CN109057185B

CN109057185B - PVC drain pipe anti-theft structure with adjusting function

Info

Publication number: CN109057185B
Application number: CN201811010509.9A
Authority: CN
Inventors: 林玉平
Original assignee: Taizhou Daoye Technology Co ltd
Current assignee: Taizhou Daoye Technology Co ltd
Priority date: 2018-08-31
Filing date: 2018-08-31
Publication date: 2021-06-18
Anticipated expiration: 2038-08-31
Also published as: CN109057185A

Abstract

The invention provides a PVC drain pipe anti-theft structure with an adjusting function, and belongs to the field of related parts of drain pipes. It has solved the poor problem of current drain pipe anti-theft device theftproof effect. This PVC drain pipe theftproof structure of band adjustment function includes drain pipe and two connecting seats of cladding on the drain pipe, the cover has the movable tube on the drain pipe, still include interconnect's theftproof board, two theftproof boards respectively with movable tube outer wall connection, movable tube outer wall and two theftproof inboard sides surround and form the lock chamber, lock chamber both ends are fixed with the baffle, still include two sets of locking mechanical system, locking mechanical system is including fixing the lock seat on the outer wall, lock seat both ends are connected with the jam plate respectively, jam plate left side limit or right side limit have the locked groove, jam plate front side limit has the direction limit, lock seat middle part is equipped with the dog, still include the pivot that one end was fixed on the theftproof inboard side of board, still include the locking lever that the middle part was equipped with the shaft hole, the shaft hole is passed in the pivot, and be. The anti-theft structure has better anti-theft effect.

Description

PVC drain pipe anti-theft structure with adjusting function

Technical Field

The invention belongs to the technical field of related parts of a drain pipe, and relates to a PVC drain pipe anti-theft structure with an adjusting function.

Background

Present outdoor drain pipe can become the indoor support of burglar entering, and the current ordinary theftproof way is installing the theftproof thorn additional on the drain pipe, but the theftproof thorn can influence outer wall constructor, very easily is hindered by the thorn, simultaneously because the drain pipe still can regard as the support that climbs for the protective equipment can be worn to the burglar and climbs.

The prior application number is 201611167562.0, which is a Chinese invention patent named as a drain pipe anti-theft structure with an overhauling and adjusting function, the movable pipe is movably sleeved on the outer side of a drain pipe, and the movable sleeve is rotated around the drain pipe during overhauling, so that the anti-theft plate is rotated, and therefore, the anti-theft plate can not only prevent theft, but also can adjust the structure to facilitate the construction of an outer wall. However, it has the following problems:

1. the locking structure is not provided, and the adjustment structure is convenient, but also convenient for other people to adjust at will, so that potential safety hazards exist;

2. when the anti-theft plate is used for anti-theft, as the anti-theft plate is parallel to the outer wall, more supporting points still exist, and the anti-theft plate can also be used as the supporting points, so that the anti-theft effect is poor;

3. if the anti-theft board is forgotten to reset after the devices such as an air conditioner external unit and the like are installed at the position of the original anti-theft board or after the device is overhauled, the anti-theft board can completely lose the function;

4. after the air conditioner outdoor unit is adjusted in place, the air conditioner outdoor unit cannot be quickly positioned, so that the anti-theft plate can rotate randomly in the process of overhauling or installing the air conditioner outdoor unit, potential safety hazards are caused, and the fixing is very troublesome; there is therefore a need for improvement.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provides an anti-theft structure of a PVC drain pipe with an adjusting function, which can realize random side anti-theft, has stronger anti-theft function and does not influence fixation.

