Quick connector lower assembly for prying trolley

Abstract

The utility model provides a quick connector lower component for a prying trolley, which comprises lower component side seat plates, a lower component rear seat plate and a lower component lower seat plate, a second locking shaft is arranged between the two lower component side seat plates and close to the front end, and a through hole is arranged on the lower component rear seat plate. An oil way block is fixedly arranged at the position, close to the middle, between the two lower assembly side face base plates, a penetrating oil way is arranged on the oil way block, and a penetrating receding hole is formed in the lower assembly lower base plate. According to the quick connector lower assembly for the prying trolley, the hydraulic pipeline is arranged in the quick connector assembly, the hydraulic pipeline is protected, in the operation process, the hydraulic pipeline cannot be impacted by external force and cannot be damaged, the prying trolley can stably operate for a long time, and the service life is prolonged. The quick replacement device can be widely applied to quick replacement of the breaking hammer on the prying trolley.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of connectors, in particular to a kind of quick connector lower assembly for prying trolley. BACKGROUND

[0002] Prying trolley is a kind of multifunctional equipment specially designed for metal mines and various underground engineering, mainly used for prying operation in roadway, tunnel and tunnel.

[0003] Different types of hydraulic breakers are usually needed for different working conditions, and the traditional way of replacing hydraulic breakers is usually assisted by manual disassembly, which is time-consuming, labor-intensive, low in work efficiency and high in risk coefficient.

[0004] Most importantly, the hydraulic lines on most existing prying trolleys are exposed outside the breakers, and during operation, the hydraulic lines are easily impacted by external forces, causing damage and affecting the normal operation of the prying trolley.

[0005] Therefore, there is an urgent need for a quick connector for prying trolley, which, in addition to achieving quick disassembly of the breaker, should also have the function of protecting the hydraulic line to avoid external leakage. SUMMARY

[0006] The utility model provides a kind of quick connector lower assembly for prying trolley to solve the above technical problems, which can realize the quick replacement of hydraulic breaker, save time and effort, improve work efficiency, greatly reduce the risk coefficient, and protect the hydraulic line by setting it inside the quick connector assembly.

[0007] Therefore, the technical scheme of the utility model is a kind of quick connector lower assembly for prying trolley, which includes lower assembly side seat plate, lower assembly rear seat plate and lower assembly lower seat plate.

[0008] The second locking shaft is arranged between the two lower assembly side seat plates near the front end.

[0009] The hole is arranged on the lower assembly rear seat plate.

[0010] The oil passage block is fixedly arranged between the two lower assembly side seat plates near the middle, and the oil passage is arranged on the oil passage block.

[0011] The avoiding hole is arranged on the lower assembly lower seat plate.

[0012] Preferably, oil passage block support seat plates are fixedly arranged at positions close to the bottom end between the two lower assembly side seat plates, and the oil passage block is fixedly connected to the upper end of the oil passage block support seat plate.

[0013] Preferably, the number of oil passage block support seat plates is two, and the two oil passage block support seat plates are arranged at front and rear positions between the two lower assembly side seat plates, and the front and rear ends of the oil passage block are fixedly connected to the two oil passage block support seat plates, respectively.

[0014] Preferably, the number of holes in the rear seat plate of the lower assembly is two, and the holes are arranged in the left-right direction.

[0015] Preferably, auxiliary operation holes are arranged at positions on the two lower assembly side seat plates on both sides of the bottom end of the oil passage block.

[0016] Preferably, the number of oil passages on the oil passage block is five.

[0017] The utility model discloses beneficial effects are:

[0018] 1. Since the oil passage block is arranged at the internal position between the two lower assembly side seat plates, the oil passage block can be protected, and the hydraulic oil pipe connected to the two ends of the oil passage block can also be protected, preventing impact damage to the oil passage block and the hydraulic oil pipe caused by external force during operation.

[0019] 2. By arranging auxiliary operation holes at positions on the two lower assembly side seat plates on both sides of the bottom end of the oil passage block, an assembly personnel can pass through the auxiliary operation holes to install the hydraulic oil pipe, which is simple and fast, saves working time, and is convenient for maintenance. At the same time, the auxiliary operation holes can be used to monitor whether there is oil leakage at the oil pipe interface in real time.

