A pipe connection fixing device

Abstract

The present invention relates to the technical field of pipeline fixing, and specifically to a pipeline connection fixing device, comprising two half clamps symmetrically arranged in an upper and lower manner, a semicircular groove being arranged on the half clamp, the two half clamps being used to fix the pipeline connection, a locking piece being arranged on the left and right sides of the half clamp, the locking piece being used to lock the two half clamps, two arc sliding tubes symmetrically arranged in the half clamp front and back, the distances between the two ends of the arc sliding tube and the front end of the half clamp being different, the arc sliding tube being equidistantly connected with a protruding opening connected with the semicircular groove, an arc connecting plate being slidably connected in the arc sliding tube, a sliding block being arranged on the arc connecting plate and cooperating with the protruding opening, a protruding abutting plate being arranged on the side of the sliding block close to the semicircular groove, a plurality of friction protrusions being evenly arranged on the protruding abutting plate, the two ends of the protruding abutting plate being rotatably connected with the sliding block through a connecting rod, and a baffle being arranged on one side of the protruding opening in the arc sliding tube, the present invention can adapt to pipelines of different sizes.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline fixing, and in particular to a pipeline connection fixing device. Background Art

[0002] In the fuel cell test bench, since the pipe orifice layouts of the humidifiers to be tested are all different, various adapter elbows or direct pipe connections are generally required. In certain cases, two hoses may be spliced ​​together, and a clamp is used in the middle to lock and fix the connection between the two pipes. However, repeated installation and a certain pressure in the pipeline will make this locking device prone to damage, making it difficult to maintain continuous use performance.

[0003] For example, on March 1, 2017, a patent with publication number CN105526422A, entitled "A pipe fixing part", was disclosed. The patent includes an annular body with an opening, wherein the opening of the annular body is provided with a bolt hole for fixing, the interior of the annular body is provided with a protruding connecting part, the connecting part is provided with an anti-slip pad, the connecting part is provided with an inclined groove, the anti-slip pad and the protruding connecting part are connected with an oblique wedge, the middle part of the protruding connecting part is provided with a through hole, which is riveted to the annular body. The invention is convenient for fixing the pipe, the pipe is not easy to rotate in the fixing part, and it is convenient for maintenance and disassembly; however, the applicant found that the fixing part is only suitable for one size of connection, and cannot be adapted when the pipe size changes, and the adaptation flexibility is insufficient. Summary of the invention

[0004] In view of this, the purpose of the present invention is to provide a pipe joint fixing device to solve the problem of inability to adapt and insufficient flexibility in adaptation when the pipe size changes.

[0005] Based on the above purpose, the present invention provides a pipe connection fixing device, including two half clamps symmetrically arranged in the upper and lower parts, the half clamps are provided with semicircular grooves, and the walls of the semicircular grooves are evenly provided with a plurality of granular protrusions, the two semicircular grooves are arranged opposite to each other, and the two half clamps are used to fix the pipe connection, and locking pieces are provided on the left and right sides of the half clamps, and the locking pieces are used to lock the two half clamps, and two arc-shaped sliding tubes are symmetrically arranged in the front and back of the half clamps, and the two ends of the arc-shaped sliding tubes are at different distances from the front end of the half clamps, and the arc-shaped sliding tubes are evenly spaced to be connected with extension ports connected to the semicircular grooves, and an arc-shaped connecting plate is slidably connected in the arc-shaped sliding tube, and a sliding block matched with the extension port is provided on the arc-shaped connecting plate, and the sliding block is close to One side of the semicircular groove is provided with a protruding abutment plate, and a plurality of friction protrusions are evenly provided on the protruding abutment plate, and two ends of the protruding abutment plate are rotatably connected to the slider through a connecting rod, and a baffle is provided on the arc sliding tube at one side of the protruding port, and the baffle is provided on the side of the protruding port close to the middle position of the two arc connecting plates, and a driving member for controlling the arc connecting plate to slide in the arc sliding tube is provided on the half clamp, and the driving member controls the arc connecting plate to slide in one direction in the arc sliding tube so that the slider moves close to the baffle direction, and when the protruding abutment plate contacts the baffle, the driving member continues to control the movement of the arc connecting plate so that one end of the protruding abutment plate abuts against the baffle and protrudes from the protruding port, so as to facilitate the control of the protruding abutment plate to clamp pipes of different sizes in the semicircular groove.