The purpose of the invention can be realized by the following technical scheme: the utility model provides a take regulatory function's PVC drain pipe theftproof structure, includes vertical setting to fix the drain pipe on the outer wall, its characterized in that: the anti-theft device also comprises two connecting seats which are coated on the outer wall of the drain pipe and fixed with the outer wall, a tubular movable pipe is sleeved on the drain pipe between the two connecting seats, two ends of the movable pipe are respectively abutted against the two connecting seats, the outer wall of the movable pipe is arranged at an interval with the outer wall, and the movable pipe can rotate around the axis of the drain pipe, the anti-theft device also comprises two rectangular plate-shaped anti-theft plates of which the outer sides are mutually connected, the inner sides of the two anti-theft plates are respectively connected with the outer wall of the movable pipe, the outer sides of the two anti-theft plates are respectively tangent to the outer wall of the movable pipe, the outer sides of the two anti-theft plates are both smooth surfaces or are provided with a plurality of anti-theft spines, or the outer side of one anti-theft plate is a smooth surface, the outer side of the other anti-theft, the group of locking mechanisms comprise locking seats which are positioned on one side of the drain pipe and fixed on the outer wall, the locking seats of the two groups of locking mechanisms are respectively positioned on the outer walls on two sides of the drain pipe, two ends of each locking seat are respectively connected with a locking plate, the axis of the drain pipe is vertical to the top surface and the bottom surface of the locking plate, the left side edge or the right side edge of each locking plate is provided with a notch-shaped locking groove, the front side edge of each locking plate is provided with a bevel-edge-shaped guide edge, the guide edge is connected with one side of the notch of the locking groove, the middle part of each locking seat is provided with a plurality of stop blocks, the group of locking mechanisms also comprise rotating shafts with one ends vertically fixed on the inner side surface of the anti-theft plate, and further comprise locking rods with rod walls attached on the inner side surface of the anti-theft plate, shaft holes are arranged in the middle parts of the, two blocking holes are respectively arranged on one baffle plate, the blocking holes are of a long strip hole-shaped structure, the length directions of the two blocking holes on one group of locking mechanisms are parallel to the corresponding anti-theft plates, two ends of each locking rod penetrate through the two blocking holes of one group of locking mechanisms respectively, the torsion spring twists the locking rods to enable the rod walls of the locking rods close to the two ends to be abutted to one ends of the two blocking holes respectively, the group of locking mechanisms further comprises two locking holes positioned on the anti-theft plates, the two locking holes are of a central symmetry structure by taking the corresponding rotating shaft axes as axes, the two anti-theft plates are respectively provided with two locking holes, the length directions of the locking holes are vertical to the axes of the drainage pipes, the rod walls at two ends of the locking rods extending out of the two baffle plates are respectively fixed with a U-shaped main locking ring, and the;

and the movable pipe can rotate around the axis of the drain pipe, so that the two locking plates respectively pass through the two lock holes, and the guide edges of the two locking plates respectively push the lock rod to be close to the rod walls at the two ends, the lock rod rotates around the rotating shaft, when the outer side surface of the anti-theft plate is abutted against the stop block, the outer side surface of the anti-theft plate close to the outer wall is parallel to the outer wall, the lock rod is twisted by the torsion spring to be embedded in the lock groove, the lock plate and the anti-theft plate are relatively fixed through the lock rod, the main lock ring and the auxiliary lock ring are partially overlapped, the lock rod is fixed by the padlock which respectively passes through the main lock ring and the auxiliary lock ring, the padlock can be opened, the top end or the bottom end of the lock rod is pushed, the lock rod rotates around the rotating shaft, and the lock rod is separated from the lock groove, the movable pipe is rotated around the axis of the drain pipe, the outer side surface of the other anti-theft plate is abutted against the stop block of the other group of locking mechanisms, and the other anti-theft plate is fixed on the outer wall through the other group of locking mechanisms.