[0020] 3. Generally, only two to three oil pipes need to be connected when the pry trolley is normally running. By arranging the number of oil passages on the oil passage block, the remaining oil passages can be used as standby oil passages, which has obvious effects in actual operation.

[0021] Firstly, when one of the oil passages fails, the current most common solution is to replace the oil passage block. However, since the pry trolley usually operates in harsh environments, it is difficult to replace the oil passage block on site, and the replacement time is long, which delays the normal work progress. Therefore, by arranging standby oil passages on the oil passage block, the oil pipe can be connected to the standby oil passage, without the need to disassemble the oil passage block, which is convenient and fast, shortens the operation time, and is high in work efficiency.

[0022] Furthermore, when the prying trolley needs to be equipped with other hydraulic drive devices, the oil pipe of the device can be directly connected to the backup oil circuit without having to replace the multi-line oil circuit block again. It has a wide range of applications, few limitations, and saves operation time. Attached Figure Description

[0023] Figure 1 This is a three-dimensional view of the assembled version of this utility model;

[0024] Figure 2 This is a perspective view of the components on the connector of this utility model;

[0025] Figure 3 This is a structural diagram of the internal structure of the connector components in this utility model;

[0026] Figure 4 This is another view of the internal structure of the connector component in this utility model;

[0027] Figure 5 This is a left view of the connector component in this utility model;

[0028] Figure 6 This is a utility model Figure 5 Sectional view of AA;

[0029] Figure 7 This is a perspective view of the baffle assembly in this utility model;

[0030] Figure 8 This is a perspective view of the thrust slider in this utility model;

[0031] Figure 9 This is a perspective view of the lower component of the connector in this utility model;

[0032] Figure 10 This is a top-view perspective view of the lower component of the connector in this utility model;

[0033] Figure 11 This is a utility model Figure 3 Enlarged view at point B in the middle;

[0034] Figure 12 This is a utility model Figure 4 Enlarged view of point C in the middle.

[0035] Explanation of symbols in the diagram:

[0036] 1. connector upper assembly; 101. upper assembly side seat plate 101; 10101. first locking groove; 102. first locking shaft; 103. upper assembly rear seat plate; 104. upper assembly front seat plate; 2. connector lower assembly; 201. lower assembly side seat plate; 20101. auxiliary operation hole; 202. lower assembly rear seat plate; 203. lower assembly lower seat plate; 20301. avoiding hole; 204. second locking shaft; 3. oil cylinder assembly; 301. valve block; 302. linear oil cylinder; 4. upper assembly side seat plate 101 connecting seat; 5. thrust slider; 501. thrust slider fixed section; 502. thrust slider sliding section; 503. first sliding slope; 6. limiting baffle assembly; 601. baffle seat; 602. baffle; 603. second sliding slope; 604. thrust chamfer; 7. limiting pin shaft fixing plate; 9. limiting pin shaft; 10. baffle positioning seat; 11. reinforcing seat plate; 1101. second locking groove; 12. reinforcing support plate; 13. spring; 14. sliding support plate; 15. groove plate; 16. oil way block; 1601. oil way; 17. oil way block support seat plate. DETAILED DESCRIPTION

[0037] The utility model will be further described below in combination with the embodiments.

[0038] Through Figures 1-12 It can be seen that the split type quick connector assembly for the pry mop trolley comprises a connector upper assembly 1 and a connector lower assembly 2, the lower section of the connector upper assembly 1 can be inserted into the inside of the connector lower assembly 2, the connector upper assembly 1 comprises an upper assembly side seat plate 101, an upper assembly rear seat plate 103 and an upper assembly front seat plate 104, the upper assembly side seat plate 101 is respectively located at the left and right sides of the connector upper assembly 1, the upper assembly rear seat plate 103 is located at the rear side of the connector upper assembly 1, and the upper assembly front seat plate 104 is located at the front side of the connector upper assembly 1; first locking shafts 102 are arranged at the positions close to the upper part between the two upper assembly side seat plates 101, the number of the first locking shafts 102 is two, and the two first locking shafts 102 are arranged front and back; in actual assembly, the two first locking shafts 102 are used to be fixedly connected with the front end of the large arm of the pry mop trolley.