[0006] Optionally, a middle protective layer arranged on the groove wall of the semicircular groove is arranged between the two arc-shaped sliding tubes on the same half clamp, a waterproof layer is arranged on the middle protective layer, and elastic protrusion layers are arranged on both sides of the waterproof layer.

[0007] Optionally, the connecting rod and the sliding block are rotationally connected via a rotating shaft, and a first torsion spring is provided on the rotating shaft.

[0008] Optionally, the driving member includes an arc-shaped through hole opened on the outer wall of the semi-clamp and connected with the arc-shaped sliding tube, the semi-clamp is provided with a movable handle penetrating the arc-shaped through hole and connected to the arc-shaped connecting plate, the top of the movable handle is provided with a slot, a locking button is provided in the slot, a plurality of locking holes are provided at intervals on both side walls of the arc-shaped through hole, side grooves connected with the slot are provided on the front and rear sides of the movable handle, and an extension rod cooperating with the locking hole is provided in the side groove.

[0009] Optionally, pistons are provided on one side of the extension rod close to the locking button and on the lower end of the locking button.

[0010] Optionally, the driving member includes a driving motor arranged on the half clamp, the output end of the driving motor is connected to a spool, a traction wire is wound on the spool, one end of the traction wire is connected to the spool, the other end of the traction wire is connected to the arc-shaped connecting plate, and one end of the arc-shaped connecting plate is connected to the end wall of the arc-shaped sliding tube via an elastic spring.

[0011] Optionally, the driving member is a driving telescopic rod disposed on the half clamp, the driving telescopic rod is connected to the arc-shaped connecting plate, and the driving telescopic rod telescopes to control the arc-shaped connecting plate to move left and right in the arc-shaped sliding tube.

[0012] Optionally, the locking member includes a bolt passing through a threaded hole on the half clamp, and a nut is threadedly connected to the bolt.

[0013] Optionally, the locking member includes a sub-clamp and a mother clamp respectively located on the two half clamps, and the sub-clamp and the mother clamp are cooperated to lock the two half clamps, and the sub-clamp and the mother clamp are respectively a clamping slot and a clamping plate, wherein both side walls of one half clamp are provided with a clamping slot, and both side walls of the other half clamp are rotatably connected with a clamping plate through a rotating shaft, a second torsion spring is provided on the rotating shaft, and a clamping protrusion cooperating with the clamping slot is provided on the clamping plate.

[0014] The beneficial effects of the present invention are as follows: a pipe connection fixing device provided by the present invention, when the pipe connection needs to be fixed, the pipe connection is placed between the two half clamps, the locking member is used to lock the two half clamps, and then check whether the two half clamps are fixed to the pipe connection. If not, the driving member is controlled, and the driving member controls the arc connecting plate to slide in one direction in the arc sliding tube so that the sliding block moves close to the baffle direction. When the extended abutment plate contacts the baffle, the driving member continues to control the movement of the arc connecting plate so that one end of the extended abutment plate abuts against the baffle and extends out of the extended opening, which is convenient for controlling the extended abutment plate to clamp pipes of different sizes in the semicircular groove. It can adapt to pipes of different sizes, has high flexibility, and is convenient for users to use. In addition, the connection of the two pipes is located between the two arc sliding tubes on the same half clamp. During the clamping process, the extended abutment plate moves toward between the two arc sliding tubes, which is convenient for reducing the risk of the two pipes detaching from each other and is convenient for fixing the connection of the two pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the internal structure of the present invention; Figure 3 for Figure 2 A schematic diagram of the enlarged structure at A in the middle; Figure 4 It is a schematic diagram of the top view of the half clamp of the present invention.

