, it is easy to cause damage to the inside of the bucket and cannot be used for a long time.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an excavation end structure of a construction site excavator, comprising an extension arm, the left bottom end of the extension arm is connected to the top of a connecting mechanism, the bottom end of the connecting mechanism is connected to the top of a bucket, digging teeth are fixedly arranged on the right side of the bucket, a protective mechanism is arranged inside the bucket, the protective mechanism comprises a limit assembly, the limit assembly is fixedly arranged on the upper side of the top of the bucket, the right inner wall of the limit assembly clamps the top of a protective net, the protective net covers the inner wall of the bucket, the bottom end of the protective net is connected to the top of a fixed plate, the bottom end of the fixed plate is welded and fixed to the rear side of the digging teeth inside the bucket, and a limit bolt is provided at the connection between the fixed plate and the protective net for fixing.

[0005] Preferably, a square block is fixedly provided at the left bottom end of each of the extension arms, and the square blocks are horizontally parallel to each other.

[0006] Preferably, two groups of semicircular blocks are fixedly provided on the left outer wall of the top end of the bucket, and the center of the semicircular block is horizontally provided with the center of the square block.

[0007] Preferably, the connecting mechanism comprises a C-shaped block, the bottom end of the C-shaped block is fixedly arranged at the left top end of the bucket, a square slot is provided at the right center of the C-shaped block, and side slots are provided on the inner front and rear walls of the square slot.

[0008] Preferably, a fixing block is placed inside the square slot, and a protruding block is fixed to the front end wall of the fixing block, and the protruding block is clamped inside the side slot. A fixing bolt is provided on the right side of the connection between the protruding block and the side slot for threaded fixation, and a latch is provided inside the C-row block, and the left side of the latch passes through the center of the semicircular block and the square block respectively and is clamped to the left on the inner left wall of the C-shaped block.

[0009] Preferably, the limiting assembly comprises a U-shaped block, the bottom end of the U-shaped block is fixedly arranged on the upper side of the top end of the bucket, and a baffle is fixedly arranged on the inner top end of the U-shaped block.

[0010] Preferably, fixed screws are threadedly inserted on both sides of the baffle, the bottom end of the fixed screws is connected to the top end of the pressure plate, the two sides of the pressure plate are connected to the inner side of the guide rail, and the outer side of the guide rail is fixed to the two inner walls of the U-shaped block.

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

[0012] The digging end structure of an excavator on a construction site can be equipped with a square slot and a side slot on the right wall of a C-shaped block in a connecting mechanism, and a fixed block and a protruding block can be engaged, and then fixed with a fixing bolt. Through this simple device, a latch can be used to connect the extension arm and the bucket. While being simple and easy to operate, a limit function is added to prevent the latch from accidentally falling off, causing the bucket to fall and causing economic losses and safety hazards.

[0013] The excavation end structure of a construction site excavator can fix the protective net by arranging a pressure plate that can be easily adjusted in the protective mechanism. The fixing plate welded and fixed inside the bucket can be fixed with limit bolts for protection and replacement to reduce maintenance time. The inside of the bucket can be protected by the protective net to reduce damage such as pits inside the bucket caused by stones. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front view schematic diagram of the utility model;

[0015] Figure 2 It is a partial schematic diagram of the bucket of the utility model;

[0016] Figure 3 It is an enlarged schematic diagram of the connection mechanism of the utility model;

[0017] Figure 4 This is a front cross-sectional schematic diagram of the bucket of the utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the limit assembly of the utility model.

[0019] In the figure: 1. extension arm; 11. square block; 2. bucket; 21. semicircular block; 3. connecting mechanism; 31. C-shaped block; 32. square slot; 33. side slot; 34. fixing block; 35. protruding block; 36. fixing bolt; 37. latch; 4. digging tooth; 5. protection mechanism; 51. limit assembly; 511. U-shaped block; 512. baffle; 513. fixing screw; 514. pressure plate; 515. guide rail; 52. protection net; 53. fixing plate; 54. limit bolt. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-5The utility model provides an embodiment: an excavation end structure of a construction site excavator, including an extension arm 1, characterized in that: the left bottom end of the extension arm 1 is connected to the top of a connecting mechanism 3, the bottom end of the connecting mechanism 3 is connected to the top of a bucket 2, a digging tooth 4 is fixedly arranged on the right side of the bucket 2, and a protective mechanism 5 is arranged inside the bucket 2, the protective mechanism 5 includes a limiting component 51, the limiting component 51 is fixedly arranged on the upper side of the top of the bucket 2, the right inner wall of the limiting component 51 clamps the top of a protective net 52, the protective net 52 covers the inner wall of the bucket 2, the bottom end of the protective net 52 is connected to the top of a fixing plate 53, the bottom end of the fixing plate 53 is welded and fixed to the rear side of the digging tooth 4 inside the bucket 2, and a limiting bolt 54 is provided at the connection between the fixing plate 53 and the protective net 52 for fixing.

[0022] As a further feature of the present invention, a square clamping block 11 is fixedly disposed at the left bottom end of the extension arm 1, and the square clamping blocks 11 are horizontally parallel to each other, so as to facilitate the use of a latch to connect the bucket.

[0023] Furthermore, two groups of semicircular blocks 21 are fixedly arranged on the left outer wall of the top of the bucket 2, and the center of the semicircular block 21 is horizontally arranged at the center of the square block 11, so as to facilitate the use of a latch to connect the telescopic arm.

