A connection device for PVC pipe laying

Abstract

A connection device for laying PVC pipes relates to the technical field of pipe connection devices, comprising a center block, two side sliders slidably connected to the center block, a vertical sliding frame slidably mounted on the side sliders, a horizontal sliding block slidably mounted on the center block, a vertical sliding block slidably mounted on the horizontal sliding block, a horizontal sliding frame slidably connected to the vertical sliding block and slidably mounted on the vertical sliding frame, a clamping plate rotatably mounted on the horizontal sliding frame, a driving component 1 for driving the vertical sliding frame to move relative to the side sliders, a driving component 2 for driving the side sliders to move relative to the center block, and a rotating component for driving the clamping plate to rotate; the present invention can adjust two PVC pipes that need to be butted together in both horizontal and vertical directions, so that the axes of the two PVC pipes that are misaligned in both horizontal and vertical directions coincide with each other, and drive the two PVC pipes with coincident axes to approach each other to complete the butt connection, is not affected by uneven ground, and can adapt to various pipeline laying scenarios.

Description

Technical Field

[0001] The invention relates to the technical field of pipe connection equipment, in particular to a connection equipment for laying PVC pipes. Background Art

[0002] In modern construction projects, municipal projects, and various pipeline laying scenarios, PVC pipes are widely used due to their good corrosion resistance, light weight, and relatively low cost. However, in the process of laying PVC pipes, the connection problem has always been a key link. In pipeline laying projects, when it is necessary to dock the pipes, it is generally completed by manual holding and equipment docking. However, the manual holding method has low production efficiency, and in actual work, the connection accuracy will be reduced due to operator jitter. Therefore, in some large-scale projects and industrial pipeline fields, as well as industries with high requirements for pipeline connection accuracy, pipeline connections often use equipment docking.

[0003] The Chinese invention patent with publication number CN115008174B discloses a clamp-type docking device and an operating method for achieving precise docking of pipeline ports. By adopting a design in which a dual-axis rotating motor and a gear A are used to control the tightness of the holding components, when the device is used, only the two holding components need to be put on the two pipelines in turn, and the dual-axis rotating motor and the gear A drive the holding components to be tightened, so that the device can be quickly assembled on the external pipeline, which greatly improves the efficiency of the device during assembly; under normal conditions, the connection mechanism in a flexible state can facilitate the assembly of the two holding components on the external pipeline according to its own ductility and flexibility, and when it is powered on and converted to rigidity, the two pipelines can be pulled to adjust to the same horizontal line, thereby eliminating the need for staff to pre-fabricate the two pipelines and place them on the same horizontal line, thereby improving the efficiency of the device during use.

[0004] However, in the pipeline laying scenario, the ground is often uneven, and there may be a height difference between the two PVC pipes that need to be connected. Although the above invention patent does not require the staff to pre-fabricate the two pipes and place them on the same horizontal line in advance, it is still affected by the terrain and can only adjust the two pipes on the same horizontal plane. It is impossible to make the axes of the two pipes with height differences coincide, and the scope of application is relatively narrow.

[0005] In summary, it is necessary to invent a connection device for laying PVC pipes, which can adjust two PVC pipes in both horizontal and vertical directions, is not affected by terrain, expands the scope of application, and improves production efficiency. Summary of the invention

[0006] In view of the above problems, the present invention proposes a connection device for laying PVC pipes, and the technical solution used is:

[0007] A connection device for laying PVC pipes, comprising a center block, two side sliders slidably connected to the center block, a vertical sliding frame slidably mounted on the side sliders, a horizontal sliding block slidably mounted on the center block, a vertical sliding block slidably mounted on the horizontal sliding block, a horizontal sliding frame slidably connected to the vertical sliding block and slidably mounted on the vertical sliding frame, a clamping plate rotatably mounted on the horizontal sliding frame, a driving component 1 for driving the vertical sliding frame to move relative to the side sliders, a driving component 2 for driving the side sliders to move relative to the center block, and a rotating component for driving the clamping plate to rotate;

[0008] The driving assembly 1 includes a bidirectional sleeve slidably mounted on the central block, and a limit rod slidably connected to the side slider and slidably mounted in the bidirectional sleeve; the vertical sliding frame is fixedly mounted with a limit block 1 and a limit block 2 respectively located on the upper and lower sides of the corresponding side slider; the limit rod is fixedly provided with a limit slope block intermittently contacting the limit block 1; the limit block 2 intermittently abuts against the side slider;

[0009] The second driving assembly comprises a connecting block slidably mounted on the central block, and a linkage rod arranged between the connecting block and the side slider; one end of the linkage rod is rotatably mounted on the connecting block, and the other end is rotatably mounted on the corresponding side slider.

