CN218330939U

CN218330939U - Drawing test device

Info

Publication number: CN218330939U
Application number: CN202222358157.4U
Authority: CN
Inventors: 王文福; 刘建民
Original assignee: Henan Bein Construction Engineering Co ltd
Current assignee: Henan Bein Construction Engineering Co ltd
Priority date: 2022-09-05
Filing date: 2022-09-05
Publication date: 2023-01-17
Anticipated expiration: 2032-09-05

Abstract

The utility model belongs to the technical field of the appearance of drawing and specifically relates to a draw test device is related to, it includes hand pump, hydraulic cylinder, connect in the hand pump with oil pipe between the hydraulic cylinder still include fixed mounting in the solid fixed ring of hydraulic cylinder tip, wind a plurality of centre gripping subassemblies that solid fixed ring circumference evenly set up, the centre gripping subassembly is including being located in the solid fixed ring just be on a parallel with the supporting rod of solid fixed ring axis, set up in the supporting rod with connecting piece between the solid fixed ring, the connecting piece include fixed connection in the supporting rod and with supporting rod looks vertically fixed sleeve, fixed sleeve follows gu fixed ring radial sliding connection in gu fixed ring, gu still be equipped with the drive assembly who is used for driving fixed sleeve and removes on the fixed ring. The method and the device have the effect of guaranteeing the accuracy of the drawing test.

Description

Drawing test device

Technical Field

The application relates to the field of drawing instruments, in particular to a drawing test device.

Background

At present, two fixing modes of a reserved channel and a rear channel are commonly adopted by overhead line system hanging posts in domestic tunnels. The two modes have respective advantages and disadvantages, wherein the construction of the rear-mounted channel is simple and convenient, and the cost is greatly reduced compared with that of the pre-buried channel. The post-channel construction mostly adopts the installation form of embedding a chemical anchor bolt, and the construction process comprises positioning measurement, drilling, embedding the chemical anchor bolt, drawing test, channel installation and the like.

The method comprises the steps of performing positioning measurement on a construction site, then, using an impact drill to perform drilling operation, using a steel brush to brush loose concrete scraps on the inner wall of a hole, then blowing floating ash and scraps in the hole out by using an air cylinder, injecting chemical anchor bolt glue according to construction experience and embedding the chemical anchor bolt glue into the chemical anchor bolt, waiting for the complete curing of the chemical anchor bolt glue according to the temperature and time required by a product, strictly prohibiting the triggering of the chemical anchor bolt within the glue curing time to prevent curing failure, using a drawing instrument to perform drawing test on the chemical anchor bolt after curing, and installing a contact net channel after meeting the design requirements.

The drawing instrument is suitable for field detection of anchoring force of an anchoring body, and the drawing instrument and the anchorage device are sequentially sleeved on the anchor bolt during detection, so that the wall, the drawing instrument and the anchorage device are tightly attached, and the anchorage device is fixed through the clamping mechanism. Current ground tackle generally includes anchor ring and clamping piece, come the anchor ring to fix on the stock through placing the clamping piece with stock assorted in anchor ring inside, be about to the clamping piece place the position between stock and anchor ring, fill the space between stock and ground tackle, utilize the friction between clamping piece and the stock, the anchor ring is fixed in the friction between clamping piece and the anchor ring, because the difference of stock thickness, the clamping piece also has the various models corresponding with the stock, when doing and drawing the experiment, need carry the clamping piece of different models, the weight of both having increased the carrying, lose the clamping piece very easily again.

To above-mentioned technical problem, chinese utility model patent that application number CN201821797490.2 does discloses a stock draws stationary fixture for appearance, and its technical essential lies in: including drawing the appearance, the upside of drawing the appearance is equipped with the anchor ring, the inboard of drawing appearance and anchor ring is all inserted and is equipped with the stock, the tight ballonet of inner fixedly connected with clamp of anchor ring, and press from both sides tight ballonet and be located between anchor ring and the stock, the side of anchor ring is connected with fixed shell, main gasbag has been placed to the inboard of fixed shell, the upper end of fixed shell is dug there is the through-hole, main gasbag and clamp are connected with communicating pipe between the ballonet, and communicating pipe pass the through-hole and all communicate with main gasbag and clamp ballonet, one side that the anchor ring was kept away from to main gasbag is equipped with the clamp plate, and clamp plate outer end and fixed shell inner wall sliding connection, the one end middle part fixedly connected with fixed block of main gasbag is kept away from to the clamp plate.

