Leakage-proof device for heating and ventilation water supply and drainage pipe

Abstract

The utility model relates to the field of drainage pipes, and discloses a heating and ventilation water supply and drainage pipe leakage-proof device which comprises a pipe body, the outer wall of the right portion of the pipe body is arranged to be in a threaded shape, a pipe sleeve is connected to the threaded position of the outer wall of the right portion of the pipe body in a threaded mode, and a tensioning assembly is arranged between the pipe body and the pipe sleeve and comprises a fixing ring and a positioning frame. A guide groove is formed in the upper portion of the rear surface of the positioning frame, a two-way threaded rod is rotationally connected to the rear surface of the positioning frame, a sliding groove is formed in the inner wall of the positioning frame, and a guide frame is slidably connected to the upper portion of the inner wall of the sliding groove. According to the pipe body tensioning device, by rotating the bidirectional threaded rod, the two guide frames can move to drive the pressing plates to move towards the middle at the same time, the right inclined position of the pipe sleeve is extruded, the pressing plates move rightwards through the inclined position to drive the positioning frame, the positioning rod and the fixing ring to move, and therefore a pipe body is tensioned; the connection between the pipe body and the pipe sleeve is prevented from loosening, and the connection tightness and the leakage-proof effect are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of drain pipe especially relates to a heating ventilation drainage pipe leak protection device. BACKGROUND

[0002] In the field of construction engineering, the stable operation of the heating ventilation drainage system plays a vital role in the function realization of the whole building, and the heating ventilation system is usually used to guarantee the comfortable temperature, good ventilation and suitable air quality in the room, in the traditional heating ventilation drainage pipe system, the commonly used connection mode includes threaded connection, welding and flange connection etc.

[0003] When the threaded connection pipe transports the high temperature hot water in the heating ventilation system, the change of the temperature inside the pipe will cause the thermal expansion and cold shrinkage phenomenon, which leads to the loosening of the threaded connection part, and then forms the gap at the connection, thereby causing the leakage and affecting the drainage effect of the drain pipe, therefore, the heating ventilation drainage pipe leak protection device is proposed to solve the above problems. UTILITY MODEL CONTENT

[0004] In order to make up for the above shortage, the utility model provides a heating ventilation drainage pipe leak protection device, which aims at improving the problem of "the threaded connection pipe is loosened at the connection after thermal expansion and cold shrinkage, which leads to the water outflow during drainage and affects the drainage effect of the drain pipe" in the prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: a heating ventilation drainage pipe leak protection device, including the pipe body, the right part outer wall of the pipe body is provided with the thread shape, the right part outer wall of the pipe body is provided with the pipe sleeve at the thread, the pipe body and the pipe sleeve are provided with the tensioning assembly, the tensioning assembly includes the fixed ring and the positioning frame, the rear surface upper portion of the positioning frame is provided with the guide groove, the rear surface of the positioning frame is rotatably connected with the bidirectional thread rod, the inner wall of the positioning frame is provided with the sliding slot, the inner wall upper portion of the sliding slot is slidably connected with the guide frame, the rear surface of the guide frame is fixedly connected with the guide block, the inner wall middle portion of the guide frame is slidably connected with the guide rod, the bottom end outer wall of the guide rod is fixedly connected with the connecting rod, and the bottom end of the connecting rod is fixedly connected with the pressing plate.

[0006] Further description of the above technical scheme:

[0007] The right side of the fixed ring is provided with the sealing assembly, and the sealing assembly includes the rubber groove and the rubber pad.

[0008] Further description of the above technical scheme:

[0009] The right side of the connecting rod is fixedly connected with the positioning block, and the right side upper portion of the positioning frame is provided with the positioning slot.

[0010] As a further description of the above technical solutions:

[0011] The fixed ring is fixedly connected to the left side of the outer wall thread of the pipe body, the outer wall of the fixed ring is fixedly connected with positioning rods and is provided with multiple groups, and the positioning frame is provided in an inclined shape, and the multiple groups of positioning rods are fixedly connected to the four corners of the inclined positioning frame.