[0017] In the figure: 1, half clamp; 2, locking piece; 3, arc-shaped sliding tube; 4, extension opening; 5, slider; 6, connecting rod; 7, extension plate; 8, baffle; 9, arc-shaped connecting plate; 10, semicircular groove; 11, moving handle; 12, arc-shaped through hole; 13, locking button; 14, extension rod; 15, locking hole. DETAILED DESCRIPTION

[0018] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0019] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not represent any order, quantity or importance, but are only used to distinguish different components. "Including" or "comprising" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connecting" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0020] like Figures 1 to 4As shown, a pipe connection fixing device comprises two half clamps 1 symmetrically arranged in the upper and lower parts, the half clamps 1 are provided with a semicircular groove 10, and a plurality of granular protrusions are evenly arranged on the groove wall, the two semicircular grooves 10 are arranged facing each other, the two half clamps 1 are used to fix the pipe connection, the pipe passes through the two semicircular grooves 10, and locking pieces 2 are arranged on the left and right sides of the half clamps 1, and the locking pieces 2 are used to lock the two half clamps 1, and two arc-shaped sliding tubes 3 symmetrically arranged in the front and back of the half clamps 1, the distances between the two ends of the arc-shaped sliding tubes 3 and the front end of the half clamps 1 are different, and the arc-shaped sliding tubes 3 are evenly spaced to be connected with extension ports 4 connected with the semicircular grooves 10, and the arc-shaped sliding tubes 3 are slidably connected with an arc-shaped connecting plate 9, and the arc-shaped connecting plate 9 is provided with a slider 5 matched with the extension port 4, and the slider 5 is close to the A protruding abutment plate 7 is provided on one side of the semicircular groove 10, and a plurality of friction protrusions are evenly provided on the protruding abutment plate 7. Both ends of the protruding abutment plate 7 are rotatably connected to the slider 5 through a connecting rod 6. A baffle plate 8 is provided on one side of the protruding port 4 in the arc-shaped sliding tube 3, and the baffle plate 8 is provided on the side of the protruding port 4 close to the middle position of the two arc-shaped connecting plates 9. A driving member for controlling the arc-shaped connecting plate 9 to slide in the arc-shaped sliding tube 3 is provided on the half clamp 1. The driving member controls the arc-shaped connecting plate 9 to slide in one direction in the arc-shaped sliding tube 3, so that the slider 5 moves close to the baffle plate 8. When the protruding abutment plate 7 contacts the baffle plate 8, the driving member continues to control the movement of the arc-shaped connecting plate 9, so that one end of the protruding abutment plate 7 abuts against the baffle plate 8 and protrudes from the protruding port 4, so as to facilitate the control of the protruding abutment plate 7 to clamp pipes of different sizes in the semicircular groove 10.

[0021] When the pipe connection needs to be fixed, the pipe connection is placed between the two half clamps 1, and the locking member 2 is used to lock the two half clamps 1. Then check whether the two half clamps 1 are fixed to the pipe connection. If not, control the driving member, and the driving member controls the arc connecting plate 9 to slide in one direction in the arc sliding tube 3 to move the slider 5 close to the baffle 8. When the extended abutment plate 7 contacts the baffle 8, the driving member continues to control the arc connecting plate 9 to move, so that the extended abutment plate 7 extends out of the extended port 4 at one end thereof abutting against the baffle 8, so as to control the extended abutment plate 7 to clamp pipes of different sizes in the semicircular groove 10. The connection of the two pipes is located between the two arc sliding tubes 3 on the same half clamp 1. During the clamping process, the extended abutment plate 7 moves toward between the two arc sliding tubes 3, so as to reduce the risk of the two pipes detaching from each other and fix the connection of the two pipes.

[0022] A middle protective layer arranged on the groove wall of the semicircular groove 10 is arranged between the two arc-shaped sliding tubes 3 on the same half clamp 1, a waterproof layer is arranged on the middle protective layer, and elastic protrusion layers are arranged on both sides of the waterproof layer.

[0023] The connecting rod 6 is rotatably connected to the slider 5 via a rotating shaft, and a first torsion spring is provided on the rotating shaft to accelerate the efficiency of extending the abutment plate 7 to be received in the arc-shaped slide tube 3, so as to facilitate the replacement of the half clamp 1 or the pipe connection.