After the rotary movable pipe of the anti-theft structure is in place, the two locking plates respectively penetrate through the two locking holes, the guide edges of the two locking plates respectively push the locking rod to be close to the rod walls at the two ends, the locking rod is enabled to rotate around the rotating shaft, when the outer side surface of the anti-theft plate abuts against the stop block, the outer side surface of the anti-theft plate close to the outer wall is parallel to the outer wall, the torsional spring twists the locking rod to be embedded in the locking groove, and the locking plate and the anti-theft plate are relatively fixed through the locking rod, so that the locking plate and the anti-theft plate can be automatically; after the primary lock ring and the secondary lock ring are adjusted in place, the primary lock ring and the secondary lock ring are partially overlapped, so that the padlock respectively penetrating through the primary lock ring and the secondary lock ring can be used for fixing, and the safety is higher; no matter the anti-theft structure is adjusted to the left side or the right side of the drain pipe, the supporting structure formed on the original drain pipe can be eliminated, meanwhile, the anti-theft structure can be used for preventing theft through the anti-theft pricks on the anti-theft plate, the smooth surface can be used for avoiding random climbing, the upward climbing supporting structure disappears, and the anti-theft effect is better; when the adjusting is needed, the locking rod rotates around the rotating shaft only by pushing the top end or the bottom end of the locking rod, and the locking rod is separated from the locking groove, so that the movable pipe can rotate around the axis of the drain pipe, and the adjusting is very convenient.

In foretell PVC drain pipe anti-theft structure of taking regulatory function, the connecting seat for the steel sheet bending type becomes U-shaped structure, and the connecting seat has the interior cambered surface of cladding on the drain pipe lateral surface, the connecting seat both ends respectively bending type become with the outer wall through the fixed connecting plate of fastener laminating.

Therefore, the connecting seat is convenient to fix the drain pipe and the outer wall.

In foretell PVC drain pipe anti-theft structure of taking regulatory function, the activity pipe include U-shaped platelike main fly leaf and the vice fly leaf of arc, main fly leaf intrados and the vice fly leaf intrados laminate with the drain pipe outer wall respectively, two inboard edges of anti-theft plate connect through the vice fly leaf of arc, and enclose the vice fly leaf that forms the lock chamber and two anti-theft plate structure as an organic whole, main fly leaf both ends pass through the fastener laminating with two anti-theft plate lateral surfaces respectively and fix.

Therefore, the movable pipe can be formed by surrounding the main movable plate and the auxiliary movable plate, and meanwhile, the whole structure is compact and the stability is higher.

In the PVC drain pipe anti-theft structure with the adjusting function, the joint of the outer side edges of the two anti-theft plates is bent to form a strip-shaped barrier strip which is abutted against the outer wall, and the length direction of the barrier strip is parallel to the axis of the drain pipe.

Can adjust the back that targets in place at the theftproof board through the blend stop, eliminate the gap between theftproof board and the outer wall to improve the theftproof effect, stability is higher simultaneously, avoids the drain pipe shake to lead to producing the noise with the theftproof board striking.

In the PVC drain pipe anti-theft structure with the adjusting function, the lock seat is a strip-shaped steel plate with the length direction parallel to the axis of the drain pipe, the lock plate is formed by integrally bending two ends of the lock seat, and the stop block is a sheet structure formed by cutting and bending the middle part of the lock plate.

In the PVC drain pipe anti-theft structure with the adjusting function, the anti-theft thorn is formed by stamping the anti-theft plate, or the outer side surface of the anti-theft plate is coated with the smooth coating.

Compared with the prior art, the invention has the following advantages:

1. after the rotary movable pipe of the anti-theft structure is in place, the two locking plates respectively penetrate through the two locking holes, the guide edges of the two locking plates respectively push the locking rod to be close to the rod walls at the two ends, the locking rod is enabled to rotate around the rotating shaft, when the outer side surface of the anti-theft plate abuts against the stop block, the outer side surface of the anti-theft plate close to the outer wall is parallel to the outer wall, the torsional spring twists the locking rod to be embedded in the locking groove, and the locking plate and the anti-theft plate are relatively fixed through the locking rod, so that the locking plate and the anti-theft plate can be automatically;

2. after the primary lock ring and the secondary lock ring are adjusted in place, the primary lock ring and the secondary lock ring are partially overlapped, so that the padlock respectively penetrating through the primary lock ring and the secondary lock ring can be used for fixing, and the safety is higher;

3. no matter the anti-theft structure is adjusted to the left side or the right side of the drain pipe, the supporting structure formed on the original drain pipe can be eliminated, meanwhile, the anti-theft structure can be used for preventing theft through the anti-theft pricks on the anti-theft plate, the smooth surface can be used for avoiding random climbing, the upward climbing supporting structure disappears, and the anti-theft effect is better;

4. when the adjusting is needed, the locking rod rotates around the rotating shaft only by pushing the top end or the bottom end of the locking rod, and the locking rod is separated from the locking groove, so that the movable pipe can rotate around the axis of the drain pipe, and the adjusting is very convenient.

