Stainless steel corrugated pipe connecting device

Abstract

The invention discloses a stainless steel corrugated pipe connecting device. The stainless steel corrugated pipe connecting device comprises a positioning frame arranged on a first pipe section in a sleeving mode, a locking component and a switching component. The locking component is composed of a plurality of locking assemblies which are arranged on the periphery of the first pipe section and connected with the positioning frame. The locking assembly comprises a connecting rod, a clamping block and a first elastic unit; the connecting rod is hinged to the positioning frame, and the other end is connected with the clamping block; the first elastic unit is arranged between the connecting rod and the positioning frame; the switching part is arranged on the positioning frame and connected with the connecting rods. The switching component drives the connecting rods to rotate and exert constraint on the connecting rods, so that the clamping blocks are far away from the pipe sections, a worker can conveniently insert the pipe sections, after insertion is completed, the worker relieves constraint of the switching component on the connecting rods, and under the action of the first elastic units, the clamping blocks are separated from the clamping blocks; the connecting rods drive the corresponding clamping blocks to be clamped in the pipe section inserting grooves and clamp the pipe sections, the risk that the pipe sections are separated when being pulled accidentally is reduced, and the pipeline connecting stability is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pipeline connection, in particular to a stainless steel corrugated pipe connecting device. BACKGROUND

[0002] With the increase of city gas popularization rate in China, gas safety problems are increasingly prominent, in order to effectively prevent and control gas leakage hazards, stainless steel corrugated pipe begins to gradually replace the traditional rubber hose.

[0003] One of the existing combined connection methods of stainless steel corrugated pipe for gas is to use an insertion type interface at one end of the pipeline to adapt to the existing gas pipeline, and the other end is fixed by threaded connection to fix the gas appliance, but this connection method is prone to accidental pulling during actual installation, which may cause the pipeline to separate, so that the pipeline connection stability is limited, and there is a safety risk. SUMMARY

[0004] The purpose of the present application is to solve the above problems, and provide a stainless steel corrugated pipe connecting device to improve the stability of the pipeline connection and reduce the safety risk.

[0005] To solve the above technical problems, the following technical scheme is adopted: a stainless steel corrugated pipe connecting device, comprising: a positioning frame, a locking component and a switching component arranged on a first pipe segment; The locking component is composed of a plurality of locking assemblies uniformly distributed around the first pipe segment and connected with the positioning frame; The locking assembly comprises a connecting rod, a clamping block and a first elastic unit; The connecting rod is hingedly arranged on the positioning frame, one end of the connecting rod is connected with the clamping block, and the connecting rod is used to drive the clamping block to move towards the direction close to or away from the pipe segment insertion slot; The clamping block corresponds to the slot of the pipe segment insertion slot, and each clamping block cooperates to clamp the second pipe segment; The first elastic unit is arranged between the connecting rod and the positioning frame, and is used to apply a pulling force to the connecting rod in the direction close to the pipe segment axis; The switching component is arranged on the positioning frame and connected with each connecting rod, and is used to drive each connecting rod to rotate to control the connection and separation of each clamping block and the pipe segment insertion slot.

[0006] Further, the switching component comprises a plurality of switching assemblies arranged on the positioning frame and corresponding to each connecting rod; The switching assembly comprises a switching unit, a pressing rod, a first transmission rod, a second transmission rod, a positioning block and a second elastic unit arranged on the positioning frame; The pressing rod and the first transmission rod are respectively slidably inserted into both ends of the switching unit; The pressing rods are connected with the retracted contact points and the extended contact points arranged in the switching units through the switching units, for adjusting the length of the extended ends of the first transmission rods; The second transmission rods are hingedly arranged between the extended ends of the first transmission rods and the connecting rods, and the first transmission rods drive the connecting rods to rotate through the second transmission rods; The positioning blocks are arranged on the positioning frames, and the extended ends of the first transmission rods slide through the positioning blocks; The second elastic units are arranged between the second transmission rods and the positioning blocks, for applying elastic force to the second transmission rods in a direction away from the positioning blocks.

