阅读说明：本技术 一种建筑外墙水管用安装设备 (Mounting equipment for building outer wall water pipe ) 是由 李强 于 2020-10-20 设计创作，主要内容包括：本发明公开一种建筑外墙水管用安装设备,包括限位机构、定位机构、第一螺纹杆、连接齿轮、限位卡轴、支撑架、连接套筒、齿轮圈和调节机构,所述调节机构的外端面通过固定板固定连接有用于支撑的连接套筒。本发明通过设置调节机构进而有效提高了对外部水管进行牵引和定位的效率,同时能适应不同半径的水管,有效提高了装置的适应性能,同时通过设置限位机构,当两组限位机构相互靠近夹持外部水管时,此时弹簧轴能为夹持板提供足够的弹力进行缓冲,防止夹持板与水管接触水压力过大造成水管的损伤,提高对水管进行夹持的稳定性和防护性。(The invention discloses mounting equipment for a building outer wall water pipe, which comprises a limiting mechanism, a positioning mechanism, a first threaded rod, a connecting gear, a limiting clamping shaft, a supporting frame, a connecting sleeve, a gear ring and an adjusting mechanism, wherein the outer end surface of the adjusting mechanism is fixedly connected with the connecting sleeve for supporting through a fixing plate. The invention effectively improves the efficiency of traction and positioning of the external water pipe by arranging the adjusting mechanism, can adapt to water pipes with different radiuses, and effectively improves the adaptability of the device, and meanwhile, by arranging the limiting mechanisms, when two groups of limiting mechanisms are close to each other to clamp the external water pipe, the spring shaft can provide enough elasticity for the clamping plate to buffer, so that the damage of the water pipe caused by overlarge contact water pressure between the clamping plate and the water pipe is prevented, and the stability and the protection of clamping the water pipe are improved.)

1. The utility model provides a building outer wall erection equipment for water pipe which characterized in that: comprises a limiting mechanism (1), a positioning mechanism (2), a first threaded rod (3), a connecting gear (4), a limiting clamping shaft (5), a support frame (6), a connecting sleeve (7), a gear ring (8) and an adjusting mechanism (9),

the outer end surface of the adjusting mechanism (9) is fixedly connected with a connecting sleeve (7) for supporting through a fixing plate, and six groups of first threaded rods (3) are uniformly and equidistantly rotationally clamped on the outer end surface of the adjusting mechanism (9), the outer end surface of the first threaded rod (3) is fixedly connected with a connecting gear (4), and the front end surface of the connecting gear (4) is fixedly connected with a limit clamping shaft (5), two groups of limiting mechanisms (1) are in threaded sliding clamping connection with the adjusting mechanism (9) and the outer end surface of the first threaded rod (3), a supporting frame (6) is rotationally clamped on the bottom end surface of the adjusting mechanism (9), the upper end surface of the supporting frame (6) is fixedly connected with a gear ring (8) for transmission, and a positioning mechanism (2) for adjustment is fixedly connected to the center of the side end face of the connecting sleeve (7).

2. The installation equipment for the water pipe of the outer wall of the building as claimed in claim 1, wherein: limiting mechanism (1) includes limiting plate (101), screw hole (102), grip block (103) and spring axle (104), the interior terminal surface symmetry fixedly connected with of limiting plate (101) is two sets of spring axle (104) that are used for elastic support, just limiting plate (101) are through spring axle (104) elasticity fixedly connected with grip block (103), screw hole (102) that are used for the direction are offered to the outer terminal surface symmetry of limiting plate (101).

3. The installation equipment for the water pipe of the outer wall of the building as claimed in claim 2, wherein: the positioning mechanism (2) comprises a supporting block (201), a fixed gear (202), a connecting motor (203), a mounting seat (204), a transmission gear (205), a limiting head (206), a supporting shaft (207), fixed casters (208), a positioning groove (209), a mounting plate (210) and a spring plate (211), wherein the upper end face of the mounting plate (210) is uniformly, equidistantly and symmetrically and fixedly connected with three groups of limiting heads (206) for limiting, the supporting block (201) is elastically and rotatably clamped on the side end face of the mounting plate (210) through the spring plate (211), the fixed casters (208) are fixedly connected on the bottom end faces of the supporting block (201) and the mounting plate (210), the connecting motor (203) is fixedly connected on the upper end face of the mounting plate (210), the fixed gear (202) is fixedly connected on the bottom end face of the connecting motor (203), and the positioning groove (209) is formed in the center of the upper end face of the, and the inner end surface of the positioning groove (209) is rotationally clamped with a transmission gear (205), and the upper end surface of the transmission gear (205) is fixedly connected with a mounting seat (204).