Drawings

Fig. 1 and 2 are a front view and a front sectional view, respectively, of the antitheft structure.

Fig. 3 and 4 are partially enlarged views of fig. 2, respectively.

Fig. 5 is a top sectional view of the anti-theft structure.

Fig. 6 and 7 are partially enlarged views of fig. 5, respectively.

Fig. 8 is a top view of the anti-theft structure in another use state.

Fig. 9 is a partially enlarged view of fig. 8.

Fig. 10 is a front view of the lock housing.

In the figure, the position of the upper end of the main shaft,

1. a drain pipe;

2. a connecting seat; 21. a connecting plate;

3. a movable tube; 31. a main movable plate; 32. a secondary movable plate;

4. an anti-theft plate; 41. theft-proof thorn; 42. a rotating shaft; 43. a lock hole; 44. blocking strips;

5. a lock lever; 51. a shaft hole; 52. a primary lock ring;

6. a baffle plate; 61. blocking holes; 62. a secondary lock ring;

7. an outer wall; 71. a lock seat; 72. a locking plate; 73. locking the groove; 74. a guide edge; 75. a stopper;

8. a padlock is provided.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in figures 1-10, the invention relates to a PVC drain pipe anti-theft structure with an adjusting function, which comprises a drain pipe 1 which is vertically arranged and fixed on an outer wall 7, two connecting seats 2 which are coated on the outer wall of the drain pipe 1 and fixed with the outer wall 7, a tubular movable pipe 3 which is sleeved on the drain pipe 1 between the two connecting seats 2, two ends of the movable pipe 3 are respectively abutted against the two connecting seats 2, the outer wall of the movable pipe 3 is arranged at intervals with the outer wall 7, the movable pipe 3 can rotate around the axis of the drain pipe 1, the invention also comprises two rectangular plate-shaped anti-theft plates 4 of which the outer sides are mutually connected, the inner sides of the two anti-theft plates 4 are respectively connected with the outer wall of the movable pipe 3, the outer sides of the two anti-theft plates 4 are respectively tangent with the outer wall of the movable pipe 3, the outer sides of the two anti-theft, the outer side of the other anti-theft plate 4 is provided with a plurality of anti-theft spines 41, the outer wall of the movable pipe 3 and the inner sides of the two anti-theft plates 4 are enclosed to form a lock cavity, two ends of the lock cavity are respectively fixed with a baffle 6, the anti-theft device also comprises two groups of locking mechanisms, one group of locking mechanisms comprises a lock seat 71 which is positioned on one side of the drain pipe 1 and fixed on the outer wall 7, the lock seats 71 of the two groups of locking mechanisms are respectively positioned on the outer walls 7 on two sides of the drain pipe 1, two ends of the lock seat 71 are respectively connected with a lock plate 72, the axis of the drain pipe 1 is vertical to the top surface and the bottom surface of the lock plate 72, the left side or the right side of the lock plate 72 is provided with a notch-shaped lock groove 73, the front side of the lock plate 72 is provided with a bevel-shaped guide edge 74, the guide edge 74 is connected with one side of the notch of the lock, the middle part of the lock rod 5 is provided with a shaft hole 51, the hole opening direction of the shaft hole 51 is vertical to the axis of the lock rod 5, the rotating shaft 42 passes through the shaft hole 51, a torsional spring is connected between the rotating shaft 42 and the shaft hole 51, a group of locking mechanisms further comprises two blocking holes 61 respectively positioned on the two baffle plates 6, and one baffle plate 6 is respectively provided with two blocking holes 61, the blocking holes 61 are in a strip hole-shaped structure, the length directions of the two blocking holes 61 on the group of locking mechanisms are parallel to the corresponding anti-theft plates 4, the two ends of the lock rod 5 respectively penetrate through the two blocking holes 61 of the group of locking mechanisms, the torsional spring twists the lock rod 5 to enable the rod walls of the lock rod 5 close to the two ends to respectively support against one ends of the two blocking holes 61, the group of locking mechanisms further comprises two lock holes 43 positioned on the anti-theft plates 4, the two lock holes 43 are in a central symmetry structure by taking the axis, the rod walls at two ends of the lock rod 5 extending out of the two baffles 6 are respectively fixed with a U-shaped main lock ring 52, and the outer side surfaces of the two baffles 6 opposite to each other are respectively fixed with a U-shaped auxiliary lock ring 62;