[0007] Further, first adjusting rings connected with the pressing rods are arranged on the pipe segments, for driving the pressing rods to move synchronously.

[0008] Further, the clamping blocks are provided with constraint segments capable of being clamped on the corrugated segments of the second pipe segments.

[0009] Further, the positioning frames are provided with limiting components, including a second adjusting ring rotatably arranged on one end of the positioning frame close to the pipe segment insertion slot and a plurality of limiting pins; The limiting pins are circumferentially distributed on the second adjusting ring and correspond to the first transmission rods one by one, and the limiting pins are detachably arranged in the corresponding first transmission rods, for limiting the rotation thereof; The rotating connection of the second adjusting ring is further provided with a torsional spring, for providing torsional force for the limiting pins to move in a direction close to the corresponding first transmission rods.

[0010] Further, the one end of the positioning frame close to the pipe segment insertion slot is provided with a sealing sleeve, and the sealing sleeve is arranged on the first pipe segment and covers the insertion slot.

[0011] Further, the connecting rods are provided with first abutting blocks; The positioning frames are provided with clamping components, including two clamping plates and two third elastic units which are respectively arranged on the two sides of the positioning frames; The clamping plates are arranged in an arc shape and are oppositely distributed, and the clamping plates are further provided with second abutting blocks which are detachably connected with the corresponding first abutting blocks; The corresponding connecting rods abut against each other through the corresponding abutting blocks to drive the corresponding clamping plates to clamp the sealing sleeve and the first pipe segment; The third elastic units are arranged between the corresponding clamping plates and the positioning frames, for applying elastic force to the clamping plates in a direction away from the axis of the pipe segment.

[0012] The beneficial effects of the present application are embodied in that: the switching component drives each connecting rod to rotate and applies constraint to each connecting rod, so as to make each clamping block away from the pipe section, facilitating the staff to insert the pipe section, after the insertion is completed, the staff releases the constraint of the switching component to each connecting rod, at this time, each connecting rod drives the corresponding clamping block to be clamped in the pipe section insertion slot and clamps the corresponding pipe section under the action of each first elastic unit, reducing the risk of separation of the pipe section when subjected to accidental pulling, and improving the pipeline connection stability. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a first perspective view of the stainless steel corrugated pipe connecting device; Figure 2 It is a sectional view of the stainless steel corrugated pipe connecting device; Figure 3 It is Figure 2 It is an enlarged view of A in the middle; Figure 4 It is a second perspective view of the stainless steel corrugated pipe connecting device; Figure 5 It is Figure 4 It is an enlarged view of B in the middle; Figure 6 It is a second perspective view of the stainless steel corrugated pipe connecting device.

[0014] In the figure: 01, first pipe section; 02, second pipe section; 1, positioning frame; 2, locking component; 21, connecting rod; 211, first abutting block; 22, clamping block; 221, constraint section; 23, first elastic unit; 3, switching component; 31, switching unit; 32, pressing rod; 33, first transmission rod; 34, second transmission rod; 35, positioning block; 36, second elastic unit; 4, first adjusting ring; 5, limiting component; 51, second adjusting ring; 52, limiting pin; 6, sealing sleeve; 7, clamping component; 71, clamping plate; 72, second abutting block; 73, third elastic unit. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The embodiments in the present application and the features in the embodiments can be combined with each other without conflict. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0016] Please refer to Figures 1-6The application discloses a stainless steel corrugated pipe connecting device, which comprises a positioning frame 1 sleeved on a first pipe section 01, a locking component 2 and a switching component 3. The locking component 2 is composed of a plurality of locking assemblies which are circumferentially and uniformly distributed around the first pipe section 01 and are connected with the positioning frame 1. The locking assembly comprises a connecting rod 21, a clamping block 22 and a first elastic unit 23. The connecting rod 21 is hingedly arranged at one end of the positioning frame 1 away from the pipe section insertion slot, and the other end is connected with the clamping block 22, and is used for driving the clamping block 22 to move in the direction close to or away from the pipe section insertion slot. The clamping block 22 corresponds to the slot of the pipe section insertion slot, and each clamping block 22 is matched to clamp each pipe section. The first elastic unit 23 is arranged between the connecting rod 21 and the positioning frame 1, and is used for applying a pulling force to the connecting rod 21 in the direction close to the pipe section axis. The switching component 3 is arranged on the positioning frame 1 and connected with each connecting rod 21, and is used for driving each connecting rod 21 to rotate in the direction away from the first pipe section 01, so as to control the connection and separation of each clamping block 22 and the pipe section insertion slot.