[0012] As a further description of the above technical solutions:

[0013] The guide block is slidingly connected to the inner wall of the guide groove, the guide block is threadedly connected to the outer wall upper thread of the bidirectional threaded rod, the pressing plate is provided in an arc shape, and the connecting rod penetrates and is slidingly connected to the bottom of the guide frame.

[0014] As a further description of the above technical solutions:

[0015] The positioning block is slidingly connected to the inner wall of the positioning groove, the guide rod, the positioning block, the connecting rod and the pressing plate are provided in multiple groups, and the multiple groups of the guide rod, the positioning block, the connecting rod and the pressing plate are arranged in an annular array with the center point of the positioning frame as the symmetric axis, the guide frame and the guide block are provided in two groups, and the two groups of the guide frame and the guide block are symmetrically arranged with the center line of the inclined positioning frame as the symmetric axis, and the two groups of the guide frame and the bidirectional threaded rod are provided in an inclined shape.

[0016] As a further description of the above technical solutions:

[0017] The rubber pad is provided in a T-shaped circular ring shape, and the right part of the rubber pad is connected to the inner wall of the rubber groove.

[0018] As a further description of the above technical solutions:

[0019] The left side of the rubber pad is fixedly connected with a supporting ring, and the supporting ring is rotatably connected to the right side of the fixed ring.

[0020] The utility model has the advantages of the following beneficial effects:

[0021] 1、in the utility model, by setting the fixed ring supporting positioning frame in the pipe body outer wall, after the pipe body and the sleeve are threadedly connected and installed, rotating the bidirectional threaded rod can make the two groups of guide frames move and drive the multiple groups of pressing plates to move to the middle at the same time, extruding the right inclined part of the sleeve, through the inclined part, the multiple groups of pressing plates are driven to move to the right, the positioning frame and the positioning rod and the fixed ring are moved, so that the pipe body is tensioned, the connection between the pipe body and the sleeve is prevented from loosening, and the connection tightness and the leakage prevention effect are improved.

[0022] 2. The utility model discloses, through setting up rubber groove in the left side of the pipe cover, after the threaded connection of pipe body and pipe cover, make the fixed ring drive support ring and rubber pad move to the right, through the piston connection of rubber pad and rubber groove, and the T-shaped circular ring of rubber pad can improve the sealing property of pipe body and pipe cover connection place to increase the sealing effect, further improve the leakage prevention effect. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is the three-dimensional structure schematic diagram of whole device in the utility model;

[0024] Figure 2 It is the three-dimensional structure right view of positioning frame in the utility model;

[0025] Figure 3 It is the three-dimensional structure split schematic diagram of fixed ring, support ring rubber pad and positioning rod and pipe body and pipe cover in the utility model;

[0026] Figure 4 It is the three-dimensional structure split schematic diagram of positioning frame and guiding frame of positioning frame in the utility model.

[0027] Legend:

[0028] 1, pipe body;2, pipe cover;3, positioning frame;21, rubber pad;22, fixed ring;23, support ring;24, rubber groove;31, positioning rod;32, bidirectional threaded rod;33, guiding block;34, positioning block;35, positioning groove;36, guiding rod;37, guiding frame;38, connecting rod;39, pressing plate;310, sliding groove;311, guiding groove. DETAILED DESCRIPTION

[0029] The technical scheme in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0030] Reference Figure 1 , Figure 2 and Figure 4The utility model provides a kind of embodiment: a warm and give drain pipe leak-proof device, the right part outer wall of pipe body 1 is set to thread, pipe sleeve 2 is threadedly connected in the right part outer wall threaded portion of pipe body 1, pipe body 1 and pipe sleeve 2 are threadedly connected to form drain pipe, pipe body 1 and pipe sleeve 2 between being provided with the tightness of pipe body 1 and pipe sleeve 2 connection increase tensioning assembly, tensioning assembly includes the fixed ring 22 for supporting multiple sets of guide groove 311 and the positioning frame 3 of supporting multiple sets of pressing plate 39, the rear surface upper portion of positioning frame 3 is provided with the guide groove 311 that the guide block 33 moves, the rear surface of positioning frame 3 is rotatably connected with two sets of guide block 33 screw connection two sets of guide block 33 are driven to move to middle simultaneously the two-way threaded rod 32, the inner wall of positioning frame 3 is provided with the space of the sliding slot 310 that two sets of guide frame 37 move.