[0010] Furthermore, the bidirectional sleeve is driven to move by a threaded rod rotatably mounted on the center block.

[0011] Furthermore, a second supporting connecting rod is fixedly mounted on the side sliding block, and the limiting rod is slidably connected with the second supporting rod.

[0012] Furthermore, the connecting block is driven to move by a threaded rod rotatably mounted on the central block.

[0013] Furthermore, the rotating assembly includes a rotating shaft rotatably mounted on a horizontal sliding frame, and a worm coaxially fixedly mounted on the rotating shaft; a fan-shaped worm wheel meshing with the worm is fixedly mounted on the clamping plate.

[0014] Furthermore, it also includes a clamping rod; the horizontal sliding block is provided with a clamping hole matched with the clamping rod.

[0015] Furthermore, a connecting sleeve is fixedly mounted on the vertical sliding block, and a connecting sliding rod slidably mounted in the connecting sleeve is fixedly mounted on the horizontal sliding frame.

[0016] Furthermore, a supporting connecting rod 1 is fixedly mounted on the central block, and the side sliding block is slidably mounted on the supporting connecting rod 1.

[0017] Since the present invention adopts the above technical solution, the present invention has the following advantages:

[0018] 1. The present invention can adjust two PVC pipes that need to be butt-jointed in both the horizontal and vertical directions, so that the axes of two PVC pipes that are misaligned in both the horizontal and vertical directions can coincide with each other, and drive the two PVC pipes whose axes coincide with each other to approach each other to complete the butt-jointing, which is not affected by uneven ground, has a wide range of applications, and can adapt to various pipeline laying scenarios.

[0019] 2. The present invention can drive the clamping plate to rotate through the coordinated design of the fan-shaped worm gear, the rotating shaft and the worm, so that the clamping plate clamps the PVC pipe, and under the self-locking effect of the fan-shaped worm gear and the worm, even if the rotating shaft no longer rotates, the clamping plate can still clamp the PVC pipe to ensure that the PVC pipe will not fall off, thereby avoiding the instability of the clamping plate affecting the connection of the PVC pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1-Figure 5 It is a schematic diagram of the overall structure of the present invention.

[0021] Figure 6-Figure 7 The figure is a schematic diagram of the assembly structure of the central block, the horizontal sliding block, the vertical sliding block, the clamping rod, the bidirectional sleeve and the connecting block of the present invention.

[0022] Figure 8 The exploded structure diagram of the central block, horizontal sliding block, vertical sliding block, clamping rod, bidirectional sleeve and connecting block of the present invention is shown.

[0023] Fig. 9 This is a schematic diagram of the structure of the present invention after the clamping plate and the rotating shaft are removed.

[0024] Fig.10 It is a schematic diagram of the assembly structure of the central block, horizontal sliding block, vertical sliding block, clamping rod, side sliding block, vertical sliding frame and horizontal sliding frame of the present invention.

[0025] Fig.11 The figure is a schematic diagram of the assembly structure of the central block, the horizontal sliding block, the vertical sliding block, the clamping rod and the horizontal sliding frame of the present invention.

[0026] Fig.12 The figure is a schematic diagram of the assembly structure of the central block, the vertical sliding frame, the horizontal sliding frame, the connecting block and the linkage rod of the present invention.

[0027] Fig.13 It is a schematic diagram of the assembly structure of the center block, the vertical sliding frame, the side sliding blocks, the vertical sliding frame, the bidirectional sleeve and the limit rod of the present invention.

[0028] Fig.14 It is a schematic diagram of the assembly structure of the side sliding block, the vertical sliding frame, the horizontal sliding frame and the limiting rod of the present invention.

[0029] Fig.15 It is a schematic diagram of the assembly structure of the horizontal sliding frame, the clamping plate and the rotating shaft of the present invention.

[0030] Figure Number:

[0031] 1-center block (101-support connecting rod 1; 102-threaded rod); 2-horizontal sliding block (201-clamping hole); 3-vertical sliding block (301-connecting sleeve); 4-side sliding block (401-support connecting rod 2); 5-vertical sliding frame (501-limiting block 1; 502-limiting block 2); 6-horizontal sliding frame (601-connecting sliding rod); 7-clamping rod; 8-bidirectional sleeve; 9-limiting rod (901-limiting ramp block); 10-connecting block; 11-linking rod; 12-splint (1201-fan-shaped worm gear); 13-rotating shaft (1301-worm; 1302-linking gear). DETAILED DESCRIPTION

[0032] The technical solution of the present invention is further specifically described below by way of embodiments and in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0033] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "up", "down", "in", "out", "front", "back", etc. are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. Example

[0034] This embodiment is used for butt joint of PVC pipes during hot melt connection. Figure 1-Figure 5 As shown, it includes a central block 1, a horizontal sliding block 2, a vertical sliding block 3, a side sliding block 4, a vertical sliding frame 5, a horizontal sliding frame 6, a clamping rod 7, a two-way sleeve 8, a limit rod 9, a connecting block 10, a linkage rod 11, a clamping plate 12 and a rotating shaft 13.