[0024] Furthermore, the connecting mechanism 3 includes a C-shaped block 31, the bottom end of the C-shaped block 31 is fixedly arranged on the left top end of the bucket 2, a square slot 32 is provided in the right center of the C-shaped block 31, and side slots 33 are provided on the front and rear walls of the square slot 32. A fixing block 34 is placed inside the square slot 32, and a protruding block 35 is fixedly arranged on the front end wall of the fixing block 34. The protruding block 35 is clamped inside the side slot 33, and a fixing bolt 36 is provided on the right side of the connection between the protruding block 35 and the side slot 33 for threaded fixing. A latch 37 is provided inside the C-shaped block 31, and the left side of the latch 37 respectively passes through the center of the semicircular block 21 and the square block 11 and is clamped on the left inner left wall of the C-shaped block 31. It is simple and easy to operate, and a limit function is added to prevent the latch from accidentally falling off, causing economic losses and safety hazards caused by the bucket falling.

[0025] As a further feature of the present invention, the limiting assembly 51 includes a U-shaped block 511, the bottom end of the U-shaped block 511 is fixedly mounted on the upper side of the top of the bucket 2, a baffle plate 512 is fixedly mounted on the inner top of the U-shaped block 511, both sides of the baffle plate 512 are threadedly inserted with fixed screw rods 513, the bottom end of the fixed screw rod 513 is connected to the top of a pressure plate 514, both sides of the pressure plate 514 are connected to the inner side of a guide rail 515, and the outer sides of the guide rail 515 are fixedly mounted on the two inner walls of the U-shaped block 511, so as to reduce maintenance time by performing fixed protection replacement.

[0026] Working principle: When in use, the user makes the square block 11 at the bottom end of the telescopic arm 1 parallel to the semicircular block 21 on the left side of the top of the bucket 2, and then uses the pin 37 to penetrate and fix it, and then places the fixing block 34 and the protruding blocks 35 fixed at the front and rear ends in the square slot 32 and the side slot 33 on the right wall of the C-shaped block 31, and then uses the fixing bolts 36 to thread them, and then loosens the fixing screws 513 on both sides of the top of the baffle 512 in the limiting assembly 51 to lift the bottom pressure plate 514 and then place the top of the protective net 52 on the top of the U-shaped block 511 at the bottom of the pressure plate 514, and then tightens the fixing screw 513 to press the pressure plate 514 tightly against the protective net 52, and then lays the center of the protective net 52 inside the bucket 2. After that, the bottom end of the protective net 52 can be fixed to the top of the fixing plate 53 through the limiting bolts 54. This is the entire working principle of the utility model.

[0027] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. An excavation head structure of a construction site excavator, comprising an extension arm (1), characterized in that: The left bottom end of the extension arm (1) is connected to the top end of the connection mechanism (3), the bottom end of the connection mechanism (3) is connected to the top end of the bucket (2), the right side of the bucket (2) is fixedly provided with a digging tooth (4), the interior of the bucket (2) is provided with a protective mechanism (5), the protective mechanism (5) comprises a limiting assembly (51), the limiting assembly (51) is fixedly provided on the upper side of the top end of the bucket (2), the right inner wall of the limiting assembly (51) clamps the top end of a protective net (52), the protective net (52) covers the inner wall of the bucket (2), the bottom end of the protective net (52) is connected to the top end of a fixing plate (53), the bottom end of the fixing plate (53) is welded and fixedly provided on the rear side of the digging tooth (4) inside the bucket (2), and a limiting bolt (54) is provided at the connection between the fixing plate (53) and the protective net (52) for fixing.

2. The excavation head structure of a construction site excavator according to claim 1, characterized in that: A square clamping block (11) is fixedly arranged at the left bottom end of each extension arm (1), and the square clamping blocks (11) are horizontally parallel to each other.

3. The excavation head structure of a construction site excavator according to claim 1, characterized in that: Two groups of semicircular clamping blocks (21) are fixedly arranged on the left outer wall of the top end of the bucket (2), and the center of the semicircular clamping block (21) is horizontally arranged at the center of the square clamping block (11).

4. The excavation head structure of a construction site excavator according to claim 1, characterized in that: The connecting mechanism (3) comprises a C-shaped block (31), the bottom end of the C-shaped block (31) is fixedly arranged on the left top end of the bucket (2), a square slot (32) is provided at the right center of the C-shaped block (31), and side slots (33) are provided on the front and rear walls inside the square slot (32).

5. The excavation head structure of a construction site excavator according to claim 4, characterized in that: A fixing block (34) is placed inside the square clamping groove (32), and a protruding block (35) is fixedly arranged on the front end wall of the fixing block (34). The protruding block (35) is clamped inside the side groove (33), and a fixing bolt (36) is arranged on the right side of the connection between the protruding block (35) and the side groove (33) for threaded fixing. A latch (37) is arranged inside the C-shaped block (31), and the left side of the latch (37) respectively passes through the center of the semicircular clamping block (21) and the square clamping block (11) and is clamped to the left of the inner left wall of the C-shaped block (31).

6. The excavation head structure of a construction site excavator according to claim 1, characterized in that: The limiting assembly (51) comprises a U-shaped block (511), the bottom end of the U-shaped block (511) is fixedly arranged on the upper side of the top end of the bucket (2), and a baffle (512) is fixedly arranged on the inner top end of the U-shaped block (511).

7. The excavation head structure of a construction site excavator according to claim 6, characterized in that: Fixed screw rods (513) are threadedly inserted on both sides of the baffle (512), the bottom end of the fixed screw rod (513) is connected to the top end of the pressure plate (514), the two sides of the pressure plate (514) are connected to the inner side of the guide rail (515), and the outer side of the guide rail (515) is fixed to the two inner walls of the U-shaped block (511).

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