[0031] Further, the inner wall upper portion of sliding slot 310 is slidably connected with guide frame 37, and multiple sets of guide rods 36 are driven to move to middle simultaneously, in two sets of guide frame 37, the guide rod 36 of top end and front end is slidably connected in the guide frame 37 of upper portion, the guide rod 36 of bottom end and rear end is slidably connected in another guide frame 37, so that multiple sets of guide rods 36 can be driven to move to middle simultaneously by two sets of guide frame 37 moving to middle, the rear surface of guide frame 37 is fixedly connected with guide block 33, and guide block 33 is driven to move, the inner wall middle portion of guide frame 37 is slidably connected with guide rod 36, and connecting rod 38 is driven to move to center, the bottom end outer wall of guide rod 36 is fixedly connected with connecting rod 38, and pressing plate 39 is driven to move to middle, the bottom end of connecting rod 38 is fixedly connected with the right part inclined surface of pipe sleeve 2, so that positioning frame 3 and positioning rod 31 are pulled to right with fixed ring 22, and pressing plate 39.

[0032] Referring to Figure 1 And Figure 3 The right side of fixed ring 22 is provided with sealing assembly, and sealing assembly includes rubber groove 24 and rubber pad 21, the sealing property of pipe body 1 and pipe sleeve 2 connection can be increased by rubber pad 21 piston connection in rubber groove 24, to further improve the effect of preventing leakage.

[0033] Referring to Figure 1 、 Figure 2 And Figure 4The right side of the connecting rod 38 is fixedly connected with the matching positioning groove 35, so that the connecting rod 38 drives the pressing plate 39 to move linearly to the center to clamp the right part of the pipe sleeve 2. The right upper part of the positioning frame 3 is provided with the positioning groove 35 for limiting the linear movement of the positioning block 34. The fixed ring 22 is fixedly connected to the left side of the outer wall thread of the pipe body 1. The outer wall of the fixed ring 22 is fixedly connected with the positioning rod 31 supporting the positioning frame 3 and is provided with multiple groups. The positioning frame 3 is provided in an inclined shape and is sleeved on the outer wall of the pipe sleeve 2. The inclined positioning frame 3 can drive two groups of guide frames 37 to move to the middle, so that multiple groups of pressing plates 39 can be driven to move to the middle at the same time and be clamped on the outer wall of the pipe sleeve 2. The outer wall of the pipe sleeve 2 is inclined, so that the fixed ring 22 is always pulled to the right, thereby reducing the loosening of the threaded connection between the pipe body 1 and the pipe sleeve 2 and improving the leakage prevention effect. Multiple positioning rods 31 are fixedly connected to the four corners of the inclined positioning frame 3. The guide block 33 is slidingly connected to the inner wall of the guide groove 311. The guide block 33 is threadedly connected to the outer wall upper thread of the bidirectional threaded rod 32. The pressing plate 39 is provided in an arc shape. The arc shape can increase the contact area with the outer wall of the pipe sleeve 2 and improve the pressing effect. The connecting rod 38 penetrates and is slidingly connected to the bottom of the guide frame 37.

[0034] Referring to Figure 1 , Figure 2 and Figure 4 , the positioning block 34 is slidingly connected to the inner wall of the positioning groove 35. The guide rod 36, the positioning block 34, the connecting rod 38, and the pressing plate 39 are provided with multiple groups, and the multiple groups of guide rods 36, positioning blocks 34, connecting rods 38, and pressing plates 39 are arranged in a ring array with the center point of the positioning frame 3 as the axis of symmetry. Through the multiple ring array arrangements, the clamping effect can be improved, thereby increasing the right pulling force and further improving the tightness of the connection between the pipe body 1 and the pipe sleeve 2. The guide frame 37 and the guide block 33 are provided with two groups, and the two groups of guide frames 37 and guide blocks 33 are symmetrically arranged with the center line of the inclined positioning frame 3 as the axis of symmetry.