[0039] First locking grooves 10101 are arranged at the positions close to the bottom of the front end of the two upper assembly side seat plates 101, the opening direction of the first locking grooves 10101 is towards the front end, a baffle positioning seat 10 is fixedly arranged at the position of the upper end between the two upper assembly side seat plates 101, the baffle positioning seat 10 is provided with a penetrating hole, and the baffle positioning seat 10 has the functions of fixing and supporting the two upper assembly side seat plates 101 to some extent and increasing the structural stability of the connector upper assembly 1.

[0040] The upper assembly rear seat plate 103 is provided with a through hole, and the position close to the lower end between the two upper assembly side seat plates 101 is provided with a push-pull device. The rear end of the push-pull device is fixedly provided with a limiting pin shaft 9, and the limiting pin shaft 9 is located in the hole in the upper assembly rear seat plate 103. The push-pull device can drive the limiting pin shaft 9 to move forward and backward in the hole. The push-pull device can be selected from devices with forward and backward movement functions such as linear cylinders, linear oil cylinders, linear screws, and rack rods.

[0041] The front end of the push-pull device is fixedly provided with a thrust sliding block 5, the lower end of the thrust sliding block 5 is provided with a limiting baffle assembly 6, a baffle positioning seat 10 is located at the lower end position of the limiting baffle assembly 6, and the lower end position of the limiting baffle assembly 6 is located in the hole in the baffle positioning seat 10. The push-pull device can drive the thrust sliding block 5 to move forward and backward, and at the same time, the thrust sliding block 5 can drive the limiting baffle assembly 6 to move up and down. When the limiting baffle assembly 6 moves up and down, the lower segment of the limiting baffle assembly 6 moves up and down in the hole in the baffle positioning seat 10. When the lower segment of the limiting baffle assembly 6 moves downward, it can enter the position inside the first locking groove 10101.

[0042] The connector lower assembly 2 includes a lower assembly side seat plate 201, a lower assembly rear seat plate 202, and a lower assembly lower seat plate 203. The lower assembly side seat plate 201 is located at the left and right positions of the connector lower assembly 2, the lower assembly rear seat plate 202 is located at the rear end position of the connector lower assembly 2, and the lower assembly lower seat plate 203 is located at the lower end position of the connector lower assembly 2. The position close to the front end between the two lower assembly side seat plates 201 is provided with a second locking shaft 204, the lower assembly rear seat plate 202 is provided with a through hole, and the position close to the middle between the two lower assembly side seat plates 201 is fixedly provided with an oil way block 16. The oil way block 16 is provided with a through oil way 1601, the hydraulic oil pipe on the large arm communicates with the hydraulic oil pipe on the breaking hammer through the through oil way 1601 on the oil way block 16, and the hydraulic drive operation is realized.

[0043] Moreover, since the oil way block 16 is arranged at the position between the two lower assembly side seat plates 201, on the one hand, it can protect the oil way block 16, and on the other hand, it can also protect the hydraulic oil pipes connected at both ends of the oil way block 16, preventing external force from causing impact damage to the oil way block 16 and the hydraulic oil pipes during operation.

[0044] As can be seen from the accompanying Figure 10 It can be seen that the number of oil ways 1601 is 5. Usually, only 2-3 oil pipes need to be connected during normal operation of the prying platform car, and the remaining oil ways 1601 serve as standby oil ways. The standby oil way has obvious effects in actual operation, as follows:

[0045] 1. When one of the oil paths fails, the current most solution is to replace the oil path block 16, but since the pry and mop trolley usually operates in harsh environments, it is difficult to replace the oil path block 16 on site, and it takes a long time to replace, which delays the normal work progress, therefore, by providing a standby oil path on the oil path block 16, only the oil pipe needs to be connected to the standby oil path, without the need to disassemble the oil path block 16, the operation is convenient and fast, the operation time is shortened, and the work efficiency is high.

[0046] 2. When the pry and mop trolley needs to be equipped with other hydraulic drive devices, the oil pipe of the device can be directly connected to the standby oil path, without the need to replace the multi-oil path oil path block 16 again, the application range is wide, the limitation is small, and the operation time is saved.

