Swing type quick connector for excavator

Abstract

The swing type quick connector for the excavator comprises a connecting rod fixing base, a swing oil cylinder and a quick connecting assembly, the swing oil cylinder can drive the quick connecting assembly to swing left and right, a second locking groove is formed in the position, close to the rear end, of the bottom of a quick connecting shell, and a locking supporting assembly is arranged in the quick connecting shell. A first locking groove is formed in the bottom of the locking supporting assembly, a linear oil cylinder is arranged on one side of the locking supporting assembly, the front end of a piston shaft on the linear oil cylinder is fixedly connected with the locking supporting assembly, a thrust sliding block is connected to the rear end of the piston shaft on the linear oil cylinder, and a baffle assembly is arranged at the other end of the thrust sliding block. The lower end part of the baffle assembly can slide into the second locking groove. The quick connector for the excavator solves the technical problem that an excavator bucket is prone to loosening and even falling off in the operation process of the excavator due to the fact that an existing quick connector for the excavator is not provided with a locking device. The quick connection device can be widely applied to quick connection of buckets.

Description

TECHNICAL FIELD

[0001] The utility model relates to a quick connector, in particular to a swing type quick connector for excavator. BACKGROUND

[0002] In order to realize the quick replacement of excavator bucket, the quick connector is usually installed below the connecting rod of the excavator, but the existing quick connector for excavator does not have a locking device, which causes the excavator bucket to loosen or even fall off during operation, reduces work efficiency, and even causes serious safety hazards. SUMMARY

[0003] The utility model provides a swing type quick connector for excavator, which is provided with a locking device, can avoid the problem of loosening or even falling off of the excavator bucket during operation, increase work efficiency, and avoid safety hazards caused by falling off of the excavator bucket.

[0004] Therefore, the utility model discloses a swing type quick connector for excavator, which comprises a connecting rod fixing seat, a swing oil cylinder and a quick connecting assembly.

[0005] The connecting rod fixing seat is provided with a connecting rod fixing shaft support plate, and the connecting rod fixing shaft support plate is fixedly provided with a connecting rod fixing shaft.

[0006] The outer part of the outer shell of the swing oil cylinder is fixedly provided with a first support seat plate, the first support seat plate is fixedly connected with the lower end of the connecting rod fixing shaft support plate, and the two sides of the main shaft of the swing oil cylinder are respectively fixedly provided with a second support seat plate.

[0007] The quick connecting assembly comprises a quick connecting shell, the upper end of the quick connecting shell is fixedly connected with the second support seat plate, and the swing oil cylinder can drive the quick connecting assembly to swing left and right.

[0008] The bottom of the quick connecting shell is provided with a second locking groove near the rear end, the opening direction of the second locking groove faces the rear side, the inside of the quick connecting shell is provided with a locking support assembly, the bottom of the locking support assembly is provided with a first locking groove, and the opening direction of the first locking groove faces the front side.

[0009] One side of the locking support assembly is provided with a push-pull device, the front end of the push-pull device is fixedly connected with the locking support assembly, and the push-pull device can drive the locking support assembly to slide forward and backward.

[0010] The rear end of the push-pull device is fixedly provided with a thrust sliding block, the other end of the thrust sliding block is provided with a baffle assembly, the push-pull device can drive the thrust sliding block to slide forward and backward, the thrust sliding block slides forward or backward, and the baffle assembly can slide downward or upward at the same time, and the lower end of the baffle assembly can slide into the second locking groove when the baffle assembly slides downward.

[0011] Preferably, the connecting rod fixed shaft support plates are respectively located at the left and right sides of the connecting rod fixed seats, the number of the connecting rod fixed shafts is multiple, and the multiple connecting rod fixed shafts are respectively located at the positions close to the front and rear sides between the left and right connecting rod fixed shaft support plates.