[0035] Further, the two groups of guide frames 37 and bidirectional threaded rods 32 are provided in an inclined shape. The inclined guide frames 37 can simultaneously drive the two groups of guide rods 36 to move, thereby simultaneously driving the guide frames 37 to move to the middle through the bidirectional threaded rod 32, and further simultaneously driving multiple groups of pressing plates 39 to move to the middle and be clamped on the right inclined surface of the pipe sleeve 2, thereby improving the convenience of operation without the need for adjusting one by one.

[0036] Referring to Figure 1 and Figure 3, rubber pad 21 is set to T-shaped circular ring, by setting to T-shaped circular ring, can make the right part of T-shaped circular ring piston connected in rubber groove 24 inner wall, at the same time, the left part of T-shaped circular ring is connected with support ring 23, at the same time, increase the sealing property of pipe sleeve 2 and pipe body 1 connecting place, the right part of rubber pad 21 piston is connected in rubber groove 24 inner wall, rubber pad 21 is set to rubber material, which can increase the sealing property of piston connection, the left side of rubber pad 21 is fixedly connected with support rubber pad 21 support ring 23, support ring 23 is rotatably connected in the right side of fixed ring 22, pipe sleeve 2 and pipe body 1 are threadedly connected, through rubber pad 21 and rubber groove 24 piston connection, therefore, rubber pad 21 cannot rotate, thereby, support ring 23 is rotatably connected with fixed ring 22, so that rubber pad 21 piston can be connected in rubber groove 24 after and support ring 23 can rotate synchronously with pipe sleeve 2.

[0037] Working principle: in use, rotate pipe sleeve 2 and pipe body 1 threadedly connected, make rubber pad 21 and rubber groove 24 piston connection play sealing effect, because rubber pad 21 piston connection enters rubber groove 24 after, cannot rotate, thereby, support ring 23 synchronously rotates with rubber pad 21, rotates in the right side of fixed ring 22, guarantees the effectiveness of sealing in the process of pipe sleeve 2 rotation connection, further enhances the sealing property of pipe body 1 and pipe sleeve 2 connection, prevents water leakage, makes pipe body 1 and pipe sleeve 2 threadedly connected to form drain pipe.

[0038] At this time, the two-way threaded rod 32 is rotated, and since the guide blocks 33 are threadedly connected to the outer wall of the two-way threaded rod 32 at the upper threaded portion and are slidingly connected to the inner wall of the guide groove 311, the rotation of the two-way threaded rod 32 will cause the two groups of guide blocks 33 to move towards the middle at the same time, driving the guide frames 37 to slide in the sliding groove 310 of the inner wall of the positioning frame 3. With the movement of the guide blocks 33, the two groups of inclined guide frames 37 will move towards the middle, and since the guide rods 36 are slidingly connected in each group of guide frames 37, the outer wall of the bottom end of the guide rods 36 is fixedly connected with the connecting rod 38, and the bottom end of the connecting rod 38 is fixedly connected with the pressing plate 39, which is slidingly connected with the positioning block 34 in the positioning groove 35, so that the pressing plate 39 can only move linearly. Therefore, when the two groups of guide frames 37 move towards the middle at the same time, they will drive the guide rods 36 slidingly connected in the inclined guide frames 37 to move towards the middle at the same time, thereby causing the guide rods 36 to move towards the middle at the same time, and further causing the guide rods 36 to move towards the middle at the same time. The pressing plate 39 is clamped on the outer wall of the inclined portion of the pipe sleeve 2. By arranging the pressing plate 39 in an arc shape, the contact area with the outer wall of the pipe sleeve 2 is increased, the pressing effect is improved, and by pressing the pressing plate 39 on the right inclined portion of the pipe sleeve 2, the pressing plate 39 is moved to the right along the inclined portion, the positioning frame 3, the positioning rod 31 and the fixing ring 22 are pulled to the right, thereby pulling the pipe body 1 to the right to be tightly connected with the pipe sleeve 2, further improving the clamping effect and the pulling force to the right, so that the fixing ring 22 always pulls the pipe body 1 to the right, effectively reducing the loosening caused by thermal expansion and contraction at the threaded connection between the pipe body 1 and the pipe sleeve 2, thereby improving the leakage prevention effect.