[0047] The lower assembly lower seat plate 203 is provided with a through avoiding hole 20301, in actual assembly, the lower assembly lower seat plate 203 is used to be fixedly connected with the rear end of the breaking hammer, the lower assembly lower seat plate 203 is provided with a through avoiding hole 20301, the avoiding hole 20301 is mainly aimed at protecting the hydraulic oil pipe on one side of the breaking hammer, when the hydraulic oil pipe is installed, the hydraulic oil pipe on one side of the breaking hammer can pass through the inside of the avoiding hole 20301, the hydraulic oil pipe is blocked in the inside of the lower assembly lower seat plate 203, the hydraulic oil pipe is prevented from leaking, and the hydraulic oil pipe is protected from impact damage caused by external force during operation.

[0048] When the lower section of the connector upper assembly 1 is inserted into the inside of the connector lower assembly 2, the two first locking grooves 10101 can be attached to the second locking shaft 204, after attachment, when the push-pull device moves backward, the limiting pin shaft 9 can enter the inside of the hole on the lower assembly rear seat plate 202, limiting and locking the rear end position of the connector upper assembly 1 and the connector lower assembly 2, while the push-pull device moves backward, the thrust sliding block 5 moves backward, while the thrust sliding block 5 moves backward, the limiting baffle assembly 6 is driven to move downward, when the limiting baffle assembly 6 moves downward, the lower section of the limiting baffle assembly 6 can enter the position inside the first locking groove 10101 in the longitudinal direction, limiting and locking the second locking shaft 204, limiting and locking the front end position of the connector upper assembly 1 and the connector lower assembly 2, finally, the connector upper assembly 1 and the connector lower assembly 2 are quickly locked and fixed.

[0049] In order to further ensure the stability of the push-pull device structure, the following embodiments are adopted:

[0050] In this embodiment, the push-pull device is an oil cylinder assembly 3, which includes a valve block 301 and a linear oil cylinder 302. The rear end of the linear oil cylinder 302 is fixedly provided with a limit pin shaft fixing plate 7, and the rear end of the limit pin shaft fixing plate 7 is fixedly connected with the front end of a limit pin shaft 9. When the linear oil cylinder 302 moves forward and backward, the limit pin shaft 9 moves forward and backward in the hole of the upper assembly rear seat plate 103, thereby realizing the quick locking of the rear end positions of the connector upper assembly 1 and the connector lower assembly 2.

[0051] According to the specific structure of the thrust block 5, the thrust block 5 is provided with a thrust block fixed segment 501 and a thrust block sliding segment 502. The thrust block fixed segment 501 is located at the rear position of the thrust block 5, and the thrust block sliding segment 502 is located at the front position of the thrust block 5. The thrust block fixed segment 501 is fixedly connected with the front end of the linear oil cylinder 302. The lower end of the thrust block sliding segment 502 is provided with a first sliding inclined surface 503, which is a front-low and rear-high inclined surface. The limit baffle assembly 6 is provided with a baffle seat 601 and a baffle 602. The baffle seat 601 is located at the upper position of the limit baffle assembly 6, and the baffle 602 is located at the lower position of the limit baffle assembly 6. The upper end of the baffle seat 601 is provided with a second sliding inclined surface 603, which is a front-low and rear-high inclined surface. The baffle 602 is located in the hole of the baffle positioning seat 10. The thrust block 5 and the limit baffle assembly 6 are connected through the first sliding inclined surface 503 and the second sliding inclined surface 603.

[0052] The baffle positioning seat 10 and the baffle seat 601 are provided with a spring 13 therebetween, and the baffle positioning seat 10 and the baffle seat 601 are supported by the spring 13.

[0053] During the installation of the breaking hammer, the piston of the linear oil cylinder 302 moves backward, driving the thrust block 5 to slide backward. Under the mutual inclined surface fitting of the first sliding inclined surface 503 and the second sliding inclined surface 603, the limit baffle assembly 6 moves downward, and the baffle 602 moves downward through the lower end surface of the baffle positioning seat 10 and enters the position inside the first locking groove 10101 relative to the longitudinal direction. The second locking shaft 204 in the first locking groove 10101 is locked at the rear end of the first locking groove 10101, thereby realizing the quick locking of the front end positions of the connector upper assembly 1 and the connector lower assembly 2. At this time, the spring 13 is in a compressed state.