[0012] Preferably, the push-pull device is a linear oil cylinder, the linear oil cylinder is located at the inner position of the quick connection shell, the locking support assembly is located at the lower end of the linear oil cylinder, the locking support assembly is provided with a fixed connection section, a sliding connection section and a locking section, the fixed connection section is located at the upper section of the locking support assembly, the sliding connection section is located at the middle section of the locking support assembly, and the locking section is located at the lower section of the locking support assembly.

[0013] The middle position of the fixed connection section is fixedly connected with the front end of the piston shaft of the linear oil cylinder in the transverse direction.

[0014] The left and right sides of the sliding connection section are respectively provided with sliding grooves, the inner end faces of the left and right sides of the quick connection shell are respectively fixedly provided with sliding blocks, and the two sliding blocks are respectively connected with the two sliding grooves in a sliding mode, so as to realize the sliding connection between the locking support assembly and the sliding grooves.

[0015] The locking section and the lower end of the sliding connection section form a first locking groove.

[0016] Preferably, the inner position of the quick connection shell located at the rear end of the linear oil cylinder is provided with a quick connection shell support seat, the left and right ends of the quick connection shell support seat are fixedly connected with the left and right ends of the quick connection shell, the rear end of the cylinder body of the linear oil cylinder is fixedly connected with the front end of the quick connection shell support seat, the middle position of the quick connection shell support seat is provided with a front and rear penetrating positioning hole, and the rear end of the piston shaft of the linear oil cylinder is fixedly connected with the thrust sliding block through the positioning hole.

[0017] Preferably, the thrust sliding block is provided with a thrust sliding block fixed section and a thrust sliding block sliding section, the thrust sliding block fixed section is located at the front section of the thrust sliding block, the thrust sliding block sliding section is located at the rear section of the thrust sliding block, and the thrust sliding block fixed section is fixedly connected with the rear end of the piston shaft.

[0018] The lower end of the thrust sliding block sliding section is provided with a first sliding inclined surface, and the first sliding inclined surface is an inclined surface with a high front and a low rear.

[0019] Preferably, the baffle assembly is provided with a baffle seat and a baffle, the baffle seat is located at the upper section of the baffle assembly, the baffle is located at the lower section of the baffle assembly, the middle position of the upper end of the baffle seat is provided with a second sliding slope, and the second sliding slope is a slope with a high front and a low back.

[0020] The first sliding slope and the second sliding slope are used for sliding connection between the thrust sliding block and the baffle assembly.

[0021] The lower end of the baffle assembly is provided with a baffle positioning seat, the left and right ends of the baffle positioning seat are fixedly connected with the left and right ends of the quick connection shell, the middle of the baffle positioning seat is provided with a through hole penetrating in the longitudinal direction, and the baffle is located inside the through hole of the baffle positioning seat.

[0022] The upper end of the baffle positioning seat and the lower end of the baffle seat are provided with a spring, and the baffle positioning seat and the baffle seat are elastically supported by the spring.

[0023] Preferably, the baffle is provided with a thrust chamfer at the connection position between the front end and the lower end.

[0024] Preferably, the fixed connection section is provided with support holes penetrating in front and back at positions close to the left and right ends, the inner parts of the two support holes are provided with connecting shafts, the ends of the two connecting shafts, away from the support holes, are fixedly connected with the left and right ends of the quick connection shell support seat, and the fixed connection section and the connecting shafts are slidingly connected through the support holes.

[0025] Preferably, the outer circumferences of the two connecting shafts are provided with springs between the fixed connection section and the quick connection shell support seat, and the fixed connection section and the fixed connection section are elastically supported by the springs.

[0026] The beneficial effects of the utility model are that the spring outside the connecting shaft and the baffle assembly jointly constitute the locking device of the quick connector, the reliability of the connection between the excavator bucket and the quick connection assembly can be ensured, and related safety hazards can be avoided.