[0017] In the specific implementation, before inserting the pipe, the worker first sleeves the positioning frame 1 on the first pipe section 01 and connects it with the first pipe section 01, then drives each connecting rod 21 to rotate in the direction away from the axis of the first pipe section 01 through the switching component 3, each first elastic unit 23 is stretched, then the first pipe section 01 is inserted with the second pipe section 02, at this time, each clamping block 22 corresponds to the pipe section insertion slot, then the worker drives each connecting rod 21 to be released from the constraint through the switching component 3, at this time, each first elastic unit 23 loses the constraint and drives the corresponding clamping block 22 to rotate in the direction close to the axis of the first pipe section 01 through the corresponding connecting rod 21, until each clamping block 22 is clamped in the pipe section insertion slot, and each clamping block 22 is matched to apply a clamping force to each pipe section in the direction close to the pipe section axis, so as to reduce the accidental falling of the pipe section. When the connection needs to be released, each clamping block 22 is separated from the corresponding pipe section and exits the pipe section insertion slot through the switching component 3.

[0018] In the specific implementation, before inserting the pipe, the worker first sleeves the positioning frame 1 on the first pipe section 01 and connects it with the first pipe section 01, then drives each connecting rod 21 to rotate in the direction away from the axis of the first pipe section 01 through the switching component 3, each first elastic unit 23 is stretched, then the first pipe section 01 is inserted with the second pipe section 02, at this time, each clamping block 22 corresponds to the pipe section insertion slot, then the worker drives each connecting rod 21 to be released from the constraint through the switching component 3, at this time, each first elastic unit 23 loses the constraint and drives the corresponding clamping block 22 to rotate in the direction close to the axis of the first pipe section 01 through the corresponding connecting rod 21, until each clamping block 22 is clamped in the pipe section insertion slot, and each clamping block 22 is matched to apply a clamping force to each pipe section in the direction close to the pipe section axis, so as to reduce the accidental falling of the pipe section.

[0019] Preferably, the first elastic unit 23 can adopt a tension spring in the prior art.

[0020] It should be noted that the positioning frame 1 is provided with a protective cover for covering and locking the locking member 2, so as to reduce the influence of external factors on the locking member 2.

[0021] In an embodiment, the switching member 3 comprises a plurality of switching assemblies provided on the positioning frame 1 and corresponding to the connecting rods 21 respectively. The switching assembly comprises a switching unit 31 provided on the positioning frame 1. The switching unit 31 is slidably provided with a pressing rod 32 at one end close to the pipe segment insertion slot, and is slidably provided with a first transmission rod 33 at the other end. The first transmission rod 33 is capable of being connected with the retracted contact point and the extended contact point in the switching unit 31 respectively, and the length of the extended end of the first transmission rod 33 will change accordingly when the first transmission rod 33 is connected with the corresponding contact point in the switching unit 31. The pressing rod 32 is detachably connected with the first transmission rod 33, and is used to drive the first transmission rod 33 to move and switch the connection posture of the first transmission rod 33 to the corresponding contact point in the switching unit 31. The first transmission rod 33 is hingedly provided with a second transmission rod 34 between the first transmission rod 33 and the connecting rod 21, and the connecting rod 21 is driven to rotate by the second transmission rod 34 when the first transmission rod 33 moves. The positioning frame 1 is further provided with a positioning block 35, and the extended end of the first transmission rod 33 is slidably provided in the positioning block 35. The second transmission rod 34 is provided with a second elastic unit 36 between the second transmission rod 34 and the positioning block 35, and the second elastic unit 36 is used to apply an elastic force to the second transmission rod 34 in a direction away from the positioning block 35.