[0054] When the piston of the linear oil cylinder 302 moves backward, the limit pin shaft 9 enters the hole of the lower assembly rear seat plate 202, thereby realizing the quick locking of the rear end positions of the connector upper assembly 1 and the connector lower assembly 2. Finally, the overall locking of the connector upper assembly 1 and the connector lower assembly 2 is completed.

[0055] In the process of breaking hammer disassembly, the piston on the linear oil cylinder 302 moves axially forward, driving the thrust sliding block 305 to move forward synchronously. Under the mutual inclined surface fitting structure of the first sliding inclined surface 503 and the second sliding inclined surface 603 and the supporting action of the spring 13, the limiting baffle assembly 6 moves upward, and the baffle 602 is separated from the position relative to the longitudinal interior of the first locking groove 10101, realizing the quick disengagement of the front end position of the connector upper assembly 1 and the connector lower assembly 2.

[0056] At the same time, the piston on the linear oil cylinder 302 moves axially forward, driving the limiting pin shaft 9 to move forward, and separating from the interior of the hole on the lower assembly rear plate 202, realizing the quick disengagement of the rear end position of the connector upper assembly 1 and the connector lower assembly 2. Finally, the overall disassembly of the connector upper assembly 1 and the connector lower assembly 2 is completed, and then a breaking hammer of appropriate specification is selected for reinstallation.

[0057] In order to improve the stability of the linear oil cylinder 302 driving the limiting pin shaft 9 and the thrust sliding block 5 moving forward and backward, the following embodiments are adopted:

[0058] In this embodiment, the upper assembly side seat plate connecting seat 4 is fixed between the two upper assembly side seat plates 101, and the upper assembly side seat plate connecting seat 4 is fixedly connected with the shell of the linear oil cylinder 302, forming stable support for the linear oil cylinder 302. In addition, the two sides of the limiting pin shaft fixing plate 7 are fixedly provided with sliding support plates 14, and the inner sides of the two upper assembly side seat plates 101101 are respectively provided with groove plates 15. The sliding support plates 14 are located inside the groove plates 15 and can slide forward and backward inside the groove plates 15, which can increase the stability of the synchronous movement of the linear oil cylinder 302, the sliding support plates 14 and the limiting pin shaft 9, and avoid shaking and displacement.

[0059] The two sides of the limiting pin shaft fixing plate 7 are fixedly provided with sliding support plates 14, and the inner sides of the two upper assembly side seat plates 101 are respectively provided with groove plates 15. The sliding support plates 14 are located inside the groove plates 15 and can slide forward and backward inside the groove plates 15.

[0060] In order to improve the efficiency of quick locking of the front end position of the connector upper assembly 1 and the connector lower assembly 2, the following embodiments are adopted:

[0061] In this embodiment, the thrust chamfer 604 is arranged at the connection between the rear end and the lower end of the baffle plate 602. In actual assembly, after the first locking groove 10101 and the second locking shaft 204 are fitted, it is inevitable that they will be misaligned. By arranging the thrust chamfer 604 on the baffle plate 602, if the second locking shaft 204 is misaligned when the baffle plate 602 moves downward, the position of the thrust chamfer 604 on the baffle plate 602 can push the front section of the second locking shaft 204 downward, quickly correcting the position of the second locking shaft 204, and finally locking and fixing the second locking shaft 204.

[0062] Oil passage block support seat plates 17 are fixedly arranged at positions close to the bottom end between the two lower assembly side seat plates 201, and the oil passage blocks 16 are arranged at the upper end positions of the oil passage block support seat plates 17 and fixedly connected with the oil passage block support seat plates 17. The oil passage block support seat plates 17 can increase the connection stiffness of the overall structure of the connector lower assembly 2 and effectively support the oil passage blocks 16, facilitating the assembly of the hydraulic oil pipes on the oil passage blocks 16.

[0063] In order to increase the convenience of assembling the hydraulic oil pipes, the number of the oil passage block support seat plates 17 is two, and the two oil passage block support seat plates 17 are arranged at the front and rear positions between the two lower assembly side seat plates 201, respectively. The front and rear end positions of the oil passage blocks 16 are fixedly connected with the two oil passage block support seat plates 17, respectively.