[0027] Specifically, for the spring outside the connecting shaft, when the first locking groove and the second locking groove are locked and fixed with the two fixed rods at the upper end of the excavator bucket, the spring is continuously in an open supporting state between the fixed connection section and the quick connection shell support seat. During normal operation of the excavator bucket, when the linear oil cylinder fails, the spring can maintain the clamping state of the quick connection assembly and the excavator bucket, so that the loosening of the quick connection assembly and the excavator bucket due to the failure of the linear oil cylinder is avoided, and even the falling of the excavator bucket is avoided.

[0028] For the baffle assembly, in the process of installing the bucket, the piston on the straight oil cylinder slides axially forward, drives the thrust sliding block to slide forward synchronously, under the mutual inclined surface connection of the first sliding inclined surface and the second sliding inclined surface, the baffle assembly moves downward, the baffle moves downward through the lower end surface of the baffle positioning seat and enters the inside of the second locking groove, can clamp the corresponding fixed rod on the bucket between the baffle and the second locking groove, realizes the locking of the fixed rod. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 is the perspective view of the utility model;

[0030] Figure 2 is another perspective view of the utility model;

[0031] Figure 3 is the front view of the utility model;

[0032] Figure 4 is the A-A sectional view in the utility model; Figure 3

[0033] Figure 5 is the perspective view of the quick connecting assembly in the utility model;

[0034] Figure 6 is the plan view of the quick connecting assembly in the utility model;

[0035] Figure 7 is the internal structure diagram of the quick connecting assembly in the utility model;

[0036] Figure 8 is the perspective view of the locking support assembly in the utility model;

[0037] Figure 9 is the perspective view of the baffle assembly in the utility model;

[0038] Figure 10 is the B enlarged view in the utility model; Figure 7

[0039] Figure 11 is the C enlarged view in the utility model; Figure 6

[0040] Figure 12 is the perspective view of the quick connecting shell support seat in the utility model;

[0041] Figure 13 is the perspective view of the thrust sliding block in the utility model.

[0042] Explanation of symbols in the drawing:

[0043] ​​​1. Connecting rod fixing seat; 101. Connecting rod fixing shaft; 102. Connecting rod fixing shaft support plate; 2. Swing oil cylinder; 202. First support seat plate; 203. Second support seat plate; 3. Quick connector assembly; 301. Quick connector housing; 30101. Quick connector housing support seat; 302. Locking support assembly; 30201. Fixed connection section; 30202. Sliding connection section; 30203. Locking section; 30204. Slide groove; 30205. First locking groove; 30206. Support hole; 30207. Groove; 303. Second locking groove; 304. Straight line oil cylinder; 305. Thrust block; 30501. Thrust block fixed section; 30502. Thrust block sliding section; 30503. First sliding slope; 306. Baffle assembly; 30601. Baffle seat; 30602. Baffle; 30603. Second sliding slope; 30604. Thrust chamfer; 307. Baffle positioning seat; 4. Spring; 5. Slide block; 6. Connecting shaft; 7. Positioning hole. DETAILED DESCRIPTION

[0044] The utility model will be further described below in combination with the embodiments.

[0045] Through Figures 1-13 It can be seen that the excavator swing type quick connector comprises a connecting rod fixing seat 1, a swing oil cylinder 2 and a quick connector assembly 3.

[0046] The connecting rod fixing seat 1 is provided with a connecting rod fixing shaft support plate 102, and the connecting rod fixing shaft support plate 102 is fixedly provided with a connecting rod fixing shaft 101, which is used to be connected with the connecting rod of the excavator.

[0047] The outer part of the shell of the swing oil cylinder 2 is fixedly provided with a first support seat plate 202, which is fixedly connected with the lower end of the connecting rod fixing shaft support plate 102, and the two sides of the main shaft of the swing oil cylinder 2 are fixedly provided with second support seat plates 203, which can be synchronously swung when the main shaft swings left and right.

[0048] The quick connector assembly 3 comprises a quick connector housing 301, which is a surrounding structure, so as to avoid the impact and damage of external force on the components in the quick connector housing 301 during operation.

[0049] The upper end of the quick connector housing 301 is fixedly connected with the second support seat plate 203, and the swing oil cylinder 2 can drive the quick connector assembly 3 to swing left and right.

