Refrigeration pipeline connecting device

Abstract

A refrigeration pipeline connecting device belongs to the field of pipeline connection and comprises two pipelines, flange plates are arranged at the joints of the two pipelines respectively, the outer sides of the flange plates are movably sleeved with the same box body, through grooves are formed in the two sides of the box body respectively, and the pipelines and the flange plates are inserted into the box body through the through grooves. A plurality of clamping plates are slidably mounted in the box body, the clamping plates are uniformly and circumferentially distributed along the axis of the pipeline, clamping grooves are formed in the inner sides of the clamping plates respectively, and the flange plates are located in the clamping grooves; and a driving mechanism capable of driving the clamping plate to move towards or away from the pipeline is arranged on the box body. The flange pipe connecting device is simple in structure, ingenious in conception, capable of being used for rapid positioning and connecting of flange pipes, suitable for connection of rectangular flange pipes and round flange pipes with different diameters and square cross sections, capable of meeting actual requirements and suitable for popularization.

Description

Technical Field

[0001] The invention belongs to the field of pipeline connection, in particular to a refrigeration pipeline connection device. Background Art

[0002] Refrigeration pipes include high-pressure pipes and low-pressure pipes, among which high-pressure pipes are mainly used for pipe connections between compressors, condensers, expansion valves and evaporators; low-pressure pipes are mainly used for ventilation and air supply pipes. Existing ventilation and air supply pipes are generally connected by flanges, which require multiple bolts to tighten. The installation and disassembly operations are cumbersome and inconvenient to operate in narrow spaces. Therefore, I invented a ventilation duct connection device for flange pipe connections. Summary of the invention

[0003] The invention provides a refrigeration pipeline connecting device to solve the defects in the prior art.

[0004] The present invention is achieved through the following technical solutions: A refrigeration pipe connection device comprises two pipes. Flange plates are respectively arranged at the connection points of the two pipes. The outer sides of the flange plates are movably mounted on the same box body. Through grooves are respectively arranged on both sides of the box body. The pipes and the flange plates are inserted into the box body through the through grooves. Several clamping plates are slidably installed in the box body. The clamping plates are evenly distributed along the axis of the pipe. Slots are respectively arranged on the inner sides of the clamping plates. The flange plates are located in the slots. A driving mechanism capable of driving the clamping plates to move toward or away from the pipe is provided on the box body.

[0005] A refrigeration pipe connection device as described above, wherein the driving mechanism includes sliding rods, which are fixedly mounted on corresponding clamping plates, the outer ends of the sliding rods extend out of a box body, an inner gear ring is rotatably mounted on the side of the box body, and a plurality of gears are meshingly provided on the inner side of the inner gear ring, the gears correspond to the sliding rods one by one, the gears are rotatably mounted on the box body, strip plates are fixedly mounted on the sides of the gears, strip slide grooves are respectively provided on the strip plates, and the sliding rods are slidably positioned in the corresponding strip slide grooves.

[0006] In the refrigeration pipe connection device as described above, avoidance slide grooves are respectively provided on the box body corresponding to the slide rods, and the slide rods slide and are located in the corresponding avoidance slide grooves.

[0007] In the refrigeration pipe connection device as described above, a worm gear groove is provided on the outer periphery of the inner gear ring, a worm is meshed and matched on one side of the worm gear groove, and the worm is rotatably mounted on the box body through a shaft seat.

[0008] As described above, in a refrigeration pipe connection device, several clamping plates are contacted and matched head to tail to form a clamping ring, and the inner wall of the box body is provided with several limit slide grooves corresponding to each clamping plate, and sliders are slidably installed in the limit slide grooves, and the sliders are fixed on the corresponding clamping plates. When the clamping plates move toward or away from the pipes, the sliders are driven to slide along the corresponding limit slide grooves, and the clamping plates keep contacting and matching head to tail, and the inner diameter of the clamping ring gradually increases or decreases.

[0009] As described above, a refrigeration pipe connection device, the side of the slot facing away from the pipe is provided with a guide slope, the sides of the two flange plates facing away from each other are provided with a clamping plate, the outer ends of the clamping plates are in sliding contact with the corresponding guide slopes, a rubber gasket is provided between the two flange plates, and a plurality of dovetail grooves are provided on the side of the clamping plate facing away from the flange plate, and dovetail sliders are slidably installed in the dovetail grooves, and the dovetail sliders are connected to the slots by a plurality of spring telescopic rods.