[0064] In order to increase the stability of the locking of the connector upper assembly 1 and the connector lower assembly 2, the following embodiments are adopted:

[0065] In this embodiment, the number of the limiting pin shafts 9, the holes in the lower assembly rear seat plate 202, and the holes in the upper assembly rear seat plate 103 is two, and they are all arranged along the left-right direction, which can prevent the shaking gap of the connector upper assembly 1 and the connector lower assembly 2 after being locked. If the shaking gap occurs, it will directly cause the connector upper assembly 1 or the connector lower assembly 2 to be damaged to different degrees, reducing the operation accuracy and service life of the connector assembly, further increasing the reliability of the locking of the two, and ensuring the stability of the long-time crushing operation.

[0066] In order to further increase the stability of the structure application of the connector upper assembly 1, the following embodiments are adopted:

[0067] In this embodiment, a reinforcing support plate 12 is fixedly arranged between the two first locking grooves 10101 at the lower end adjacent positions between the two upper assembly side seat plates 101. The reinforcing support plate 12 can effectively support the periphery of the two first locking grooves 10101, form a whole force structure between the two upper assembly side seat plates 101101, and avoid the stress deformation of the single structure of the upper assembly side seat plate 101101.

[0068] In order to increase the convenience of hydraulic oil pipe installation, the following embodiment is adopted:

[0069] In this embodiment, two auxiliary operation holes 20101 are arranged on both sides of the bottom end of the oil passage block 16 on the two lower assembly side seat plates 201, and the assembly personnel can pass through the auxiliary operation holes 20101 to perform the installation work of the hydraulic oil pipe, which is simple and fast, saves working time, and is convenient for maintenance. At the same time, through the auxiliary operation hole 20101, it can monitor in real time whether there is oil leakage at the oil pipe interface.

[0070] The inner side of the two upper assembly side seat plates 101 is fixedly provided with a reinforcing seat plate 11 near the front end, and the second locking groove 1101 is arranged on the first locking groove 10101 of the two reinforcing seat plates 11. After the connector upper assembly 1 is connected with the connector lower assembly 2, the second locking groove 1101 and the first locking groove 10101 simultaneously limit and support the second locking shaft 204, further increasing the firmness of the front end position locking of the connector upper assembly 1 and the connector lower assembly 2.

[0071] The oil cylinder assembly 3 is located between the two upper assembly side seat plates 101 near the left side, and the oil passage block 16 is located between the two lower assembly side seat plates 201 near the right side after the oil passage block 16 is fixedly connected with the oil passage block support seat plate 17. After the connector upper assembly 1 and the connector lower assembly 2 are locked and fixed, the oil cylinder assembly 3 and the oil passage block 16 are staggered left and right, which can reduce the overall volume of the quick connector assembly on the one hand, form a compact structure, and can be used in different working conditions. Wide application range, less limitation, on the other hand, can ensure that the two will not cause damage by knocking, prolong the service life.

[0072] In order to increase the overall rigidity and the use stability of the overall structure of the quick connector assembly, the dimensions of important parts are strengthened, among which the thickness of the sliding support plate 14 is 10mm±1mm, the outer diameter of the first locking shaft 102 is 40mm±2mm, the thickness of the upper assembly side seat plate 101, the lower assembly side seat plate 201, the reinforcing seat plate 11 and the lower assembly lower seat plate 203 is 15mm±1mm, the outer diameter of the second locking shaft 204 is 30mm±2mm, and the outer diameter of the limiting pin shaft 9 is 35mm±2mm.

[0073] The assembly method of the split type quick connector assembly for the pry hair trolley comprises the following steps:

[0074] Step (1): The front end of the large arm of the pry hair trolley is locked and fixed with the two first locking shafts 102 on the connector upper assembly 1.

[0075] Step (2): the rear end of the breaking hammer is fixedly connected with the lower seat plate 203 of the lower assembly, and meanwhile, the oil pipe on the breaking hammer is passed from below to above through the avoiding hole 20301 on the lower seat plate 203 of the lower assembly, and the oil pipe is communicated with the lower end oil hole of the oil passage 1601 on the oil passage block 16.