In view of the above related technologies, the inventor believes that, in the foregoing solution, the air bag structure directly clamps the anchor, but because the air bag itself has elasticity, when a pulling force is generated on the anchor, the test result is easily inaccurate due to deformation.

Disclosure of Invention

In order to guarantee the accuracy of the drawing test, the application provides a drawing test device.

The application provides a draw test device adopts following technical scheme:

the utility model provides a pull-out test device, includes hand pump, hydraulic cylinder, connect in the hand pump with oil pipe between the hydraulic cylinder still include fixed mounting in the solid fixed ring of hydraulic cylinder tip, wind gu a plurality of centre gripping subassemblies that solid fixed ring circumference evenly set up, the centre gripping subassembly is including being located in gu the fixed ring just be on a parallel with the holding rod of fixed ring axis, set up in the holding rod with connecting piece between the solid fixed ring, the connecting piece include fixed connection in the holding rod and with holding rod looks vertically fixed sleeve, fixed sleeve follows gu fixed ring radial sliding connection in gu fixed ring, gu still be equipped with the drive assembly who is used for driving fixed sleeve and removes on the fixed ring.

Preferably, the drive assembly including set up in gu fixed ring just around its hoop extension the installation annular, set up in a plurality of cyclic annular trachea in the installation annular, wind gu fixed ring circumference arrange and respectively with a plurality of cyclic annular trachea be linked together first breather pipe, fixed mounting in gu the installation shell of fixed ring outer wall, set up in gasbag in the installation shell, communicate in gasbag and one of them second intercommunication trachea between the cyclic annular trachea, set up in the installation shell and butt in the push pedal of gasbag, set up in the through-hole of installation shell, connect in the push pedal and the push rod of wearing out by the through-hole, gu fixed ring inner wall set up a plurality of one-to-one in fixed sleeve and communicate in jack in the installation annular, fixed sleeve slides peg graft in the jack, the centre gripping subassembly still include one-to-one fixed sleeve and communicate respectively in cyclic annular trachea's air cock, the air cock slides peg graft in fixed sleeve is inboard.

Preferably, the fixed sleeve is located the one end outer wall fixedly connected with spacing ring in the installation annular groove.

Preferably, a return spring is arranged between the limiting ring and the inner wall of the mounting ring groove, and the return spring is sleeved outside the fixing sleeve.

Preferably, the push rod threaded connection in the through-hole, the push rod is located the outside one end fixedly connected with knob of installation shell, the push pedal is close to push rod one side fixedly connected with fixed block, the connecting hole has been seted up to the fixed block, the push rod rotate connect in the connecting hole, the spacing annular of extending around its circumference is seted up to the connecting hole inner wall, push rod perisporium fixedly connected with rotate connect in the go-between in the spacing annular.

Preferably, the surface of the clamping rod, which is close to the axis of the fixed ring, is provided with a plurality of convex ribs.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the anchor body is subjected to drawing test, the hydraulic oil cylinder and the fixing ring are respectively sleeved outside the anchor body, the push rod in threaded connection with the through hole is enabled to push the push plate to move by rotating the knob, the air bag is extruded, air in the air bag enters the annular air pipe through the second communicating air pipe, and is pressurized towards the inside of the fixing sleeve through the plurality of air nozzles under the cooperation of the first communicating air pipe, so that the fixing sleeve is pushed to move radially along the fixing ring, the plurality of clamping rods clamp the anchor body, the connection is stable, the looseness is not easy to occur, and the pull test can be adapted to the anchor bodies with different specifications for drawing detection;

2. after the test is finished, the push rod and the push plate move towards the direction far away from the air bag by reversely rotating the knob, and when the air bag loses pressure, the fixing sleeve moves towards the mounting ring groove under the matching of the limiting ring and the reset spring, so that the clamping rod is reset and separated from the anchoring body, and the operation is more convenient;

3. under the cooperation of spacing annular and go-between to inject the axial relative position between push pedal and the push rod, make the push rod can drive the push rod and remove at rotatory in-process, connect more stably.

