Quick connecting device for underground hydraulic pipeline of coal mine

Abstract

The utility model discloses a quick connecting device for underground hydraulic pipelines of a coal mine, which relates to the technical field of coal mines and comprises a joint, a connecting pipe arranged inside the circumference of the joint, a support fixedly connected to the inner wall of the joint, and a motor fixedly connected to the lower end of the support. Two racks are slidably connected to the interior of the connector, a gear is rotatably connected to the interior of the connector, the gear is in meshed connection with the two racks, the output end of the motor is fixedly connected with the center end of the gear, two fixing grooves are formed in the outer surface of the connecting pipe, and connecting plates are fixedly connected to the ends, away from each other, of the two racks; clamping plates are fixedly connected between the ends, close to each other, of the two connecting plates, and the two clamping plates are matched with the two fixing grooves in size, so that the two clamping plates can enter the fixing grooves to be fixed, and the connecting pipe and the connector can be connected.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mines, in particular to a quick connection device for hydraulic pipelines in underground coal mines. Background Art

[0002] The pipe connector is made of stainless steel and rubber to form a component combination device to achieve the sealing and pressure-bearing function. The structure is very compact and no treatment is required on the pipe ends during construction. Just put the connector on the two pipe ends to be connected and tighten the side bolts to make the teeth bite the surface of the pipe ends to achieve the limit fixation, and the sealing sleeve is tightly attached to the pipe to achieve a locked state of a sealed and firmly connected connection.

[0003] However, the existing device only fixes and seals the connecting steel plate and the gear ring by means of a spiral bolt. When the spiral bolt is spirally rotated, the connection is easily loosened, thereby affecting the firmness of the connection of the device. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the utility model provides a quick connection device for hydraulic pipelines in coal mines, which solves the problem that the prior device only fixes and seals the connecting steel plate and the gear ring through a spiral bolt, and the spiral bolt is prone to loosening when spirally rotating, thereby affecting the firmness of the connection of the device.

[0006] (II) Technical solution

[0007] To achieve the above purpose, the utility model is implemented through the following technical solutions: a quick connection device for hydraulic pipelines in coal mines, including a joint, a connecting pipe is arranged inside the circumference of the joint, a bracket is fixedly connected to the inner wall of the joint, a motor is fixedly connected to the lower end of the bracket, two racks are slidably connected inside the joint, a gear is rotatably connected inside the joint, the gear and the two racks are meshed and connected, the output end of the motor is fixedly connected to the center end of the gear, two fixed grooves are provided on the outer surface of the connecting pipe, the far ends of the two racks are fixedly connected to connecting plates, the close ends of the two connecting plates are fixedly connected to clamping plates, and the two clamping plates are respectively adapted to the sizes between the two fixing grooves.

[0008] Preferably, two placement grooves are provided inside the joint, and the two placement grooves are respectively adapted to the sizes between the two connecting plates.

[0009] Preferably, two limiting grooves are provided inside the joint, and sliders are slidably connected inside the two limiting grooves, and rear ends of the two sliders are fixedly connected to front ends of two racks respectively.

[0010] Preferably, two protective plates are provided on the outer surface of the joint.

[0011] Preferably, both left and right ends of the two protective plates are fixedly connected with pushing blocks.

[0012] Preferably, each of the four pushing blocks has a slot inside, and the positions of two slots located on the same side correspond to each other.

[0013] Preferably, a sealing ring is fixedly connected to the rear end of the joint, and the inner surface of the sealing ring is in contact with the outer surface of the connecting pipe.

[0014] Beneficial Effects

[0015] The utility model provides a quick connection device for hydraulic pipelines in coal mines. It has the following beneficial effects:

[0016] When it is necessary to quickly connect the connecting pipe and the joint, the inside of the joint is entered through the connecting pipe, and the motor can be started at this time. Since the output end of the motor is fixedly connected to the center end of the gear, and the gear is meshed with the rack, the two racks can be made to move relative to each other at the same time through the rotation of the gear. The connecting plate fixed by the two racks drives the clamping plate to move at the same time, and the two clamping plates can be entered into the fixing groove for fixing, so that the connecting pipe and the joint can be connected. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a rear-view stereoscopic structural schematic diagram of the utility model;

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of the utility model from top view;

[0020] Figure 4 It is a schematic diagram of the cutaway three-dimensional structure of the utility model.

[0021] In the figure: 1. joint; 2. connecting pipe; 3. sealing ring; 4. protective plate; 5. pushing block; 6. slot; 7. bracket; 8. motor; 9. gear; 10. rack; 11. connecting plate; 12. fixing slot; 13. limiting slot; 14. card plate. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figure 1-4 The utility model provides a technical solution: a quick connection device for hydraulic pipelines in coal mines, comprising a joint 1, a connecting pipe 2 is arranged inside the circumference of the joint 1, a bracket 7 is fixedly connected to the inner wall of the joint 1, a motor 8 is fixedly connected to the lower end of the bracket 7, two racks 10 are slidably connected inside the joint 1, a gear 9 is rotatably connected inside the joint 1, the gear 9 is meshed with the two racks 10, the output end of the motor 8 is fixedly connected to the center end of the gear 9, two fixed grooves 12 are provided on the outer surface of the connecting pipe 2, the far ends of the two racks 10 are fixedly connected to the connecting plates 11, the close ends of the two connecting plates 11 are fixedly connected to the clamping plates 14, and the two clamping plates 14 are respectively adapted to the sizes between the two fixing grooves 12.