[0050] The second locking groove 303 is provided at the bottom of the quick connection shell 301 near the rear end, and the opening direction of the second locking groove 303 faces the rear side. The inside of the quick connection shell 301 is provided with a locking support assembly 302, and the bottom of the locking support assembly 302 is provided with a first locking groove 30205. The opening direction of the first locking groove 30205 faces the front side. The first locking groove 30205 and the second locking groove 303 can be transversely locked with the two fixed rods at the upper end of the bucket.

[0051] For the specific structure of the push-pull device, in this patent, the locking support assembly 302 is provided with a linear oil cylinder 304 on one side. The front end of the piston shaft of the linear oil cylinder 304 is fixedly connected to the locking support assembly 302. When the piston shaft slides forward and backward, it can drive the locking support assembly 302 to slide forward and backward. The rear end of the piston shaft of the linear oil cylinder 304 is fixedly provided with a thrust slide block 305. The other end of the thrust slide block 305 is provided with a baffle assembly 306. When the piston shaft slides forward and backward, it can drive the thrust slide block 305 to slide forward and backward. When the thrust slide block 305 slides forward or backward, it can drive the baffle assembly 306 to slide downward or upward. When the baffle assembly 306 slides downward, the lower end of the baffle assembly 306 can slide into the inside of the second locking groove 303.

[0052] When installing the bucket, first, according to the placement angle of the bucket, adjust the angle of the quick connection assembly 3 through the swing oil cylinder 2. Second, control the piston shaft of the linear oil cylinder 304 to slide backward. At this time, the baffle assembly 306 slides upward synchronously. The bottom end of the baffle assembly 306 is located outside the second locking groove 303. The second locking groove 303 is clamped to one of the fixed rods of the bucket. Then, adjust the relative position of the first locking groove 30205 and the other fixed rod of the bucket. Control the piston shaft of the linear oil cylinder 304 to slide forward. When it slides to a certain position, the first locking groove 30205 is clamped and fixed with the other fixed rod of the bucket. The first locking groove 30205 and the second locking groove 303 are transversely locked with the two fixed rods at the upper end of the bucket. At this time, the lower end of the baffle assembly 306 has slid downward into the inside of the second locking groove 303. The corresponding fixed rod on the bucket is clamped between the lower end of the baffle assembly 306 and the second locking groove 303. Finally, the quick connection of the bucket is completed.

[0053] The linear oil cylinder 304 can be replaced by other push-pull devices with push-pull function, such as lead screw, electric push rod, air cylinder, etc.

[0054] The connecting rod fixed shaft support plates 102 are respectively located at the left and right sides of the connecting rod fixed seat 1. The number of the connecting rod fixed shafts 101 is multiple. The multiple connecting rod fixed shafts 101 are respectively located at the positions near the front and rear sides between the connecting rod fixed shaft support plates 102 on both sides. The multiple connecting rod fixed shafts 101 are respectively connected and fixed with the connecting rods of the excavator.

[0055] The linear oil cylinder 304 is located at the inner position of the quick connection shell 301, the locking support assembly 302 is located at the lower end position of the linear oil cylinder 304, the locking support assembly 302 is provided with a fixed connection section 30201, a sliding connection section 30202 and a locking section 30203, the fixed connection section 30201 is located at the upper section of the locking support assembly 302, the sliding connection section 30202 is located at the middle position of the locking support assembly 302, and the locking section 30203 is located at the lower section of the locking support assembly 302, the middle position of the fixed connection section 30201 is transversely fixedly connected with the front end position of the piston shaft on the linear oil cylinder 304, the left and right two side end portions of the sliding connection section 30202 are respectively provided with a sliding groove 30204, the inner end faces of the left and right two sides of the quick connection shell 301 are respectively fixedly provided with a sliding block 5, the two sliding blocks 5 are respectively slidably connected with the two sliding grooves 30204, so as to realize the sliding connection between the locking support assembly 302 and the sliding groove 30204, the middle position of the upper end portion of the sliding connection section 30202 is provided with a groove 30207, the groove 30207 and the outer shape of the cylinder body of the linear oil cylinder 304 correspond to each other, the groove 30207 is arranged above and below the lower end position of the cylinder body of the linear oil cylinder 304, and the first locking groove 30205 is formed between the lower end portion of the sliding connection section 30202 and the locking section 30203.