[0010] In the refrigeration pipe connection device as described above, one side of the inner end of the clamping plate is respectively provided with an avoidance slope.

[0011] In the refrigeration pipe connection device as described above, two rubber gaskets are provided, and a same support ring is provided between the two rubber gaskets. A coaxial support ring plate is fixedly installed on the inner circumference of the support ring, and the support ring plate can form an outward supporting force for the pipe.

[0012] In the refrigeration pipe connection device as described above, an annular groove is provided on the inner circumference of the pipe corresponding to the support ring plate, and the support ring plate can be inserted into the annular groove.

[0013] The advantages of the present invention are: the present invention has a simple structure and an ingenious design, can be used for rapid positioning and connection of flange pipes, and is suitable for connecting rectangular flange pipes and round flange pipes with square cross sections of different diameters, can meet actual needs, and is suitable for promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 yes Figure 1 The view from point A, Figure 3 yes Figure 1 Left view of Figure 4 yes Figure 1 The view from point B; Figure 5 It is a schematic diagram of the minimum state of the clamping ring; Figure 6 This is a schematic diagram of the maximum state of the clamping ring; Figure 7 yes Figure 1 A partial enlarged view of location Ⅰ.

[0016] 1. Pipe, 2. Flange plate, 3. Box body, 4. Through groove, 5. Clamping plate, 6. Slot, 20. Slide rod, 21. Internal gear ring, 22. Gear, 23. Strip plate, 24. Strip slide, 30. Avoid slide, 40. Worm gear groove, 41. Worm, 42. Handwheel, 50. Limit slide, 51. Slider, 60. Guide slope, 61. Clamp, 62. Rubber gasket, 63. Dovetail slide, 64. Dovetail slider, 65. Spring telescopic rod, 70. Avoid slope, 80. Support ring, 81. Support ring plate, 90. Annular groove. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] A refrigeration pipe connection device, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7As shown, it includes two pipes 1, and flange plates 2 are respectively provided at the connection of the two pipes 1. The cross sections of the pipes 1 and the flange plates 2 are both square, and can also be both circular. In this embodiment, the cross sections of the pipes 1 and the flange plates 2 are both square, and the outer side of the flange plates 2 is movably mounted on the same box body 3. The two sides of the box body 3 are respectively provided with through grooves 4, and the pipes 1 and the flange plates 2 are inserted into the box body 3 through the through grooves 4; a plurality of clamping plates 5 are slidably installed in the box body 3, and the clamping plates 5 are evenly distributed along the axis of the pipe 1. The clamping plates 5 are slidably installed on the box body 3 in the direction of approaching and departing from the pipe 1, and the side of the clamping plates 5 facing the pipe 1 is the inner side, and the inner side of the clamping plates 5 is respectively provided with a card slot 6, and the flange plate 2 is located in the card slot 6; the box body 3 is provided with a driving mechanism that can drive the clamping plates 5 to move toward or away from the pipe 1. The present invention has a simple structure and an ingenious design, can be used for the rapid positioning and connection of flange pipes, and is suitable for the connection of rectangular flange pipes and round pipe flange pipes with square cross sections of different diameters, can meet actual needs, and is suitable for promotion. When using the present invention, firstly, the ends of the two pipes 1 and the flange plates 2 are inserted into the box body 3 through the through grooves 4, and the flange plates 2 are aligned with the slots 6 on the clamping plates 5, and then the clamping plates 5 are controlled by the driving device to move toward the pipe 1 so that the two flange plates 2 are located in the slots 6. When the flange plates 2 are located in the slots 6, the flange plates 2 on the left and right sides are close together to ensure the sealing of the connection of the flange plates 2 until the clamping plates 5 are respectively fitted with the corresponding sides of the pipe 1. Since the clamping plates 5 are synchronously close to the axis of the box body 3, under the constraint of the clamping plates 5, the pipes 1 and flange plates 2 on both sides can be coaxially distributed with the box body 3, respectively, and the positioning of the pipes 1 on both sides is quickly completed.