[0022] In this way, before the pipe segment is installed, the staff presses each pressing rod 32, at this time, each pressing rod 32 drives the corresponding first transmission rod 33 to move away from the pipe segment insertion slot, until the first transmission rod 33 is separated from the retracted contact point and connected with the extended contact point in the switching unit 31, at this time, the first transmission rod 33 further extends out of the switching unit 31, the second elastic unit 36 is compressed, and the first transmission rod 33 extends out while applying a pushing force to the connecting rod 21 in a direction away from the center axis of the pipe segment through the second transmission rod 34, at this time, each clamping block 22 is away from the pipe segment insertion slot, which is convenient for the staff to perform the insertion work. When the pipe segment is inserted, the staff presses each pressing rod 32 again, each pressing rod 32 drives the corresponding first transmission rod 33 to separate from the extended contact point, at this time, each second elastic unit 36 loses the constraint and drives the corresponding second transmission rod 34 to retract into the switching unit 31 until it is connected with the retracted contact point, and each first elastic unit 23 loses the constraint to drive the corresponding clamping block 22 to clamp the pipe segment. When it is necessary to release the connection of the pipe segment, the staff presses each pressing rod 32 again to connect each second transmission rod 34 with the corresponding extended contact point, which is convenient to operate.

[0023] It should be noted that the structure and function of the switching unit 31 and the connection relationship between the switching unit 31 and the first transmission rod 33 can refer to the pressing assembly in the existing technology of the pressing ball pen, and the structure and function of the pressing assembly are the common knowledge of the workers in the field, so it is not described in detail here.

[0024] Preferably, the second elastic unit 36 can adopt the spring in the existing technology.

[0025] In an embodiment, a first adjusting ring 4 connected with each pressing rod 32 is further sleeved on the pipe segment, for driving each pressing rod 32 to move synchronously.

[0026] In this way, the worker can drive each pressing rod 32 to move together by pushing the adjusting ring, without the worker pressing each pressing rod 32 in sequence, further simplifying the work.

[0027] In an embodiment, each clamping block 22 is provided with a constraint segment 221, when each clamping block 22 is clamped in the pipe segment insertion slot, the constraint end thereon can be inserted into the corrugated segment groove of the second pipe segment 02, to improve the axial constraint on the pipeline, further improving the connection stability.

[0028] In an embodiment, an arc-shaped through hole is formed on each switching unit 31, and the insertion end of each pressing rod 32 is provided with a limiting hole corresponding to the through hole; The positioning frame 1 is provided with a limiting component 5, including a second adjusting ring 51 rotatably sleeved on one end of the positioning frame 1 close to the pipe segment insertion slot; The second adjusting ring 51 is circumferentially provided with a plurality of limiting pins 52, each limiting pin 52 is arranged in an “L” shape and corresponds to each limiting hole on each pressing rod 32, and each limiting pin 52 can be detachably inserted into the corresponding through hole and limiting hole, for constraining the movement of the pressing rod 32; The rotating connection of the second adjusting ring 51 is further provided with a torsional spring, for providing torsional force for the movement of each limiting pin 52 towards the corresponding pressing rod 32.

[0029] In this way, when it is necessary to adjust the posture of the first transmission rod 33, the worker rotates the second adjusting ring 51 to make each limiting pin 52 exit the corresponding limiting hole and separate from the pressing rod 32, at this time each pressing rod 32 loses the constraint and the torsional spring is compressed, the worker drives each pressing rod 32 to move through the first adjusting ring 4; When each first transmission rod 33 is switched to a predetermined posture, the worker drives each pressing rod 32 to move by pushing the first adjusting ring 4, until each limiting hole is coaxial with the corresponding through hole, at this time the torsional spring loses the constraint to drive each limiting pin 52 to be inserted on the corresponding pressing rod 32 again, to avoid the accidental movement of the pressing rod 32 to switch the posture of the first transmission rod.