[0056] The piston shaft on the linear oil cylinder 304 can drive the locking support assembly 302 to slide forward and backward under the sliding connection of the sliding groove 30204 and the sliding block 5.

[0057] The inner position of the quick connection shell 301 located at the rear end position of the linear oil cylinder 304 is provided with a quick connection shell support seat 30101, the left and right two ends of the quick connection shell support seat 30101 are respectively fixedly connected with the left and right two ends of the quick connection shell 301, the rear end position of the cylinder body on the linear oil cylinder 304 is fixedly connected with the front end position of the quick connection shell support seat 30101, the middle position of the quick connection shell support seat 30101 is provided with a front and rear penetrating positioning hole 7, the rear end position of the piston shaft on the linear oil cylinder 304 is fixedly connected with the thrust sliding block 305 through the positioning hole 7, and the piston shaft can drive the thrust sliding block 305 to slide forward and backward synchronously while sliding forward and backward.

[0058] The thrust sliding block 305 is provided with a thrust sliding block fixed section 30501 and a thrust sliding block sliding section 30502, the thrust sliding block fixed section 30501 is located at the front section of the thrust sliding block 305, the thrust sliding block sliding section 30502 is located at the rear section of the thrust sliding block 305, the thrust sliding block fixed section 30501 is fixedly connected with the rear end position of the piston shaft, and the lower end portion of the thrust sliding block sliding section 30502 is provided with a first sliding inclined surface 30503, the first sliding inclined surface 30503 is an inclined surface with a high front and a low back.

[0059] The baffle assembly 306 is provided with a baffle seat 30601 and a baffle 30602. The baffle seat 30601 is located at the upper segment of the baffle assembly 306, and the baffle 30602 is located at the lower segment of the baffle assembly 306. The middle position of the upper end of the baffle seat 30601 is provided with a second sliding slope 30603, which is a slope with a high front and a low back. The push block 305 and the baffle assembly 306 are connected through the first sliding slope 30503 and the second sliding slope 30603.

[0060] The lower end of the baffle assembly 306 is provided with a baffle positioning seat 307. The left and right ends of the baffle positioning seat 307 are fixedly connected with the left and right ends of the quick-connection shell 301. The middle of the baffle positioning seat 307 is provided with a through hole penetrating in the longitudinal direction. The baffle 30602 is located inside the through hole on the baffle positioning seat 307. The upper end of the baffle positioning seat 307 and the lower end of the baffle seat 30601 are provided with a spring 4. The baffle positioning seat 307 and the baffle seat 30601 are supported by the spring 4.

[0061] During the installation of the bucket, the piston of the straight-line oil cylinder 304 slides forward, driving the push block 305 to slide forward synchronously. Under the mutual slope connection of the first sliding slope 30503 and the second sliding slope 30603, the baffle assembly 306 moves downward, and the baffle 30602 moves downward to pass through the lower end surface of the baffle positioning seat 307 and enters the inside of the second locking groove 303. The corresponding fixed rod on the bucket can be clamped between the baffle 30602 and the second locking groove 303, realizing the locking of the fixed rod. At this time, the spring 4 is in a compressed force state.

[0062] During the disassembly of the bucket, the piston of the straight-line oil cylinder 304 slides backward, driving the push block 305 to slide backward synchronously. Under the mutual slope connection of the first sliding slope 30503 and the second sliding slope 30603 and the support of the spring 4, the baffle assembly 306 moves upward, and the baffle 30602 is separated from the second locking groove 303.