4. The installation equipment for the water pipe of the outer wall of the building as claimed in claim 3, wherein: the adjusting mechanism (9) comprises a fixed casing (901), a motor groove (902), a mounting groove (903), a second threaded rod (904), a clamping gear (905), a positioning gear (906), a limiting ring (907), a connecting tooth groove (908), a supporting gear (909), a gear disc (910), a clamping groove (911) and a connecting bottom shaft (912), wherein the motor groove (902) is formed in the upper end face of the fixed casing (901), six groups of mounting grooves (903) are uniformly and equidistantly formed in the side end face of the fixed casing (901), the clamping groove (911) is formed in the position, right opposite to the center of the inner end face of the mounting groove (903), of the outer end face of the fixed casing (901), the inner end face of the clamping groove (911) is rotatably clamped with the clamping gear (905) through the limiting ring (907), and the positioning gear (906) is fixedly connected to the center of the front end face of the clamping gear (905), the inner end face of the mounting groove (903) is symmetrically and rotatably clamped with a supporting gear (909), the inner end face of the mounting groove (903) is located on the front end face of the supporting gear (909) and is fixedly connected with a second threaded rod (904), the inner end face of the fixed casing shell (901) is rotatably clamped with a gear disc (910), the bottom of the inner end face of the gear disc (910) is provided with a connecting tooth groove (908), and the center of the bottom end face of the gear disc (910) is fixedly connected with a connecting bottom shaft (912).

5. The installation equipment for the water pipe of the outer wall of the building as claimed in claim 4, wherein: the fixedly connected with connector is located at the preceding terminal surface center of second threaded rod (904), and is located the fixedly connected with joint of preceding terminal surface end department of first threaded rod (3), second threaded rod (904) are through connector and joint looks adaptation and then rotate the joint with first threaded rod (3), six groups of turn grooves have been seted up to the even equidistance of interior terminal surface of connecting sleeve (7), just the turn groove rotates the joint with spacing calorie of axle (5) looks adaptation.

6. The installation equipment for the water pipe of the outer wall of the building as claimed in claim 5, wherein: connecting gear (4) and the up end of gear circle (8) mesh and rotate the joint, just connecting tooth's socket (908) and joint gear (905) and meshing rotation and being connected, joint gear (905) carry out meshing rotation through positioning gear (906) and supporting gear (909) and are connected.

7. The installation equipment for the water pipe of the outer wall of the building as claimed in claim 4, wherein: the connecting bottom shaft (912) is matched and fixedly sleeved with the supporting frame (6), the bottom end face of the supporting frame (6) is rotatably connected with the bottom of the inner end face of the connecting sleeve (7), the connecting motor (203) is meshed with the transmission gear (205) through the fixed gear (202) to further drive the mounting seat (204) to rotate, and the mounting seat (204) is fixedly connected with the outside of the connecting sleeve (7).

8. The installation equipment for the water pipe of the outer wall of the building as claimed in claim 7, wherein: the spring plate (211) comprises a rotating shaft rotatably connected with the supporting shaft (207), a limiting baffle fixedly connected to the outer end face of the rotating shaft and a connecting spring used for connecting the baffle with the supporting shaft (207).

9. The installation equipment for the water pipe of the outer wall of the building as claimed in claim 4, wherein: the second threaded rod (904) is identical to the first threaded rod (3) in structure, the spiral directions of the second threaded rod (904) and the first threaded rod (3) are opposite, and the limiting plate (101) is respectively in threaded connection with the second threaded rod (904) and the first threaded rod (3) in a matched mode.

Technical Field

The invention relates to the technical field of building equipment, in particular to mounting equipment for a building outer wall water pipe.