[0024] During operation, when it is necessary to quickly connect the connecting pipe 2 and the joint 1, the inside of the joint 1 is entered through the connecting pipe 2, and the motor 8 can be started at this time. Since the output end of the motor 8 is fixedly connected to the center end of the gear 9, and the gear 9 is meshed with the rack 10, the two racks 10 can be made to move relative to each other at the same time through the rotation of the gear 9, and the connecting plate 11 fixed by the two racks 10 drives the clamping plate 14 to move at the same time, so that the two clamping plates 14 can enter the inside of the fixing groove 12 for fixing, and the connecting pipe 2 and the joint 1 can be connected.

[0025] See also Figure 1-4 The utility model provides a technical solution: two placement grooves are provided inside the joint 1, and the two placement grooves are respectively adapted to the sizes between the two connecting plates 11.

[0026] During operation, the placement groove and the two connecting plates 11 are adapted in size, so that when there is no need to move the connecting plates 11 , the connecting plates 11 can be placed inside the placement groove.

[0027] See also Figure 1-4 The utility model provides a technical solution: two limit grooves 13 are provided inside the joint 1, and sliders are slidably connected inside the two limit grooves 13, and the rear ends of the two sliders are fixedly connected to the front ends of the two racks 10 respectively.

[0028] During operation, since the slider is fixedly connected to the rack 10 , when the rack 10 moves, the slider can limit the movement of the rack 10 .

[0029] See also Figure 1-4 The utility model provides a technical solution: two protective plates 4 are arranged on the outer surface of the joint 1.

[0030] During operation, the outer surface of the joint 1 can be protected by the protective plate 4 .

[0031] See also Figure 1-4 The utility model provides a technical solution: the left and right ends of the two protective plates 4 are fixedly connected with a pushing block 5.

[0032] During operation, the protective plate 4 can be moved more conveniently by pushing the block 5 .

[0033] See also Figure 1-4 The utility model provides a technical solution: a card slot 6 is provided inside each of the four push blocks 5, and the positions of two card slots 6 located on the same side correspond to each other.

[0034] During operation, the positions of the two protection plates 4 can be fixed by the engagement of the clamping slots 6 with the screw nuts.

[0035] See also Figure 1-4 The utility model provides a technical solution: a sealing ring 3 is fixedly connected to the rear end of the joint 1, and the inner surface of the sealing ring 3 contacts the outer surface of the connecting pipe 2.

[0036] During operation, the sealing ring 3 contacts the outer surface of the connecting pipe 2 so that external dust cannot enter the interior of the joint 1 .

[0037] In summary, when it is necessary to quickly connect the connecting pipe 2 and the connector 1, the connector 1 is entered through the connecting pipe 2, and the motor 8 can be started at this time. Since the output end of the motor 8 is fixedly connected to the center end of the gear 9, and the gear 9 is meshed with the rack 10, the two racks 10 can be made to move relative to each other at the same time by the rotation of the gear 9. The connecting plate 11 fixed by the two racks 10 drives the card plate 14 to move at the same time, so that the two card plates 14 can enter the interior of the fixing groove 12 for fixing, and the connecting pipe 2 and the connector 1 can be connected.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A quick-connect device for hydraulic pipelines in coal mines, comprising a connector (1), Features: A connecting pipe (2) is arranged inside the circumference of the joint (1); a bracket (7) is fixedly connected to the inner wall of the joint (1); a motor (8) is fixedly connected to the lower end of the bracket (7); two racks (10) are slidably connected inside the joint (1); a gear (9) is rotatably connected inside the joint (1); the gear (9) is meshingly connected to the two racks (10); the output end of the motor (8) is fixedly connected to the center end of the gear (9); two fixed grooves (12) are provided on the outer surface of the connecting pipe (2); the two ends of the two racks (10) are fixedly connected to connecting plates (11); the two ends of the two connecting plates (11) are fixedly connected to clamping plates (14); the two clamping plates (14) are respectively adapted to the size of the two fixing grooves (12).

2. A quick-connect device for hydraulic pipelines in underground coal mines according to claim 1, Features: Two placement grooves are provided inside the joint (1), and the two placement grooves are respectively adapted to the sizes of the two connecting plates (11).

3. A quick connection device for hydraulic pipelines in underground coal mines according to claim 1, Features: Two limiting grooves (13) are provided inside the joint (1), and sliders are slidably connected inside the two limiting grooves (13), and the rear ends of the two sliders are fixedly connected to the front ends of the two racks (10) respectively.

4. A quick-connect device for hydraulic pipelines in underground coal mines according to claim 1, Features: The outer surface of the joint (1) is provided with two protective plates (4).

5. A quick-connect device for hydraulic pipelines in underground coal mines according to claim 4, Features: The left and right ends of the two protection plates (4) are both fixedly connected with a pushing block (5).

6. A quick-connect device for hydraulic pipelines in underground coal mines according to claim 5, Features: A card slot (6) is provided inside each of the four pushing blocks (5), and the positions of two card slots (6) located on the same side correspond to each other.

7. A quick-connect device for hydraulic pipelines in underground coal mines according to claim 1, Features: A sealing ring (3) is fixedly connected to the rear end of the joint (1), and the inner surface of the sealing ring (3) is in contact with the outer surface of the connecting pipe (2).

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