[0035] like Figure 6-Figure 8As shown, two horizontally arranged supporting connecting rods 101 are fixedly installed on the front and rear ends of the center block 1, and a horizontally arranged threaded rod 102 is rotatably installed on the left and right ends; there are two horizontal sliding blocks 2, which are respectively installed on the front and rear sides of the center block 1 for horizontal sliding, and the left and right sides of the horizontal sliding block 2 are elastically connected to the center block 1 through the compression spring. The compression spring is always compressed, so that the horizontal sliding block 2 has a tendency to move toward the middle of the center block 1; each horizontal sliding block 2 is vertically slidably installed with a vertical sliding block 3, and each vertical sliding A connecting sleeve 301 is horizontally fixedly installed on each block 3; a clamping hole 201 is provided at the top of each horizontal sliding block 2, and the two clamping holes 201 are intermittently connected; the clamping rod 7 is slidably installed in one of the clamping holes 201, and when the two clamping holes 201 are connected, the clamping rod 7 can be inserted into the two clamping holes 201 at the same time, so that the two horizontal sliding blocks 2 are relatively fixed; the bidirectional sleeve 8 and the connecting block 10 are horizontally slidably installed on the left and right sides of the central block 1 respectively, and are threadedly connected with the threaded rod 102 on the same side; knobs are coaxially fixedly installed on the two threaded rods 102.

[0036] like Figure 9-11 As shown, two side sliders 4 are provided, and are symmetrically arranged on the front and rear sides of the center block 1, and are horizontally penetrated and slidably installed on the support connecting rod 101 on the same side; a vertical sliding frame 5 is vertically slidably installed in each side slider 4, and a horizontal sliding frame 6 is horizontally slidably installed at the bottom end of each vertical sliding frame 5; a connecting slide bar 601 is horizontally fixedly installed on each horizontal sliding frame 6, and the connecting slide bar 601 is slidably installed in the connecting sleeve 301 on the same side; a support connecting rod 2 401 is horizontally fixedly installed on the side slider 4; a limit block 1 501 and a limit block 2 502 are fixedly provided on the vertical sliding frame 5, which are respectively located on the upper and lower sides of the corresponding side slider 4.

[0037] like Fig. 9 and Fig.12 As shown, a linkage rod 11 is provided between the connection block 10 and the two side sliders 4 , one end of the linkage rod 11 is rotatably mounted on the connection block 10 , and the other end is rotatably mounted on the corresponding side slider 4 .

[0038] like Fig. 9 and Figure 13-Figure 14As shown, limiting rods 9 are slidably installed on both halves of the two-way sleeve 8; the limiting rod 9 is L-shaped as a whole, and its long rod is slidably installed in the two-way sleeve 8, and is slidably connected with the supporting connecting rod 2 401 on the same side (the long rod and the supporting connecting rod 2 401 are perpendicular to each other), and a limiting slope block 901 is fixedly installed on the end point of the short rod, and the limiting slope block 901 is horizontally slidably connected with the side slider 4 on the same side; the top of the slope of the limiting slope block 901 is provided with a horizontal surface connected to the inclined surface; the limiting slope block 901 intermittently contacts with the limiting block 1 501, and the movement of the limiting block 1 501 along the inclined surface of the limiting slope block 901 can drive the vertical sliding frame 5 to move the opposite side slider 4 in the vertical direction.

[0039] like Fig.15 As shown, two rotating shafts 13 are horizontally arranged on each horizontal sliding frame 6, and the two rotating shafts 13 are parallel to each other and are rotatably mounted on the horizontal sliding frame 6; two worms 1301 are coaxially fixedly mounted on each rotating shaft 13, and the spiral directions of the two worms 1301 are opposite; each rotating shaft 13 corresponds to a pair of clamping plates 12 (the two clamping plates 12 of the same pair correspond to the two worms 1301 on the rotating shaft 13 respectively), the clamping plates 12 are arc-shaped, and a fan-shaped worm gear 1201 is fixedly mounted on the top; the fan-shaped worm gear 1201 is rotatably mounted on the horizontal sliding frame 6 and meshes with the worm 1301 corresponding to the clamping plate 12; even if the rotating shaft 13 stops rotating, the self-locking of the fan-shaped worm gear 1201 and the worm 1301 can ensure that the clamping plate 12 clamps the PVC pipe and the PVC pipe will not fall; a linkage gear 1302 is coaxially fixedly mounted on each rotating shaft 13, and the two linkage gears 1302 mesh with each other; a knob is coaxially fixedly mounted on one of the linkage gears 1302.