and the movable pipe 3 can be rotated around the axis of the water drainage pipe 1 to make the two lock plates 72 pass through the two lock holes 43 respectively, the guide edges 74 of the two lock plates 72 push the lock rod 5 to approach the rod walls at the two ends respectively, and make the lock rod 5 rotate around the rotating shaft 42, and when the outer side surface of the anti-theft plate 4 is abutted on the stop block 75, the outer side surface of the anti-theft plate 4 close to the outer wall 7 is parallel to the outer wall 7, and the torsion spring twists the lock rod 5 to be embedded in the lock groove 73, and fix the lock plate 72 and the anti-theft plate 4 relatively through the lock rod 5, and the main lock ring 52 and the auxiliary lock ring 62 are partially overlapped and fixed through the padlock 8 passing through the main lock ring 52 and the auxiliary lock ring 62 respectively, and can open the padlock 8, and push the top end or the bottom end of the lock rod 5 to make the lock rod 5 rotate around the rotating shaft 42, and make the lock rod 5 be separated from the lock groove 73, and rotate the movable pipe 3, and the other security panel 4 is fixed on the outer wall 7 by another set of locking mechanisms.

Further, connecting seat 2 is the steel sheet bending type U-shaped structure that forms, and connecting seat 2 has the intrados of cladding on 1 lateral surface of drain pipe, and 2 both ends of connecting seat bending type respectively pass through the fixed connecting plate 21 of fastener laminating with outer wall 7. The movable pipe 3 comprises a U-shaped plate-shaped main movable plate 31 and an arc-shaped auxiliary movable plate 32, the inner arc surface of the main movable plate 31 and the inner arc surface of the auxiliary movable plate 32 are respectively attached to the outer wall of the drain pipe 1, the inner sides of the two anti-theft plates 4 are connected through the arc-shaped auxiliary movable plate 32, the auxiliary movable plate 32 and the two anti-theft plates 4 which form a lock cavity in a surrounding mode are of an integrated structure, and the two ends of the main movable plate 31 are respectively attached and fixed to the outer side faces of the. The joint of the outer side edges of the two anti-theft plates 4 is bent to form a strip-shaped barrier strip 44 which is abutted against the outer wall 7, and the length direction of the barrier strip 44 is parallel to the axis of the drain pipe 1. The lock base 71 is a strip-shaped steel plate with the length direction parallel to the axis of the drain pipe 1, the lock plate 72 is formed by integrally bending two ends of the lock base 71, and the stopper 75 is formed by cutting and bending the middle part of the lock plate 72 into a sheet structure. The antitheft thorn 41 is formed by stamping the antitheft plate 4, or the outer side surface of the antitheft plate 4 is coated with a smooth coating.