Background

The water supply and drainage system is an indispensable project in building construction, and can rapidly drain various water outside and inside the building through the pipeline network, thereby improving the convenience of people in working and living,

however, in the prior art, as patent numbers: CN201911242187.5 discloses a mounting device for water pipes of building exterior walls, which comprises a device body; the plurality of equipment bodies are sequentially arranged on the peripheral side surface of the water pipe from top to bottom; the equipment body comprises a mounting ring, a fixer and a clamp; a plurality of rectangular bulges are arranged on one side of the outer side surface of the mounting ring side by side; a gyro wheel is installed to the bellied lateral surface of rectangle, though the device can solve the water pipe hoist and mount operation to the narrow and small space of building outer wall, but the device once only can hoist a water pipe, if hoist and mount the water pipe more, very extravagant hoist and mount time, and the region and the scope that the device used are comparatively limited, and the stability when hoisting exists not enoughly, reduced the holistic adaptability of device, reduced staff's operating efficiency, so the problem that the above-mentioned existence was solved with the erection equipment to building outer wall water pipe of urgent need.

Disclosure of Invention

The invention aims to provide mounting equipment for a water pipe of an external wall of a building, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: an installation device for a water pipe of an external wall of a building comprises a limiting mechanism, a positioning mechanism, a first threaded rod, a connecting gear, a limiting clamping shaft, a supporting frame, a connecting sleeve, a gear ring and an adjusting mechanism,

adjusting mechanism's outer terminal surface passes through the connecting sleeve that fixed plate fixedly connected with is used for the support, and is located adjusting mechanism's the even equidistance of outer terminal surface rotates the joint and has six first threaded rod of group, the outer terminal surface fixedly connected with connecting gear of first threaded rod, and is located connecting gear's the spacing card axle of preceding terminal surface fixedly connected with, adjusting mechanism has two sets of stop gear with the outer terminal surface screw thread slip joint of first threaded rod, and is located adjusting mechanism's bottom face rotates the joint and has the support frame, the up end fixedly connected with of support frame is used for driven ring gear, the side end face center department fixedly connected with of connecting sleeve is used for the positioning mechanism who adjusts.

Preferably, the limiting mechanism comprises a limiting plate, a threaded hole, a clamping plate and a spring shaft, two groups of spring shafts used for elastic support are symmetrically and fixedly connected to the inner end face of the limiting plate, the limiting plate is elastically and fixedly connected with the clamping plate through the spring shaft, and the threaded hole used for guiding is symmetrically formed in the outer end face of the limiting plate.

Preferably, the positioning mechanism includes supporting shoe, fixed gear, connection motor, mount pad, drive gear, spacing head, back shaft, truckle, constant head tank, mounting panel and spring board, the even equidistance symmetry three group of fixedly connected with of up end of mounting panel is used for spacing head, and is located the side end face of mounting panel has the supporting shoe through the joint of spring board elastic rotation, the equal fixedly connected with fixed truckle of bottom face of supporting shoe and mounting panel, the up end fixedly connected with of mounting panel connects the motor, and is located the bottom face fixedly connected with fixed gear of connecting the motor, the constant head tank has been seted up to the up end center department of mounting panel, and is located the interior terminal surface rotation joint of constant head tank has drive gear, drive gear's up end fixedly connected with mount pad.

Preferably, the adjusting mechanism comprises a fixing sleeve shell, a motor groove, a mounting groove, a second threaded rod, a clamping gear, a positioning gear, a limiting ring, a connecting tooth groove, a supporting gear, a gear disc, a clamping groove and a connecting bottom shaft, wherein the upper end surface of the fixing sleeve shell is provided with the motor groove, six groups of mounting grooves are uniformly and equidistantly arranged on the side end surface of the fixing sleeve shell, the outer end surface of the fixing sleeve shell is just opposite to the center of the inner end surface of the mounting groove and is provided with the clamping groove, the inner end surface of the clamping groove is rotationally clamped with the clamping gear through the limiting ring, the positioning gear is fixedly connected at the center of the front end surface of the clamping gear, the inner end surface of the mounting groove is symmetrically rotationally clamped with the supporting gear, the front end surface of the supporting gear is fixedly connected with the second threaded rod, the inner end surface of the fixing sleeve shell is rotationally clamped with the gear disc, and, the center of the bottom end surface of the gear plate is fixedly connected with a connecting bottom shaft.

Preferably, the fixedly connected with connector is located in the preceding terminal surface center of second threaded rod, and is located the fixedly connected with joint of preceding terminal surface end department of first threaded rod, the second threaded rod passes through connector and joint looks adaptation and then rotates the joint with first threaded rod, six sets of turn grooves have been seted up to connecting sleeve's interior terminal surface even equidistance, just the turn groove rotates the joint with spacing calorie of axle looks adaptation.