[0040] The working principle of this embodiment is as follows:

[0041] In the first step, the operator turns the knob on the linkage gear 1302 to make the two rotating shafts 13 rotate synchronously, the worm 1301 drives the fan-shaped worm wheel 1201 to rotate, and the fan-shaped worm wheel 1201 drives the clamping plates 12 to rotate outward, and the clamping plates 12 of the same pair open;

[0042] In the second step, there is a relative distance between the two PVC pipe openings in both the horizontal and vertical directions, and the position of the clamping plate 12 needs to be adjusted according to the position of the PVC pipe openings;

[0043] First, the operator moves the horizontal sliding frame 6 to make the horizontal sliding frame 6 slide in the horizontal direction relative to the vertical sliding frame 5. At the same time, driven by the connecting slide rod 601 and the connecting sleeve 301, the vertical sliding block 3 and the horizontal sliding block 2 slide horizontally with the horizontal sliding frame 6, so that the clamping plates 12 on both sides are respectively located directly above the two PVC pipe openings;

[0044] Then the operator pushes the vertical sliding frame 5 downward, so that the slider 4 on the opposite side of the vertical sliding frame 5 moves vertically downward, and the horizontal sliding frame 6 moves downward synchronously with the vertical sliding frame 5. At the same time, driven by the connecting slide rod 601 and the connecting sleeve 301, the vertical sliding block 3 moves downward relative to the horizontal sliding block 2 until the clamping plates 12 on both sides move to the locations of the PVC pipe openings at different heights.

[0045] In the third step, the operator turns the knob on the linkage gear 1302 again to make the two rotating shafts 13 rotate synchronously, the worm 1301 drives the fan-shaped worm gear 1201 to rotate, and the fan-shaped worm gear 1201 drives the clamping plates 12 to rotate inward, and the same pair of clamping plates 12 clamp the corresponding PVC pipe openings;

[0046] In the fourth step, the operator moves the horizontal sliding block 2 (the rebound effect of the compression springs on both sides of the horizontal sliding block 2 will assist the horizontal sliding block 2 to move to the middle of the center block 1), so that the clamping holes 201 on the two horizontal sliding blocks 2 are connected, and the clamping rod 7 is pushed into the two clamping holes 201, so that the two horizontal sliding blocks 2 are relatively fixed; during the movement of the horizontal sliding block 2, driven by the connecting slide rod 601 and the connecting sleeve 301, the horizontal moving frame 6 slides in the horizontal direction relative to the vertical sliding frame 5, and the clamping plate 12 drives the PVC pipe opening to move in the horizontal direction, so that the axes of the two PVC pipes are located in the same vertical plane;

[0047] In the fifth step, the operator turns the knob of the threaded rod 102 where the two-way sleeve 8 is located. The rotation of the threaded rod 102 drives the two-way sleeve 8 to move toward the center block 1, and the two-way sleeve 8 drives the limiting rods 9 on both sides to move toward the vertical sliding frame 5. Then the limiting slope block 901 contacts the corresponding limiting block 1 501 (due to the different heights of the two PVC pipe openings, the contact time of the two limiting slope blocks 901 with the corresponding limiting block 1 501 is also different), and the limiting block 1 501 moves along the inclined surface of the limiting slope block 901, and the vertical sliding frame 5 is moved. The movable frame 5 then moves upward relative to the side slider 4 until the limit block 1 501 contacts the top horizontal surface of the limit slope block 901. At this time, the side slider 4 abuts against the limit block 2 502. The operator stops rotating the threaded rod 102, and the two-way sleeve 8, the limit rod 9 and the vertical sliding frame 5 stop moving. The side slider 4, the vertical sliding frame 5 and the limit rod 9 are relatively fixed. In the process of the vertical sliding frame 5 moving upward relative to the side slider 4, the clamping plate 12 drives the PVC pipe opening to move upward, and the axes of the two PVC pipe openings coincide.