After the movable tube 3 of the anti-theft structure is rotated to the position, the two locking plates 72 respectively pass through the two locking holes 43, the guide edges 74 of the two locking plates 72 respectively push the locking rod 5 to be close to the rod walls at the two ends, the locking rod 5 is enabled to rotate around the rotating shaft 42, when the outer side surface of the anti-theft plate 4 abuts against the stop block 75, the outer side surface of the anti-theft plate 4 close to the outer wall 7 is parallel to the outer wall 7, the locking rod 5 is twisted by the torsion spring and is embedded in the locking groove 73, and the locking plate 72 and the anti-theft plate 4 are relatively fixed through the locking rod 5, so that the anti-theft structure can be automatically and quickly positioned; after the primary lock ring 52 and the secondary lock ring 62 are partially overlapped after being adjusted in position, the padlock 8 respectively penetrating through the primary lock ring 52 and the secondary lock ring 62 can be used for fixing, and therefore the safety is higher; no matter the anti-theft structure is adjusted to the left side or the right side of the drain pipe 1, the supporting structure formed on the original drain pipe 1 can be eliminated, meanwhile, the anti-theft structure can be prevented from being stolen through the anti-theft spikes 41 on the anti-theft plate 4, and the smooth surface can be used for avoiding random climbing, so that the upward climbing supporting structure disappears, and the anti-theft effect is better; when the adjustment is needed, the movable pipe 3 can be rotated around the axis of the drain pipe 1 only by pushing the top end or the bottom end of the lock rod 5 to rotate the lock rod 5 around the rotating shaft 42 and separating the lock rod 5 from the lock groove 73, so the adjustment is very convenient.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Although the terms of the drainage pipe 1, the connection seat 2, the connection plate 21, the movable pipe 3, the main movable plate 31, the sub movable plate 32, the anti-theft plate 4, the anti-theft pin 41, the rotation shaft 42, the locking hole 43, the blocking strip 44, the locking rod 5, the shaft hole 51, the main locking ring 52, the baffle 6, the blocking hole 61, the sub locking ring 62, the outer wall 7, the locking seat 71, the locking plate 72, the locking groove 73, the guide edge 74, the stopper 75, the padlock 8, etc. are used more frequently, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.

Claims

1. The utility model provides a take regulatory function's PVC drain pipe theftproof structure, includes vertical setting to fix drain pipe (1) on outer wall (7), its characterized in that: the anti-theft device is characterized by further comprising two connecting seats (2) which are coated on the outer wall of the drain pipe (1) and fixed with the outer wall (7), wherein a tubular movable pipe (3) is sleeved on the drain pipe (1) between the two connecting seats (2), two ends of the movable pipe (3) are respectively abutted against the two connecting seats (2), the outer wall of the movable pipe (3) is arranged at intervals with the outer wall (7), the movable pipe (3) can rotate around the axis of the drain pipe (1), the anti-theft device also comprises two rectangular plate-shaped anti-theft plates (4) with outer sides mutually connected, the inner sides of the two anti-theft plates (4) are respectively connected with the outer wall of the movable pipe (3), the outer sides of the two anti-theft plates (4) are respectively tangent to the outer wall of the movable pipe (3), the outer sides of the two anti-theft plates (4) are both smooth surfaces or are provided with a plurality of anti-theft thorns (41), the outer side of one anti, movable pipe (3) outer wall and two theftproof boards (4) medial surface surround and form the lock chamber, and lock chamber both ends are fixed with baffle (6) respectively, still include two sets of locking mechanical system, a set of locking mechanical system is including being located drain pipe (1) one side to fix lock seat (71) on outer wall (7), and lock seat (71) of two sets of locking mechanical system are located outer wall (7) of drain pipe (1) both sides respectively, lock seat (71) both ends be connected with jam plate (72) respectively, drain pipe (1) axis is perpendicular with jam plate (72) top surface and bottom surface, jam plate (72) left side or right side have breach form locked groove (73), jam plate (72) front side has hypotenuse form guiding edge (74), and guiding edge (74) link up with locked groove (73) notch one side, lock seat (71) middle part be equipped with a plurality of dog (75), a set of locking mechanical system still include that one end vertical fixation is in pivot (42) on theftproof board (4) medial surface The anti-theft lock further comprises a lock rod (5) with a rod wall attached to the inner side face of the anti-theft plate (4), wherein a shaft hole (51) is formed in the middle of the lock rod (5), the opening direction of the shaft hole (51) is perpendicular to the axis of the lock rod (5), the rotating shaft (42) penetrates through the shaft hole (51), a torsion spring is connected between the rotating shaft (42) and the shaft hole (51), the group of locking mechanisms further comprises blocking holes (61) which are respectively formed in two baffle plates (6), two blocking holes (61) are respectively formed in one baffle plate (6), the blocking holes (61) are of a strip-shaped hole structure, the length directions of the two blocking holes (61) in the group of locking mechanisms are parallel to the corresponding anti-theft plate (4), two blocking holes (61) of the group of locking mechanisms are respectively penetrated through from the two ends of the lock rod (5), the torsion spring twists the lock rod (5), so that the rod wall of the lock rod (, the group of locking mechanisms further comprises two locking holes (43) which are positioned on the anti-theft plates (4), the two locking holes (43) are in a central symmetry structure by taking the axis of the corresponding rotating shaft (42) as an axis, the two anti-theft plates (4) are respectively provided with the two locking holes (43), the length directions of the locking holes (43) are vertical to the axis of the drainage pipe (1), the rod walls at the two ends of the locking rod (5) extending out of the two baffles (6) are respectively fixed with a U-shaped main locking ring (52), and the opposite outer side surfaces of the two baffles (6) are respectively fixed with a U-shaped auxiliary locking ring (62);