[0019] Specifically, if Figure 1 and Figure 3 As shown, the driving mechanism described in this embodiment includes a slide rod 20, which is fixedly mounted on the corresponding clamping plate 5, and the outer end of the slide rod 20 extends out of the box body 3. The side of the box body 3 is rotatably mounted with an inner gear ring 21, and the inner gear ring 21 is coaxially arranged with the box body 3 and the pipeline 1. The inner gear ring 21 is rotatably connected to the left side of the box body 3 through a bearing. The inner side of the inner gear ring 21 is meshed with a plurality of gears 22, and the gears 22 correspond to the slide rod 20 one by one. The gears 22 are rotatably mounted on the box body 3, and the gears 22 are rotatably mounted on the left side of the box body 3 through bearings. Strip plates 23 are fixedly mounted on the sides of the gears 22, and strip slide grooves 24 are respectively provided on the strip plates 23. The slide rods 20 are slidably located in the corresponding strip slide grooves 24. When the inner gear ring 21 is rotated, the inner gear ring 21 revolves and rotates, and the inner gear ring 21 drives the gear 22 and the strip plate 23 to rotate, and the slide rod 20 slides in the strip slide groove 24, so that the clamping plate 5 moves toward or away from the pipeline 1, thereby realizing the drive adjustment of the clamping plate 5.

[0020] Specifically, Figure 1 and Figure 3As shown, the box body 3 of this embodiment is provided with avoidance grooves 30 corresponding to the slide bars 20, and the slide bars 20 slide in the corresponding avoidance grooves 30. The slide bars 20 slide in the corresponding avoidance grooves 30, which increases the stability of the slide bars 20 when they move, and reduces the limit of the box body 3 on the movement of the clamping plate 5, thereby increasing the movement range of the clamping plate 5, thereby meeting the use requirements of a larger range of pipe 1 diameters.

[0021] Further, such as Figure 1 and Figure 3 As shown, the outer periphery of the inner gear ring 21 of this embodiment is provided with a worm wheel tooth groove 40, and a worm 41 is meshed and matched on one side of the worm wheel tooth groove 40, and a hand wheel 42 is fixedly installed on one end of the worm 41. It is more labor-saving to turn the worm 41 through the hand wheel 42, and the worm 41 is rotatably mounted on the box body 3 through the shaft seat. When the worm 41 is turned, the worm 41 drives the inner gear ring 21 to rotate through the worm wheel tooth groove 40, and the inner gear ring 21 is limited from rotating by itself by utilizing the self-locking of the worm wheel and worm, so that the inner gear ring 21 remains stable.

[0022] Furthermore, if Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, in this embodiment, several of the clamping plates 5 are in contact with each other end to end to form a clamping ring, and the contact surfaces of two adjacent clamping plates 5 are in sliding contact with each other. The inner wall of the box body 3 is provided with several limiting grooves 50 corresponding to each clamping plate 5, and sliders 51 are slidably installed in the limiting grooves 50. The sliders 51 are fixed on the corresponding clamping plates 5. When the clamping plates 5 move toward or away from the pipeline 1, the sliders 51 are driven to slide along the corresponding limiting grooves 50, and the clamping plates 5 maintain the end to end contact and fit, and the inner diameter of the clamping ring gradually increases or decreases. In this embodiment, the number of clamping plates 5 is four, and the limiting grooves 50 are at a forty-five degree angle with the inner side of the corresponding clamping plates 5, so that the inner side of each clamping plate 5 can fit with the side of the pipeline 1 with a square cross-section. When the clamping plate 5 moves toward or away from the pipe 1, it drives the slider 51 to slide along the corresponding limiting groove 50, and the clamping plate 5 maintains head-to-tail contact and fit, and the inner diameter of the clamping ring gradually increases or decreases, so that the inner side of the clamping plate 5 can fit with the side of the pipe 1 with a square cross-section, increasing the stability of the box body 3 when it is outside the pipe 1, and squeezing the pipe 1 from four directions at the same time, reducing deformation of the pipe 1 caused by uneven tightening and squeezing force.