[0048] In the sixth step, the operator turns the knob of the threaded rod 102 where the connection block 10 is located, and the threaded rod 102 rotates to drive the connection block 10 to move away from the center block 1, driving the two linkage rods 11 to move, and the linkage rod 11 drives the corresponding side slider 4 to move toward the center block 1, and the connection slide rod 601 slides into the corresponding connection sleeve 301 (the limit rod 9 also enters the two-way sleeve 8), and the side slider 4 drives the clamping plate 12 to move, and the clamping plates 12 on both sides drive the two PVC pipe openings to move closer to each other;

[0049] After the distance between the two PVC pipe ends is shortened, the operator pre-processes the PVC pipe ends according to the connection methods prepared in advance. For example, if glue bonding is used, glue needs to be applied to the connection parts of the two PVC pipes. If a socket connection is used, a rubber sealing ring needs to be installed in the socket of the PVC pipe. If a flange connection is used, flanges need to be installed at the ends of the two PVC pipes. If a hot melt connection is used, a hot melt plate needs to be placed between the two pipe ends.

[0050] Then, the operator continues to control the movement of the clamping plates 12 on both sides according to the selected connection method to complete the subsequent connection work so that the two PVC pipes are butt-joined together;

[0051] In the seventh step, the operator turns the knob on the linkage gear 1302 to make the two rotating shafts 13 rotate synchronously, the worm 1301 drives the fan-shaped worm wheel 1201 to rotate, and the fan-shaped worm wheel 1201 drives the clamping plate 12 to rotate outward, the same pair of clamping plates 12 opens, the PVC pipe is loosened, the connecting device is removed, and the PVC pipe docking is completed.

Claims

1. A connection device for laying PVC pipes, characterized in that: The invention comprises a central block (1), two side sliders (4) slidably connected to the central block (1), a vertical sliding frame (5) slidably mounted on the side sliders (4), a horizontal sliding block (2) slidably mounted on the central block (1), a vertical sliding block (3) slidably mounted on the horizontal sliding block (2), a horizontal sliding frame (6) slidably connected to the vertical sliding block (3) and slidably mounted on the vertical sliding frame (5), a clamping plate (12) rotatably mounted on the horizontal sliding frame (6), a driving component 1 for driving the vertical sliding frame (5) to move relative to the side sliders (4), a driving component 2 for driving the side sliders (4) to move relative to the central block (1), and a rotating component for driving the clamping plate (12) to rotate; the driving component 1 comprises a bidirectional sleeve slidably mounted on the central block (1) (8), and a limit rod (9) slidably connected to the side slider (4) and slidably mounted in the bidirectional sleeve (8); a limit block 1 (501) and a limit block 2 (502) respectively located on the upper and lower sides of the corresponding side slider (4) are fixedly mounted on the vertical sliding frame (5); a limit slope block (901) intermittently in contact with the limit block 1 (501) is fixedly mounted on the limit rod (9); the limit block 2 (502) intermittently abuts against the side slider (4); the driving assembly 2 comprises a connecting block (10) slidably mounted on the central block (1), and a linkage rod (11) arranged between the connecting block (10) and the side slider (4); one end of the linkage rod (11) is rotatably mounted on the connecting block (10), and the other end is rotatably mounted on the corresponding side slider (4); A second supporting link (401) is fixedly mounted on the side slide block (4), and the limiting rod (9) is slidably connected to the second supporting link (401); It also includes a clamping rod (7); the horizontal sliding block (2) is provided with a clamping hole (201) that matches the clamping rod (7); A connecting sleeve (301) is fixedly mounted on the vertical sliding block (3), and a connecting sliding rod (601) slidably mounted in the connecting sleeve (301) is fixedly mounted on the horizontal sliding frame (6).

2. A PVC pipe laying connection device according to claim 1, characterized in that: The bidirectional sleeve (8) is driven to move by a threaded rod (102) rotatably mounted on the center block (1).

3. A PVC pipe laying connection device according to claim 1, characterized in that: The connecting block (10) is driven to move by a threaded rod (102) rotatably mounted on the central block (1).

4. A PVC pipe laying connection device according to claim 1, characterized in that: The rotating assembly comprises a rotating shaft (13) rotatably mounted on a horizontal sliding frame (6), and a worm (1301) coaxially fixedly mounted on the rotating shaft (13); a fan-shaped worm wheel (1201) meshing with the worm (1301) is fixedly mounted on the clamping plate (12).

5. A PVC pipe laying connection device according to claim 1, characterized in that: A supporting connecting rod 1 (101) is fixedly mounted on the central block (1), and the side sliding block (4) is slidably mounted on the supporting connecting rod 1 (101).

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