[0030] In an embodiment, the clamping surface of each clamping block 22 is provided with a rubber layer for filling the gap; The positioning frame 1 is provided with a sealing sleeve 6 near one end of the pipe segment insertion slot, the sealing sleeve 6 is annular and covers the pipe segment insertion slot, a plurality of openings are formed in the sealing sleeve 6 for clamping the second pipe segment 02 by the clamping blocks 22, and the sealing sleeve 6 cooperates with the clamping blocks 22 to improve the sealing performance of the pipe segment insertion slot.

[0031] In this way, after the insertion of two adjacent pipe segments is completed, the sealing sleeve 6 covers the pipe segment insertion slot to preliminarily fill the gap at the pipe segment connection, and then the clamping blocks 22 are inserted into the pipe segment insertion slot and clamp the pipe segments, the rubber layer on the clamping blocks 22 is compressed to further fill the gap at the pipe segment connection and improve the sealing performance, thereby reducing air leakage. It should be noted that when the clamping blocks 22 clamp the second pipe segment 02, the corresponding surfaces thereof are in contact with the sealing sleeve 6 and apply a clamping force to the first pipe segment 01 in the direction of the pipe segment axis.

[0032] In an embodiment, the corresponding connecting rod 21 is provided with a first abutting block 211. The positioning frame 1 is provided with a clamping component 7, which includes two clamping plates 71 that are respectively slidably arranged on the two sides of the positioning frame 1, each clamping plate 71 is arranged in an arc shape and is oppositely distributed, and the clamping plate 71 is further provided with a second abutting block 72 that is separably connected with the corresponding first abutting block 211, when the first abutting block 211 is connected with the second abutting block 72, the corresponding connecting rod 21 applies a pushing force to the corresponding clamping plate 71 in the direction of approaching the pipe segment axis. Each clamping plate 71 is provided with a third elastic unit 73 between the clamping plate 71 and the positioning frame 1, which is used to apply an elastic force to the clamping plate 71 in the direction of away from the pipe segment axis.

[0033] In this way, when the corresponding connecting rod 21 rotates in the direction of approaching the pipe segment axis, the first abutting block 211 thereon is in contact with the corresponding second abutting block 72, as the connecting rod 21 continues to rotate, the connecting rod 21 applies a pressure to the corresponding clamping plate 71 in the direction of approaching the pipe segment axis through the connection between the abutting blocks, at this time, each third elastic unit 73 is stretched, until each clamping plate 71 presses the sealing sleeve 6, the sealing sleeve 6 is deformed under pressure to further fill the gap at the pipe segment insertion slot, thereby improving the sealing performance of the sealing sleeve 6, and at the same time, each clamping plate 71 cooperates to apply a clamping force to the connection of the first pipe segment 01 in the direction of approaching the pipe segment axis, thereby further improving the stability of the pipe segment connection. When the connecting rod 21 rotates upward until each first abutting block 211 is separated from the corresponding second abutting block 72, each third elastic unit 73 loses the constraint to drive the corresponding clamping plate 71 to separate from the sealing sleeve 6, thereby releasing the constraint of each clamping plate 71 to the pipe segment connection.

[0034] It should be noted that if the embodiments of the present application involve directionality indication (such as up, down, left, right, front, back, etc.), the directionality indication is only used to explain the relative position relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directionality indication also changes accordingly.

[0035] In addition, if the embodiments of the present application involve descriptions such as "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of a person skilled in the art, and when the combination of technical solutions contradicts each other or cannot be realized, it should be considered that the combination of technical solutions does not exist and is not within the protection scope of the present application.

[0036] In addition, "multiple" means more than two.