Preferably, the connection gear meshes with the up end of gear circle and rotates the joint, just connect tooth's socket and joint gear to mesh to rotate and be connected, the joint gear meshes with the support gear through the positioning gear and rotates and be connected.

Preferably, the connecting bottom shaft is matched and fixedly sleeved with the support frame, the bottom end face of the support frame is rotatably connected with the bottom of the inner end face of the connecting sleeve, the connecting motor is meshed with the transmission gear through the fixed gear to drive the mounting seat to rotate, and the mounting seat is fixedly connected with the outer portion of the connecting sleeve.

Preferably, the spring plate comprises a rotating shaft rotatably connected with the supporting shaft, a limiting baffle fixedly connected to the outer end face of the rotating shaft, and a connecting spring for connecting the baffle with the supporting shaft.

Preferably, the second threaded rod is the same as the first threaded rod in structure, the spiral directions of the second threaded rod and the first threaded rod are opposite, and the limiting plate is respectively in threaded connection with the second threaded rod and the first threaded rod in a matched mode.

Compared with the prior art, the invention has the following beneficial effects:

1. according to the invention, by arranging the adjusting mechanism, the fixing sleeve shell can drive the positioning gears to rotate through the internal clamping gears when rotating, so that the positioning gears drive the two groups of supporting gears to rotate, when the supporting gears rotate, the two groups of second threaded rods can be driven to rotate, so that the limiting mechanisms are driven to displace on the upper parts of the two groups of second threaded rods, meanwhile, when the gear disc rotates, the connecting bottom shaft at the bottom of the gear disc can drive the gear ring to rotate through the supporting frame, so that the power for displacing is provided for the other group of limiting mechanisms, so that the two groups of limiting mechanisms stably displace on the first threaded rods and the second threaded rods, the efficiency of traction and positioning on external water pipes is effectively improved, meanwhile, the device can adapt to water pipes with different radiuses, and the adaptability of the device is effectively improved.

2. According to the invention, by arranging the positioning mechanism, the outer part of the mounting plate is elastically and rotatably connected with the supporting block through the spring plate, so that the supporting block can be attached to walls with different radians to the maximum extent during movement, the positioning mechanism can adapt to walls or pipelines with different structures during water pipe traction, the adaptability of the device is effectively improved, meanwhile, a user can drive the fixed gear to rotate through the connecting motor, the specific angle of the mounting seat can be adjusted through the transmission gear by the fixed gear, the accuracy of angle adjustment of the device is effectively improved, and the adaptability of the user for traction and installation of water pipes with any angle is further facilitated.

3. According to the invention, by arranging the limiting mechanisms, when the two groups of limiting mechanisms are close to each other to clamp the external water pipe, the spring shaft can provide enough elasticity for the clamping plate for buffering, so that the damage of the water pipe caused by the overlarge contact water pressure between the clamping plate and the water pipe is prevented, and the stability and the protection performance of clamping the water pipe are improved.

Drawings

FIG. 1 is an exploded view of a body of the present invention;

FIG. 2 is an assembled view of the body of the present invention;

FIG. 3 is a front view of the body of the present invention;

FIG. 4 is a cross-sectional view of the present invention taken along the front view A-A of the body;

FIG. 5 is a schematic structural view of a limiting mechanism of the present invention;

FIG. 6 is an exploded view of the positioning mechanism of the present invention;

FIG. 7 is an assembly view of the positioning mechanism of the present invention;

FIG. 8 is an exploded view of the adjustment mechanism of the present invention;

fig. 9 is an assembly view of the adjustment mechanism of the present invention.