[0076] Step (3): the front section position of the connector upper assembly 1 is inserted into the inside of the connector lower assembly 2 at the rear end of the second locking shaft 204 by lowering the front section position of the connector upper assembly 1 through the operation of the large arm, and then the two second locking grooves 1101 and the first locking groove 10101 are mutually attached to the second locking shaft 204.

[0077] Step (3): the rear section position of the connector upper assembly 1 is inserted into the inside of the rear section of the connector lower assembly 2 by lowering the rear section position of the connector upper assembly 1 through the continuous operation of the large arm, at this time, the limiting pin shaft 9 is located at the front end outside position of the rear seat plate 202 of the lower assembly, the limiting pin shaft 9 is symmetrically arranged in front of and behind the hole on the rear seat plate 202 of the lower assembly, at this time, the limiting pin shaft 9 can be moved forward to be inserted into the inside of the hole on the rear seat plate 202 of the lower assembly.

[0078] Step (4): the piston shaft on the straight oil cylinder 302 is moved backward to push the limiting pin shaft 9 to move backward and enter the inside of the hole on the rear seat plate 202 of the lower assembly, so as to realize the quick locking and fixing of the rear section position of the connector upper assembly 1 and the connector lower assembly 2, at the same time, the piston shaft on the straight oil cylinder 302 is moved backward to push the thrust sliding block 5 to slide backward, under the mutual inclined surface attachment of the first sliding inclined surface 503 and the second sliding inclined surface 603, the limiting baffle assembly 6 is moved downward, the baffle 602 is moved downward to pass through the lower end surface of the baffle positioning seat 10 and enter the position inside the first locking groove 10101, the second locking shaft 204 inside the first locking groove 10101 is locked at the rear end position of the first locking groove 10101, so as to realize the quick locking and fixing of the front section position of the connector upper assembly 1 and the connector lower assembly 2, at this time, the spring 13 is in the compressed stress state.

[0079] Step (5): the oil pipe on the large arm is communicated with the upper end oil hole of the oil passage 1601 on the oil passage block 16, finally, the overall assembly of the connector upper assembly 1 and the connector lower assembly 2 is completed, and the quick locking and fixing of the connector upper assembly 1 and the connector lower assembly 2 are realized.

[0080] The above description is only a specific embodiment of the utility model, and cannot limit the scope of the utility model implementation, so the replacement of equivalent components or equivalent changes and modifications made within the scope of the utility model patent protection should still belong to the scope covered by the utility model claims.

Claims

1. A quick connector lower assembly for a skid trolley, characterized in that: It includes a lower component side seat plate, a lower component rear seat plate, and a lower component bottom seat plate. The lower component side seat plates are located on the left and right sides of the lower connector component, respectively. The lower component rear seat plate is located at the rear end of the lower connector component, and the lower component bottom seat plate is located at the lower end of the lower connector component. A second locking shaft is provided between the two lower component side plates near the front end; The lower component's rear seat plate has a through hole; An oil passage block is fixedly provided near the middle position between the two lower component side seat plates, and the oil passage block is provided with a through oil passage; The lower component's lower base plate is provided with a through clearance hole.

2. The lower assembly of the quick connector for the skid trolley according to claim 1, characterized in that: An oil passage block support plate is fixedly provided between the two lower component side plates near the bottom end. The oil passage block is located at the upper end of the oil passage block support plate and is fixedly connected to the oil passage block support plate.

3. The lower assembly of the quick connector for the skid trolley according to claim 2, characterized in that: The number of oil circuit block support plates is two. The two oil circuit block support plates are located at the front and rear positions between the two lower component side support plates, respectively. The front and rear ends of the oil circuit block are fixedly connected to the two oil circuit block support plates.

4. The lower assembly of the quick connector for the skid trolley according to claim 1, characterized in that: The lower component has two holes on its rear seat plate, which are arranged in the left-right direction.

5. The lower assembly of the quick connector for the skid trolley according to claim 1, characterized in that: Auxiliary operation holes are provided on both sides of the bottom end of the oil circuit block on the side seat plates of the two lower components.

6. The lower assembly of the quick connector for the skid trolley according to claim 1, characterized in that: The number of oil lines on the oil circuit block is five.

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