[0063] The push force chamfer 30604 is arranged at the connection between the front end and the lower end of the baffle 30602. During the installation of the bucket, the quick connecting assembly 3 is inevitably misaligned with the bucket. The baffle assembly 306 is arranged to drive the locking and supporting assembly 302 to move towards the fixing rods on the bucket through the piston shaft on the straight oil cylinder 304. When the fixing rods are about to be contacted, the baffle assembly 306 is synchronously slid downwards to the inside of the second locking groove 303 to approach the upper end position. At this time, the push force chamfer 30604 on the baffle 30602 can push the side of the corresponding fixing rod from top to bottom, so as to correct the relative positions of the first locking groove 30205 and the second locking groove 303 and the two fixing rods on the upper end of the bucket, realize efficient and accurate clamping, and prevent problems such as that the bucket cannot be clamped in place due to the misalignment of the quick connecting assembly 3 and the bucket.

[0064] The fixing connecting section 30201 is provided with support holes 30206 penetrating front and back at positions close to the left and right ends. The inside of the two support holes 30206 is respectively provided with a connecting shaft 6. The two connecting shafts 6 are respectively fixedly connected with the left and right ends of the quick connecting shell supporting seat 30101 at the ends away from the support holes 30206. The fixing connecting section 30201 and the connecting shaft 6 are slidably connected through the support holes 30206, which can avoid the shaking of the locking and supporting assembly 302 when the piston shaft drives the locking and supporting assembly 302 to slide forward and backward, and further increase the stability of the forward and backward sliding of the locking and supporting assembly 302 and the accuracy of the connection between the locking and supporting assembly 302 and the fixing rods of the bucket.

[0065] The outer circumferences of the two connecting shafts 6 between the fixing connecting section 30201 and the quick connecting shell supporting seat 30101 are provided with springs 4. The fixing connecting section 30201 and the fixing connecting section 30201 are elastically supported through the springs 4. The springs 4 play an important role in the structure of the quick connecting assembly 3. After the first locking groove 30205 and the second locking groove 303 are locked and fixed with the two fixing rods on the upper end of the bucket, the springs 4 are continuously in the open supporting state between the fixing connecting section 30201 and the quick connecting shell supporting seat 30101. During the normal operation of the bucket, when the straight oil cylinder 304 fails, the springs 4 can maintain the clamping state of the quick connecting assembly 3 and the bucket, so as to avoid the loosening of the connection between the quick connecting assembly 3 and the bucket due to the failure of the straight oil cylinder 304, and even the falling of the bucket.

[0066] The springs 4 outside the connecting shaft 6 and the baffle assembly 306 together constitute the locking device of the quick connector, which can ensure the reliability of the connection between the bucket and the quick connecting assembly 3 and avoid causing related safety hazards.

[0067] The connection mode between the two ends of the piston shaft on the straight oil cylinder 304 and the fixed connection section 30201 and the thrust sliding block fixed section 30501, and between the rear end of the cylinder body of the straight oil cylinder 304 and the quick connection shell support seat 30101 can all adopt screw locking and fixing, which can realize quick disassembly and assembly of the straight oil cylinder 304 and is convenient and fast for maintenance.

[0068] The quick connector, which internally contains the straight oil cylinder 304 and related components in the quick connection shell 301, can avoid impact damage to the related components caused by external force during the operation of the excavator, and ensure the reliability of the structure of the quick connection assembly 3.

[0069] The operation steps of the quick connector will be described in detail below in terms of the specific structure and composition of the quick connector:

[0070] (1) According to the placement angle of the excavator bucket, the angle of the quick connection assembly 3 is adjusted through the swing oil cylinder 2.

[0071] (2) The piston shaft on the straight oil cylinder 304 is controlled to slide backward, and the piston shaft simultaneously drives the locking support assembly 302 and the thrust sliding block 305 to slide backward synchronously. While the thrust sliding block 305 slides backward, the baffle assembly 306 moves upward under the mutual inclined surface connection of the first sliding inclined surface 30503 and the second sliding inclined surface 30603 and the supporting action of the spring 4, and the baffle 30602 is separated from the second locking groove 303.