[0024] The driving member includes an arc-shaped through hole 12 opened on the outer wall of the semi-clamp 1 and connected to the arc-shaped slide tube 3. The semi-clamp 1 is provided with a moving handle 11 that penetrates the arc-shaped through hole 12 and is connected to the arc-shaped connecting plate 9. The top of the moving handle 11 is provided with a slot, and a locking button 13 is provided in the slot. A plurality of locking holes 15 are provided at intervals on the two side walls of the arc-shaped through hole 12. The front and rear sides of the moving handle 11 are provided with side slots connected to the slot, and a protruding rod 14 is provided in the side slot to cooperate with the locking hole 15. , swing the moving handle 11 left and right to control the arc-shaped connecting plate 9 to move left and right in the arc-shaped sliding tube 3. When the arc-shaped connecting plate 9 moves to a suitable position, the abutment plate 7 is extended to clamp the pipe connection, and the locking button 13 is pressed downward. The two extending rods 14 move in opposite directions and are inserted into the corresponding locking holes 15. At this time, the moving handle 11 will not move. When the half clamp 1 or the pipe connection needs to be replaced, the locking button 13 is pulled upward, and the two extending rods 14 move toward each other and withdraw from the corresponding locking holes 15, which is convenient for the subsequent replacement of the half clamp 1 or the pipe connection.

[0025] A piston is provided on one side of the extension rod 14 close to the locking button 13 and on the lower end of the locking button 13. A sealing gasket is provided on the outer ring of the piston to seal the air connected between the side groove and the slot, and to drive the two extension rods 14 to move in opposite directions when the locking button 13 moves downward.

[0026] The above-mentioned driving member can be replaced, and the driving member can be a driving motor arranged on the half clamp 1, the output end of the driving motor is connected to a bobbin, a traction line is wound on the bobbin, one end of the traction line is connected to the bobbin, and the other end of the traction line is connected to the arc-shaped connecting plate 9, one end of the arc-shaped connecting plate 9 is connected to the end wall of the arc-shaped sliding tube 3 through an elastic spring, and when the driving member is started and the driving motor starts to drive the bobbin to rotate in one direction, the traction line is wound onto the bobbin, driving the arc-shaped connecting plate 9 to move in the arc-shaped sliding tube 3, so that the slider 5 moves close to the baffle 8, and when the extended abutment plate 7 contacts the baffle 8, the driving member is started and the driving motor starts to drive the bobbin to rotate in one direction, the traction line is wound onto the bobbin, driving the arc-shaped connecting plate 9 to move in the arc-shaped sliding tube 3, so that the slider 5 moves in the direction close to the baffle 8, and when the extended abutment plate 7 contacts the baffle 8, the driving member is started and the driving motor starts to drive the bobbin to rotate in one direction, the traction line is wound onto the bobbin, driving the arc-shaped connecting plate 9 to move in the arc-shaped sliding tube 3, The movable part continues to control the movement of the arc-shaped connecting plate 9, so that one end of the extended abutment plate 7 abuts against the baffle 8 and extends out of the extending port 4, which is convenient for controlling the extended abutment plate 7 to clamp pipes of different sizes in the semicircular groove 10. When the driving motor starts to drive the spool to rotate in the other direction, the other direction is opposite to one direction, and the spool unwinds the traction line on the spool, driving the arc-shaped connecting plate 9 to move in the arc-shaped sliding tube 3, so that the slider 5 moves away from the baffle 8, so that the extended abutment plate 7 contacts with the baffle 8 and becomes away from the baffle 8, and does not contact with the baffle 8. The extended abutment plate 7 moves from the extending port 4 to the arc-shaped sliding tube 3, which is convenient for the storage of the extended abutment plate 7.

[0027] The above-mentioned driving member can also be replaced. The driving member can also be a driving telescopic rod set on the half clamp 1, and the driving telescopic rod is connected to the arc connecting plate 9. The driving telescopic rod telescopes and controls the arc connecting plate 9 to move left and right in the arc sliding tube 3.

[0028] In order to facilitate locking of the two half clamps 1 , the locking member 2 includes a bolt penetrating through a threaded hole on the half clamp 1 , and a nut is threadedly connected to the bolt.

[0029] The above-mentioned locking piece 2 is replaceable. In order to facilitate the locking of the two half clamps 1, the locking piece 2 can be a sub-clamp and a mother clamp respectively located on the two half clamps 1. The sub-clamp and the mother clamp are cooperated to lock the two half clamps 1. The sub-clamp and the mother clamp can be a clamping slot and a clamping plate respectively. Both side walls of one half clamp 1 are provided with a clamping slot, and both side walls of the other half clamp 1 are rotatably connected with a clamping plate through a rotating shaft. A second torsion spring is provided on the rotating shaft, and a clamping protrusion cooperating with the clamping slot is provided on the clamping plate.