[0037] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A stainless steel corrugated pipe coupling device, characterized by, The utility model relates to a pipe segment inserting and pulling-out device, including: Positioning frame (1) and locking component (2) and switching component (3) are set on the first pipe segment (01); The locking component (2) is formed by multiple locking assemblies that are evenly distributed around the first pipe segment (01) and are all connected with the positioning frame (1); The locking assembly includes connecting rod (21), clamping block (22) and first elastic unit (23); The connecting rod (21) is hingedly arranged on the positioning frame (1), one end of the connecting rod (21) is connected with the clamping block (22), and the connecting rod (21) is used to drive the clamping block (22) to move towards the direction of approaching or moving away from the pipe segment inserting groove; The clamping block (22) corresponds to the notch of the pipe segment inserting groove, and each clamping block (22) is matched to clamp the second pipe segment (02); The first elastic unit (23) is arranged between the connecting rod (21) and the positioning frame (1), and is used to apply a pulling force to the connecting rod (21) in the direction of approaching the pipe segment axis center; The switching component (3) is arranged on the positioning frame (1) and connected with each connecting rod (21), and is used to drive each connecting rod (21) to rotate to control the connection and separation of each clamping block (22) and the pipe segment inserting groove.

2. A stainless steel corrugated pipe coupling according to claim 1 wherein: The switching component (3) includes multiple switching assemblies arranged on the positioning frame (1) and corresponding to each connecting rod (21); The switching assembly includes switching unit (31), pressing rod (32), first transmission rod (33), second transmission rod (34), positioning block (35) and second elastic unit (36) arranged on the positioning frame (1); The pressing rod (32) and the first transmission rod (33) are respectively slidably inserted into both ends of the switching unit (31); The pressing rod (32) is connected with the first transmission rod (33) through the switching unit (31) and the retracted contact point and the extended contact point arranged in the switching unit (31), and is used to adjust the length of the extended end of the first transmission rod (33); The second transmission rod (34) is hingedly arranged between the extended end of the first transmission rod (33) and the connecting rod (21), and the first transmission rod (33) drives the connecting rod (21) to rotate through the second transmission rod (34); The positioning block (35) is arranged on the positioning frame (1), and the extended end of the first transmission rod (33) is slidably arranged through the positioning block (35); The second elastic unit (36) is arranged between the second transmission rod (34) and the positioning block (35), and is used to apply an elastic force to the second transmission rod (34) in the direction away from the positioning block (35).

3. A stainless steel corrugated pipe coupling according to claim 2 wherein: A first adjusting ring (4) connected with each pressing rod (32) is further arranged on the pipe segment, and is used to drive each pressing rod (32) to move synchronously.

4. A stainless steel corrugated pipe coupling according to claim 1 wherein: Each clamping block (22) is provided with a constraint section (221) capable of being clamped on the corrugated section of the second pipe segment (02).

5. A stainless steel corrugated pipe coupling according to claim 2 wherein: The positioning frame (1) is provided with a limiting component (5), including a second adjusting ring (51) rotatably arranged on one end of the positioning frame (1) close to the pipe segment inserting groove and multiple limiting pins (52). Each of the limiting pins (52) is circumferentially distributed on the second adjusting ring (51) and corresponds to each of the first transmission rods (33), each of the limiting pins (52) is detachably arranged in the corresponding first transmission rod (33) for restricting rotation thereof; The rotating connection portion of the second adjusting ring (51) is further provided with a torsion spring for providing torsion force for moving each of the limiting pins (52) to the direction close to the corresponding first transmission rod (33).

6. A stainless steel corrugated pipe coupling according to claim 4 wherein: The positioning frame (1) is provided with a sealing sleeve (6) at one end close to the pipe segment insertion slot, the sealing sleeve (6) is sleeved on the first pipe segment (01) and covers the insertion slot.

7. A stainless steel corrugated pipe coupling according to claim 6 wherein: Corresponding to the connecting rod (21), a first abutting block (211) is arranged; The positioning frame (1) is provided with a clamping component (7) including two clamping plates (71) and two third elastic units (73) which are respectively slidably arranged on both sides of the positioning frame (1); Each of the clamping plates (71) is arranged in an arc shape and oppositely distributed, and is further provided with a second abutting block (72) which is detachably connected with the corresponding first abutting block (211); Corresponding to the connecting rod (21), the abutting blocks abut each other to drive the corresponding clamping plates (71) to clamp the sealing sleeve (6) and the first pipe segment (01); Each of the third elastic units (73) is arranged between the corresponding clamping plate (71) and the positioning frame (1) for applying elastic force to the clamping plate (71) in the direction away from the axis of the pipe segment.

Images