[0023] Furthermore, if Figure 1 , Figure 4 and Figure 7As shown, in this embodiment, a guide slope 60 is respectively provided on the side of the clamping slot 6 facing away from the pipe 1, and a clamping plate 61 is respectively provided on the opposite side of the two flange plates 2. The outer end of the clamping plate 61 is in sliding contact with the corresponding guide slope 60, and a rubber gasket 62 is provided between the two flange plates 2. A plurality of dovetail grooves 63 are respectively provided on the side of the clamping plate 61 facing away from the flange plate 2, and dovetail sliders 64 are respectively slidably installed in the dovetail grooves 63. The dovetail sliders 64 are connected to the clamping slot 6 by a plurality of spring telescopic rods 65, one end of the spring telescopic rod 65 is fixedly connected to the clamping plate 5, and the other end is fixedly connected to the corresponding dovetail slider 64. The spring telescopic rod 65 can only be telescoped left and right, and the dovetail slider 64 can only slide up and down or forward and backward along the corresponding dovetail groove 63. In the initial state, the clamping plate 5 is away from the pipe 1, so that the pipe 1 and the flange plate 2 are inserted into the box body 3 through the through slot 4. At this time, the spring telescopic rod 65 exerts a force on the clamping plate 61 to move backward, and the distance between the clamping plates 61 on the left and right sides is the largest. Under the action of the guiding inclined surface 60, the inner end of the clamping plate 61 extends out of the slot 6. When the clamping plate 5 clamps and fixes the pipe 1, the clamping plate 5 moves toward the pipe 1, and the inner end of the clamping plate 61 first contacts and cooperates with the side surface of the pipe 1. As the clamping plate 5 continues to move toward the pipe 1, the clamping plate 61 is pressed into the slot 6 by the pipe 1, and the outer end of the clamping plate 61 slides along the guiding inclined surface 60. The side clamps 61 move toward each other, and the distance between the two side clamps 61 is shortened. The clamps 61 provide clamping force to the flange plates 2, so that the rubber gaskets 62 between the flange plates 2 are squeezed, thereby increasing the sealing of the connection between the two flange plates 2; when the pipes 1 on both sides are pulled in opposite directions, the flange plates 2 move the clamps 61 in opposite directions, and the clamps 61 move toward the pipe 1 under the action of the guiding slopes 60, so as to further clamp the pipe 1, so that the clamping force of the inner end of the clamps 61 on the pipe 1 becomes tighter and tighter with the pulling force on the pipe 1 in the opposite direction, thereby preventing the connection of the pipe 1 from being disconnected and increasing the stability of the connection.

[0024] Furthermore, if Figure 4 As shown, one side of the inner end of the clamping plate 61 in this embodiment is respectively provided with an avoidance slope 70. The avoidance slope 70 can avoid the influence of the adjacent clamping plate 5 on the movement of the clamping plate 61. When the inner diameter of the clamping ring is small, one end of the clamping plate 5 can slide along the avoidance slope 70, thereby ensuring that the clamping plate 61 can normally extend out of the slot 6.

[0025] Furthermore, if Figure 1 and Figure 7 As shown, in this embodiment, two rubber washers 62 are provided, and a support ring 80 is provided between the two rubber washers 62. A coaxial support ring plate 81 is fixedly installed on the inner periphery of the support ring 80, and the support ring plate 81 can form an outward support force for the pipeline 1. Under the support force of the support ring plate 81, the inward deformation of the pipeline 1 caused by external force extrusion can be reduced, and the leakage at the connection of the flange plate 2 can be reduced.