In the figure: 1-limiting mechanism, 2-positioning mechanism, 3-first threaded rod, 4-connecting gear, 5-limiting clamp shaft, 6-supporting frame, 7-connecting sleeve, 8-gear ring, 9-adjusting mechanism, 101-limiting plate, 102-threaded hole, 103-clamping plate, 104-spring shaft, 201-supporting block, 202-fixed gear, 203-connecting motor, 204-mounting seat, 205-transmission gear, 206-limiting head, 207-supporting shaft, 208-fixed caster, 209-positioning groove, 210-mounting plate, 211-spring plate, 901-fixed casing, 902-motor groove, 903-mounting groove, 904-second threaded rod, 905-clamping gear, 906-positioning gear, 907-limit ring, 908-connecting tooth slot, 909-supporting gear, 910-gear disc, 911-clamping groove and 912-connecting bottom shaft.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-9, an embodiment of the present invention is shown: an installation device for a water pipe of an external wall of a building comprises a limiting mechanism 1, a positioning mechanism 2, a first threaded rod 3, a connecting gear 4, a limiting clamping shaft 5, a supporting frame 6, a connecting sleeve 7, a gear ring 8 and an adjusting mechanism 9,

the outer terminal surface of adjustment mechanism 9 is used for the connecting sleeve 7 that supports through fixed plate fixedly connected with, and the even equidistance rotation joint of outer terminal surface that is located adjustment mechanism 9 has six first threaded rod 3 of group, the outer terminal surface fixedly connected with connecting gear 4 of first threaded rod 3, and be located the spacing card axle 5 of preceding terminal surface fixedly connected with of connecting gear 4, adjustment mechanism 9 has two sets of stop gear 1 with the outer terminal surface screw thread slip joint of first threaded rod 3, and the bottom face that is located adjustment mechanism 9 rotates the joint and has support frame 6, the up end fixedly connected with of support frame 6 is used for driven ring gear 8, the fixedly connected with of side end face center department of connecting sleeve 7 is used for the positioning mechanism 2 of regulation.

Limiting mechanism 1 includes limiting plate 101, screw hole 102, grip block 103 and spring axle 104, and the interior terminal surface symmetry fixedly connected with of limiting plate 101 has two sets of spring axles 104 that are used for elastic support, and limiting plate 101 passes through spring axle 104 elasticity fixedly connected with grip block 103, and the outer terminal surface symmetry of limiting plate 101 offers screw hole 102 that is used for the direction.

The positioning mechanism 2 comprises a supporting block 201, a fixed gear 202, a connecting motor 203, an installation base 204, a transmission gear 205, a limiting head 206, a supporting shaft 207, fixed casters 208, a positioning groove 209, an installation plate 210 and a spring plate 211, wherein three groups of limiting heads 206 for limiting are symmetrically and fixedly connected to the upper end surface of the installation plate 210 at equal intervals, the supporting block 201 is elastically and rotatably clamped on the side end surface of the installation plate 210 through the spring plate 211, the fixed casters 208 are fixedly connected to the bottom end surfaces of the supporting block 201 and the installation plate 210, the connecting motor 203 is fixedly connected to the upper end surface of the installation plate 210, the fixed gear 202 is fixedly connected to the bottom end surface of the connecting motor 203, the positioning groove 209 is formed in the center of the upper end surface of the installation plate 210, the transmission gear 205 is rotatably clamped on the inner end surface of the positioning.

The adjusting mechanism 9 comprises a fixed casing 901, a motor groove 902, a mounting groove 903, a second threaded rod 904, a clamping gear 905, a positioning gear 906, a limiting ring 907, a connecting tooth groove 908, a supporting gear 909, a gear disc 910, a clamping groove 911 and a connecting bottom shaft 912, wherein the upper end surface of the fixed casing 901 is provided with the motor groove 902, six groups of mounting grooves 903 are uniformly and equidistantly arranged on the side end surface of the fixed casing 901, the outer end surface of the fixed casing 901 is provided with a clamping groove 911 right opposite to the center of the inner end surface of the mounting groove 903, the inner end surface of the clamping groove 911 is rotationally clamped with the clamping gear 905 through the limiting ring 907, the positioning gear 906 is fixedly connected at the center of the front end surface of the clamping gear 905, the inner end surface of the mounting groove 903 is rotationally clamped with the supporting gear 909 symmetrically, the second threaded rod 904 is fixedly connected on the front end surface of the supporting gear 909, and the gear, and the bottom of the inner end surface of the gear plate 910 is provided with a connecting tooth groove 908, and the center of the bottom end surface of the gear plate 910 is fixedly connected with a connecting bottom shaft 912.