[0072] (3) The second locking groove 303 is clamped to one of the excavator bucket fixing rods on the excavator bucket, then the relative position of the first locking groove 30205 and the other excavator bucket fixing rod is adjusted, the piston shaft on the straight oil cylinder 304 is controlled to slide forward, and the piston shaft simultaneously drives the locking support assembly 302 and the thrust sliding block 305 to slide forward synchronously. While the thrust sliding block 305 slides forward, the baffle assembly 306 moves downward under the mutual inclined surface connection of the first sliding inclined surface 30503 and the second sliding inclined surface 30603, the baffle 30602 moves downward through the lower end surface of the baffle positioning seat 307 and enters the interior of the second locking groove 303, and the piston shaft continuously slides forward. At this time, the first locking groove 30205 will touch the corresponding excavator bucket fixing rod, the baffle 30602 continues to slide downward, the position of the thrust chamfer 30604 on the baffle 30602 pushes the side surface of the corresponding excavator bucket fixing rod from top to bottom, adjusts the relative position of the first locking groove 30205 and the second locking groove 303 and the two excavator bucket fixing rods on the excavator bucket, and as the piston shaft continuously slides forward, the first locking groove 30205 and the second locking groove 303 realize outward locking on the two fixing rods on the excavator bucket, respectively.

[0073] (4) At this time, the spring 4 is continuously in the open support state between the fixed connection section 30201 and the quick connection shell support seat 30101, and when the linear oil cylinder 304 fails during the normal operation of the bucket, the spring 4 outside the connecting shaft 6 is continuously in the open support state between the fixed connection section 30201 and the quick connection shell support seat 30101, so that the quick connection assembly 3 and the bucket continuously maintain the mutual clamping state, the baffle assembly 306 clamps the fixed rod on the corresponding bucket between the baffle 30602 and the second locking groove 303, realizes the locking of the fixed rod, and finally completes the quick connection of the bucket.

[0074] The above is only a specific embodiment of the present application, and cannot limit the scope of the present application. The replacement of equivalent components or equivalent changes and modifications made within the scope of the present application shall still fall within the scope of the present application.

Claims

1. A swing-type quick connector for excavators, characterized by: Includes connecting rod retainer, swing cylinder, and quick-connect assembly; The connecting rod mounting base is provided with a connecting rod fixing shaft support plate, and a connecting rod fixing shaft is fixedly mounted on the connecting rod fixing shaft support plate. The connecting rod fixing shaft is used to connect with the connecting rod of the excavator. A first support plate is fixedly provided on the outer surface of the outer shell of the swing cylinder. The first support plate is fixedly connected to the lower end of the connecting rod fixed shaft support plate. Second support plates are fixedly provided on both sides of the main shaft of the swing cylinder. The quick-connect assembly includes a quick-connect housing, the upper end of which is fixedly connected to the second support plate, and the swing cylinder can drive the quick-connect assembly to swing left and right. The quick-connect housing has a second locking groove at the bottom near the rear end, with the opening of the second locking groove facing the rear. The quick-connect housing has a locking support assembly inside, with a first locking groove at the bottom of the locking support assembly, and the opening of the first locking groove facing the front. The locking support assembly is provided with a push-pull device on one side. The front end of the push-pull device is fixedly connected to the locking support assembly. The push-pull device can drive the locking support assembly to slide back and forth. The push-pull device is fixedly provided with a push slider at the rear end, and a baffle assembly is provided at the other end of the push slider. The push-pull device can drive the push slider to slide back and forth. While the push slider slides forward or backward, it can drive the baffle assembly to slide downward or upward. When the baffle assembly slides downward, the lower part of the baffle assembly can slide into the interior of the second locking groove.