[0026] Furthermore, if Figure 1 and Figure 7 As shown, the inner circumference of the pipe 1 described in this embodiment is provided with an annular groove 90 corresponding to the support ring plate 81, and the support ring plate 81 can be inserted into the annular groove 90. The support ring plate 81 is inserted into the annular groove 90, so that the inner circumference of the support ring plate 81 is coplanar with the inner circumference of the pipe 1, thereby reducing wind resistance; when connecting two pipes 1, the box body 3 can be first moved to the outer circumference of one pipe 1, and then the two pipes 1 are plugged and matched with the support ring plate 81, and the two ends of the support ring plate 81 are inserted into the corresponding annular grooves 90, and then the box body 3 is moved to the connection between the two pipes 1.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A refrigeration pipe connection device, comprising two pipes (1), wherein flange plates (2) are respectively provided at the connection points of the two pipes (1), the outer sides of the flange plates (2) are movably mounted on the same box body (3), and through grooves (4) are respectively provided on both sides of the box body (3), and the pipes (1) and the flange plates (2) are inserted into the box body (3) through the through grooves (4); characterized in that: A plurality of clamping plates (5) are slidably mounted in the box body (3). The clamping plates (5) are evenly distributed along the axis of the pipeline (1). The inner sides of the clamping plates (5) are respectively provided with clamping grooves (6), and the flange plates (2) are located in the clamping grooves (6). The box body (3) is provided with a driving mechanism capable of driving the clamping plates (5) to move toward or away from the pipeline (1).

2. A refrigeration pipe connection device according to claim 1, characterized in that: The driving mechanism comprises a slide bar (20), the slide bar (20) being fixedly mounted on the corresponding clamping plate (5), the outer end of the slide bar (20) extending out of the box body (3), the side of the box body (3) being rotatably mounted with an inner gear ring (21), the inner side of the inner gear ring (21) being meshingly equipped with a plurality of gears (22), the gears (22) corresponding to the slide bar (20) one by one, the gears (22) being rotatably mounted on the box body (3), the side of the gears (22) being fixedly mounted with strip plates (23), the strip plates (23) being respectively provided with strip slide grooves (24), the slide bars (20) being respectively slidably located in the corresponding strip slide grooves (24).

3. A refrigeration pipe connection device according to claim 2, characterized in that: The box body (3) is provided with avoidance slide grooves (30) corresponding to the slide bars (20), and the slide bars (20) are slidably located in the corresponding avoidance slide grooves (30).

4. A refrigeration pipe connection device according to claim 2, characterized in that: A worm gear groove (40) is provided on the outer periphery of the inner gear ring (21), and a worm (41) is provided on one side of the worm gear groove (40) for meshing and matching. The worm (41) is rotatably mounted on the box body (3) via a shaft seat.

5. A refrigeration pipe connection device according to claim 1, characterized in that: A plurality of the clamping plates (5) are contacted and matched head to tail to form a clamping ring. A plurality of limit slide grooves (50) are respectively provided on the inner wall of the box body (3) corresponding to each clamping plate (5). Slide blocks (51) are respectively slidably installed in the limit slide grooves (50). The slide blocks (51) are fixed on the corresponding clamping plates (5). When the clamping plates (5) move toward or away from the pipeline (1), the slide blocks (51) are driven to slide along the corresponding limit slide grooves (50). The clamping plates (5) maintain contact and match head to tail, and the inner diameter of the clamping ring gradually increases or decreases.

6. A refrigeration pipe connection device according to claim 1, characterized in that: A guide slope (60) is provided on the side of the clamping groove (6) facing away from the pipe (1), and a clamping plate (61) is provided on the side of the two flange plates (2) facing away from each other. The outer end of the clamping plate (61) is in sliding contact with the corresponding guide slope (60). A rubber gasket (62) is provided between the two flange plates (2). A plurality of dovetail grooves (63) are provided on the side of the clamping plate (61) facing away from the flange plate (2), and dovetail sliders (64) are slidably installed in the dovetail grooves (63). The dovetail sliders (64) are connected to the clamping groove (6) via a plurality of spring telescopic rods (65).

7. A refrigeration pipe connection device according to claim 6, characterized in that: One side of the inner end of the clamping plate (61) is respectively provided with an avoidance slope (70).

8. A refrigeration pipe connection device according to claim 6, characterized in that: Two rubber washers (62) are provided, and a common support ring (80) is provided between the two rubber washers (62). A coaxial support ring plate (81) is fixedly mounted on the inner periphery of the support ring (80), and the support ring plate (81) can generate an outward support force for the pipeline (1).

9. A refrigeration pipe connection device according to claim 8, characterized in that: An annular groove (90) is provided on the inner circumference of the pipeline (1) corresponding to the supporting ring plate (81), and the supporting ring plate (81) can be inserted into the annular groove (90).

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