The fixedly connected with connector is located in the preceding terminal surface center department of second threaded rod 904, and is located the preceding terminal surface end fixedly connected with joint of first threaded rod 3, and second threaded rod 904 rotates the joint through connector and joint looks adaptation and then with first threaded rod 3, and six sets of turn grooves have been seted up to the even equidistance of interior terminal surface of connecting sleeve 7, and turn groove and 5 looks adaptations rotation joints of spacing calorie of axle.

The connecting gear 4 is engaged with the upper end face of the gear ring 8, the connecting tooth slot 908 is engaged with the clamping gear 905, and the clamping gear 905 is engaged with the supporting gear 909 through the positioning gear 906.

The connecting bottom shaft 912 is matched and fixedly sleeved with the support frame 6, the bottom end face of the support frame 6 is rotatably connected with the bottom of the inner end face of the connecting sleeve 7, the connecting motor 203 is meshed with the transmission gear 205 through the fixed gear 202 to drive the mounting seat 204 to rotate, and the mounting seat 204 is fixedly connected with the outside of the connecting sleeve 7.

The spring plate 211 comprises a rotating shaft rotatably connected with the supporting shaft 207, a limit baffle fixedly connected with the outer end face of the rotating shaft, and a connecting spring for connecting the baffle with the supporting shaft 207.

The second threaded rod 904 is identical to the first threaded rod 3 in structure, the screw directions of the second threaded rod 904 and the first threaded rod 3 are opposite, and the limiting plate 101 is in threaded connection with the second threaded rod 904 and the first threaded rod 3 in a matched mode. .

The working principle is as follows: when using, as shown in fig. 6 and 7, the user can fix a position outside haulage rope through multigroup spacing head 206, multigroup spacing head 206 can make mounting panel 210 stabilize on one pulls the plane simultaneously, the phenomenon of displacement about preventing appearing has improved the stability of follow-up water pipe of pulling, simultaneously when using, the user can carry out quick regulation to the towed angle of water pipe according to the demand, if need transversely pull installation outside water pipe, user's accessible control mechanism starts connection motor 203 this moment, connection motor 203 can drive fixed gear 202 and rotate, and then make fixed gear 202 can drive gear 205 and rotate, thereby conveniently adjust the support angle to mount pad 204, when the support angle of mount pad 204 is adjusted to vertical state, then the user can carry out quick traction to horizontal water pipe, simultaneously the setting of two sets of spring boards 211 and supporting shoe 201 can also conveniently be to the pipeline and possess certain wall radian to the pipeline When the positioning mechanism 2 moves in the wall or the pipeline, the spring plate 211 can provide enough elasticity for the supporting block 201, so that the supporting block 201 can rotate and shift in accordance with the angle of the pipeline or the wall, the supporting stability during the movement of the water pipe can be improved to the maximum extent, the efficiency of the subsequent water pipe installation is improved,

before limiting, a user can install an external transmission motor on the upper portion of the fixed casing 901 through the motor slot 902, thereby facilitating subsequent rapid traction limiting operation, when limiting and installing multiple water pipes simultaneously, as shown in fig. 1, 4, 8 and 9, the user can position the multiple water pipes between two sets of limiting mechanisms 1, then start the transmission motor through the external control mechanism, so that the transmission motor can drive the gear plate 910 to rapidly rotate inside the fixed casing 901, when the gear plate 910 rotates, on one hand, the gear plate 910 can drive six sets of clamping gears 905 to rotate through the internal connecting tooth slots 908, and simultaneously, the connecting bottom shaft 912 at the bottom of the gear plate 910 can drive the gear ring 8 to rotate through the support frame 6, thereby, when the clamping gears 905 rotate, the two sets of support gears 909 can be driven to rotate, and then driven second threaded rod 904 and rotated, make stop gear 1 on second threaded rod 904 upper portion can be to anterior displacement, meanwhile, gear ring 8 is when rotating, can drive first threaded rod 3 through connecting gear 4 and rotate, and first threaded rod 3 is opposite with second threaded rod 904's screw thread direction, the event makes two sets of stop gear 1 can carry out the centre gripping displacement between first threaded rod 3 and second threaded rod 904, and then carry out stable centre gripping operation to outside water pipe, simultaneously when carrying out the centre gripping, spring shaft 104 can support for grip block 103 provides sufficient elasticity, prevent to cause the damage of water pipe with the water pipe contact water pressure is too big, the improvement carries out the stability and the protectiveness of centre gripping to the water pipe.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.