[0039] Finally, it should be noted that: the above only describes the preferred embodiments of the present application, and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or make equivalent replacements to some technical features, as long as they are within the spirit and principles of the present application. Any modification, equivalent replacement, improvement, etc. made within the scope of the present application shall be included in the protection scope of the present application.

Claims

1. A leak-proof device for HVAC water supply and drainage pipes, comprising a pipe body (1), characterized in that: The outer right wall of the tube body (1) is threaded. A sleeve (2) is threaded to the threaded part of the outer right wall of the tube body (1). A tensioning assembly is provided between the tube body (1) and the sleeve (2). The tensioning assembly includes a fixing ring (22) and a positioning frame (3). A guide groove (311) is provided on the upper part of the rear surface of the positioning frame (3). A bidirectional threaded rod (32) is rotatably connected to the rear surface of the positioning frame (3). A sliding groove (310) is provided on the inner wall of the positioning frame (3). A guide frame (37) is slidably connected to the upper part of the inner wall of the sliding groove (310). A guide block (33) is fixedly connected to the rear surface of the guide frame (37). A guide rod (36) is slidably connected to the middle part of the inner wall of the guide frame (37). A connecting rod (38) is fixedly connected to the outer wall of the bottom end of the guide rod (36). A pressing plate (39) is fixedly connected to the bottom end of the connecting rod (38).

2. The leak-proof device for HVAC water supply and drainage pipes according to claim 1, characterized in that: A sealing assembly is provided on the right side of the fixing ring (22), the sealing assembly including a rubber groove (24) and a rubber pad (21).

3. The leak-proof device for HVAC water supply and drainage pipes according to claim 1, characterized in that: A positioning block (34) is fixedly connected to the right side of the connecting rod (38), and a positioning groove (35) is provided on the upper right side of the positioning frame (3).

4. A leak-proof device for HVAC water supply and drainage pipes according to claim 3, characterized in that: The fixing ring (22) is fixedly connected to the left side of the threaded part of the outer wall of the tube body (1). The outer wall of the fixing ring (22) is fixedly connected with a positioning rod (31) and multiple sets are provided. The positioning frame (3) is set in an inclined shape. Multiple sets of positioning rods (31) are fixedly connected to the four corners of the inclined positioning frame (3).

5. A leak-proof device for HVAC water supply and drainage pipes according to claim 4, characterized in that: The guide block (33) is slidably connected to the inner wall of the guide groove (311), the guide block (33) is threadedly connected to the upper thread of the outer wall of the bidirectional threaded rod (32), the pressing plate (39) is set in an arc shape, and the connecting rod (38) passes through and is slidably connected to the bottom of the guide frame (37).

6. A leak-proof device for HVAC water supply and drainage pipes according to claim 4, characterized in that: The positioning block (34) is slidably connected to the inner wall of the positioning groove (35). Multiple sets of the guide rod (36), positioning block (34), connecting rod (38), and pressing plate (39) are provided. The multiple sets of the guide rod (36), positioning block (34), connecting rod (38), and pressing plate (39) are arranged in a circular array with the center point of the positioning frame (3) as the axis of symmetry. Two sets of the guide frame (37) and guide block (33) are provided. The two sets of the guide frame (37) and guide block (33) are symmetrically arranged with the center line of the inclined positioning frame (3) as the axis of symmetry. Both sets of the guide frame (37) and the bidirectional threaded rod (32) are inclined.

7. A leak-proof device for HVAC water supply and drainage pipes according to claim 2, characterized in that: The rubber pad (21) is configured as a T-shaped ring, and the right piston of the rubber pad (21) is connected to the inner wall of the rubber groove (24).

8. A leak-proof device for HVAC water supply and drainage pipes according to claim 7, characterized in that: A support ring (23) is fixedly connected to the left side of the rubber pad (21), and the support ring (23) is rotatably connected to the right side of the fixed ring (22).

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