the movable pipe (3) can rotate around the axis of the drain pipe (1), so that the two lock plates (72) respectively pass through the two lock holes (43), the guide edges (74) of the two lock plates (72) respectively push the lock rod (5) to be close to the rod walls at the two ends, the lock rod (5) rotates around the rotating shaft (42), when the outer side surface of the anti-theft plate (4) abuts against the stop block (75), the outer side surface of the anti-theft plate (4) close to the outer wall (7) is parallel to the outer wall (7), the lock rod (5) is twisted by the torsion spring to be embedded in the lock groove (73), the lock plates (72) and the anti-theft plate (4) are relatively fixed through the lock rod (5), the main lock ring (52) and the auxiliary lock ring (62) are partially overlapped, the lock rod (8) is fixed through the padlocks (8) respectively passing through the main lock ring (52) and the auxiliary lock ring (62), the padlocks (8) can be opened, the top end or the bottom end of the lock rod (5, and the lock rod (5) is separated from the lock groove (73), the movable pipe (3) is rotated around the axis of the drain pipe (1), the outer side surface of the other anti-theft plate (4) is abutted against a stop block (75) of the other group of locking mechanisms, and the other anti-theft plate (4) is fixed on the outer wall (7) through the other group of locking mechanisms.

2. The PVC drain pipe anti-theft structure with the adjusting function of claim 1, characterized in that: connecting seat (2) for the steel sheet bending type U-shaped structure that forms, and connecting seat (2) have the cladding at the intrados on drain pipe (1) lateral surface, connecting seat (2) both ends bending type respectively and pass through fixed connecting plate (21) of fastener laminating with outer wall (7).

3. The PVC drain pipe anti-theft structure with the adjusting function of claim 2, characterized in that: the movable pipe (3) including U-shaped platelike main movable plate (31) and the vice fly leaf of arc (32), main movable plate (31) intrados and vice fly leaf (32) intrados laminate with drain pipe (1) outer wall respectively, two theftproof board (4) inboard side pass through the vice fly leaf of arc (32) and be connected, and enclose vice fly leaf (32) and two theftproof board (4) structure as an organic whole that form the lock chamber, main movable plate (31) both ends pass through the fastener laminating with two theftproof board (4) lateral surfaces respectively and fix.

4. The PVC drain pipe anti-theft structure with the adjusting function of claim 3, characterized in that: the joint of the outer side edges of the two anti-theft plates (4) is bent to form a strip-shaped barrier strip (44) which is abutted against the outer wall (7), and the length direction of the barrier strip (44) is parallel to the axis of the drain pipe (1).

5. The PVC drain pipe anti-theft structure with the adjusting function of claim 4, characterized in that: the lock seat (71) is a strip-shaped steel plate with the length direction parallel to the axis of the drain pipe (1), the lock plate (72) is formed by integrally bending two ends of the lock seat (71), and the stop block (75) is formed by cutting and bending the middle part of the lock plate (72) into a sheet structure.

6. The PVC drain pipe anti-theft structure with the adjusting function of claim 5, characterized in that: the anti-theft thorn (41) is formed by stamping the anti-theft plate (4), or the outer side surface of the anti-theft plate (4) is coated with a smooth coating.