2. The swing-type quick connector for excavators according to claim 1, characterized by: The connecting rod fixing shaft support plates are located on the left and right sides of the connecting rod fixing seat, and there are multiple connecting rod fixing shafts, which are located between the connecting rod fixing shaft support plates on both sides near the front and rear sides.

3. The swing-type quick connector for excavators according to claim 2, characterized by: The push-pull device is a linear hydraulic cylinder, which is located inside the quick-connect housing. The locking support assembly is located at the lower end of the linear hydraulic cylinder. The locking support assembly is provided with a fixed connecting section, a sliding connecting section, and a locking section. The fixed connecting section is located at the upper section of the locking support assembly, the sliding connecting section is located at the middle section of the locking support assembly, and the locking section is located at the lower section of the locking support assembly. The middle position of the fixed connection section is laterally fixedly connected to the front end position of the piston shaft on the linear cylinder. The left and right ends of the sliding connection section are respectively provided with sliding grooves, and the inner end faces of the left and right sides of the quick-connect housing are respectively fixed with sliders. The two sliders are respectively slidably connected to the two sliding grooves, thereby realizing the sliding connection between the locking support assembly and the sliding grooves. A first locking groove is formed between the lower end of the locking section and the sliding connection section.

4. The swing-type quick connector for excavators according to claim 3, characterized by: The inside of the quick connection shell is provided with a quick connection shell support seat at the rear end position of the straight oil cylinder, the left and right ends of the quick connection shell support seat are fixedly connected with the left and right ends of the quick connection shell respectively, the rear end position of the cylinder body on the straight oil cylinder is fixedly connected with the front end position of the quick connection shell support seat, the middle position of the quick connection shell support seat is provided with a front and rear penetrating positioning hole, and the rear end position of the piston shaft on the straight oil cylinder is fixedly connected with the thrust sliding block through the positioning hole.

5. The swing-type quick connector for excavators according to claim 4, characterized by: The thrust sliding block is provided with a thrust sliding block fixed section and a thrust sliding block sliding section, the thrust sliding block fixed section is located at the front section position of the thrust sliding block, the thrust sliding block sliding section is located at the rear section position of the thrust sliding block, and the thrust sliding block fixed section is fixedly connected with the rear end position of the piston shaft. The lower end of the thrust sliding block sliding section is provided with a first sliding slope, and the first sliding slope is a slope with a high front and a low back.

6. The swing-type quick connector for excavators according to claim 5, characterized by: The baffle assembly is provided with a baffle seat and a baffle, the baffle seat is located at the upper section position of the baffle assembly, the baffle is located at the lower section position of the baffle assembly, the middle position of the upper end of the baffle seat is provided with a second sliding slope, and the second sliding slope is a slope with a high front and a low back. The thrust sliding block and the baffle assembly are slidably connected through the first sliding slope and the second sliding slope. The lower end position of the baffle assembly is provided with a baffle positioning seat, the left and right ends of the baffle positioning seat are fixedly connected with the left and right ends of the quick connection shell respectively, the middle of the baffle positioning seat is provided with a longitudinal through hole, and the baffle is located in the through hole of the baffle positioning seat. The upper end of the baffle positioning seat and the lower end of the baffle seat are provided with a spring, and the baffle positioning seat and the baffle seat are elastically supported by the spring.

7. The swing-type quick connector for excavators according to claim 6, characterized by: The baffle is provided with a thrust chamfer at the connection between the front end and the lower end.

8. The swing-type quick connector for excavators according to claim 3, characterized by: The fixed connection section is provided with a front and rear penetrating support hole near the left and right ends, the inner parts of the two support holes are respectively provided with a connecting shaft, one end of the connecting shaft away from the support hole is fixedly connected with the left and right ends of the quick connection shell support seat respectively, and the fixed connection section and the connecting shaft are slidably connected through the support hole.

9. The swing-type quick connector for excavators according to claim 8, characterized by: The outer circumferences of the two connecting shafts between the fixed connection section and the quick connection shell support seat are provided with a spring, and the fixed connection section and the fixed connection section are elastically supported by the spring.

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