[0030] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0031] The embodiments of the present invention are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pipe joint fixing device, characterized in that: The invention comprises two half clamps symmetrically arranged in the upper and lower parts, the half clamps are provided with a semicircular groove, a plurality of granular protrusions are evenly arranged on the wall of the semicircular groove, the two semicircular grooves are arranged facing each other, the two half clamps are used to fix the pipe connection, the left and right sides of the half clamps are provided with locking pieces, the locking pieces are used to lock the two half clamps, two arc-shaped sliding tubes symmetrically arranged in the front and back of the half clamps, the two ends of the arc-shaped sliding tubes are at different distances from the front end of the half clamps, the arc-shaped sliding tubes are connected with protruding ports connected with the semicircular grooves at equal intervals, an arc-shaped connecting plate is slidably connected in the arc-shaped sliding tube, a sliding block matched with the protruding port is provided on the arc-shaped connecting plate, and a protruding port is provided on the side of the sliding block close to the semicircular groove The extension plate is evenly provided with a plurality of friction protrusions, and both ends of the extension plate are rotatably connected with the slider through a connecting rod, and a baffle is provided in the arc sliding tube at one side of the extension port, and the baffle is provided on the side of the extension port close to the middle position of the two arc connecting plates, and a driving member for controlling the arc connecting plate to slide in the arc sliding tube is provided on the half clamp, and the driving member controls the arc connecting plate to slide in one direction in the arc sliding tube so that the slider moves close to the baffle direction, and when the extension plate contacts the baffle, the driving member continues to control the movement of the arc connecting plate so that one end of the extension plate abuts against the baffle and extends out of the extension port, so as to facilitate the control of the extension plate to clamp pipes of different sizes in the semicircular groove.

2. A pipe joint fixing device according to claim 1, characterized in that: A middle protective layer arranged on the groove wall of the semicircular groove is arranged between the two arc-shaped sliding tubes on the same half clamp, a waterproof layer is arranged on the middle protective layer, and elastic protrusion layers are arranged on both sides of the waterproof layer.

3. A pipe joint fixing device according to claim 1, characterized in that: The connecting rod and the sliding block are rotatably connected via a rotating shaft, and a first torsion spring is arranged on the rotating shaft.

4. A pipe joint fixing device according to claim 1, characterized in that: The driving member includes an arc-shaped through hole opened on the outer side wall of the semi-clamp and connected with the arc-shaped sliding tube, a moving handle is provided on the semi-clamp, which passes through the arc-shaped through hole and is connected to the arc-shaped connecting plate, a slot is opened on the top of the moving handle, a locking button is arranged in the slot, a plurality of locking holes are arranged at intervals on both side walls of the arc-shaped through hole, side slots connected with the slot are arranged on the front and rear sides of the moving handle, and a protruding rod matched with the locking hole is arranged in the side slot.

5. A pipe joint fixing device according to claim 4, characterized in that: A piston is arranged on one side of the extension rod close to the locking button and on the lower end of the locking button.

6. A pipe joint fixing device according to claim 1, characterized in that: The driving member includes a driving motor arranged on the half clamp, the output end of the driving motor is connected to a spool, a traction line is wound on the spool, one end of the traction line is connected to the spool, the other end of the traction line is connected to the arc-shaped connecting plate, and one end of the arc-shaped connecting plate is connected to the end wall of the arc-shaped sliding tube through an elastic spring.

7. A pipe joint fixing device according to claim 1, characterized in that: The driving member is a driving telescopic rod arranged on the half clamp, the driving telescopic rod is connected to the arc-shaped connecting plate, and the driving telescopic rod telescopes to control the arc-shaped connecting plate to move left and right in the arc-shaped sliding tube.

8. A pipe joint fixing device according to claim 1, characterized in that: The locking member comprises a bolt which passes through a threaded hole on the half clamp, and a nut is threadedly connected to the bolt.

9. A pipe joint fixing device according to claim 1, characterized in that: The locking member includes a sub-clamp and a mother clamp respectively located on the two half clamps, and the sub-clamp and the mother clamp are cooperated to lock the two half clamps, and the sub-clamp and the mother clamp are respectively a clamping slot and a clamping plate, wherein both side walls of one half clamp are provided with a clamping slot, and both side walls of the other half clamp are rotatably connected with a clamping plate through a rotating shaft, a second torsion spring is provided on the rotating shaft, and a clamping protrusion cooperating with the clamping slot is provided on the clamping plate.

Images