Drawings

Fig. 1 is an overall structural schematic diagram of the present embodiment.

Fig. 2 is a sectional view of the fixing ring in the present embodiment.

Fig. 3 is a partially enlarged view of a portion a in fig. 2.

Description of the reference numerals: 1. a manual pump; 2. a hydraulic cylinder; 3. an oil pipe; 4. a fixing ring; 5. a clamping assembly; 6. a clamping rod; 7. a connecting member; 8. a fixed sleeve; 9. a convex edge; 10. a drive assembly; 11. mounting a ring groove; 12. an annular air pipe; 13. a first communicating pipe; 14. mounting a shell; 15. an air bag; 16. the second is communicated with the air pipe; 17. pushing a plate; 18. a through hole; 19. a push rod; 20. a jack; 21. an air tap; 22. a limiting ring; 23. a return spring; 24. a knob; 25. a fixed block; 26. connecting holes; 27. a limit ring groove; 28. and (7) connecting rings.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a drawing test device. Referring to fig. 1-3, the drawing test device comprises a manual pump 1, a hydraulic oil cylinder 2, an oil pipe 3 connected between the manual pump 1 and the hydraulic oil cylinder 2, a fixing ring 4 fixedly installed at the end part of the hydraulic oil cylinder 2, and a plurality of clamping assemblies 5 uniformly arranged around the circumference of the fixing ring 4.

The centre gripping subassembly 5 is including being located solid fixed ring 4 and being on a parallel with the supporting rod 6 of solid fixed ring 4 axis, set up three connecting pieces 7 between supporting rod 6 and solid fixed ring 4, three connecting pieces 7 of group evenly arrange along 6 length direction of supporting rod, connecting piece 7 include fixed connection in supporting rod 6 and with supporting rod 6 looks vertically fixed sleeve 8, fixed sleeve 8 is along solid fixed ring 4 radial sliding connection in solid fixed ring 4, the surface that supporting rod 6 is close to solid fixed ring 4 axis is equipped with a plurality of beads 9.

The fixing ring 4 is further provided with a driving assembly 10 for driving the fixing sleeve 8 to move. The driving assembly 10 includes a mounting ring groove 11 which is arranged on the fixing ring 4 and extends circumferentially around the fixing ring, three annular air pipes 12 arranged in the mounting ring groove 11, a first ventilation pipe 13 which is arranged circumferentially around the fixing ring 4 and is communicated with the three annular air pipes 12 respectively, a mounting shell 14 which is fixedly mounted on the outer wall of the fixing ring 4, an air bag 15 arranged in the mounting shell 14, a second ventilation pipe 16 communicated between the air bag 15 and one of the annular air pipes 12, a push plate 17 which is arranged in the mounting shell 14 and is abutted to the air bag 15, a through hole 18 arranged in the mounting shell 14, and a push rod 19 which is connected to the push plate 17 and penetrates out of the through hole 18.

Wherein, three cyclic annular trachea 12 evenly arranges and the one-to-one is to three connecting pieces 7 of group along solid fixed ring 4 axial, gu fixed ring 4 inner wall has seted up a plurality of one-to-one and has just been linked together in the jack 20 of mounting ring groove 11, gu fixed sleeve 8 all corresponds to slide and peg graft in jack 20, centre gripping subassembly 5 still includes the one-to-one and just communicates respectively in cyclic annular trachea 12's air cock 21, and air cock 21 slides and pegs graft in fixed sleeve 8 inboardly.

In order to enable the clamping rod 6 to be reset more easily, the outer wall of one end of the fixing sleeve 8, which is located in the installation ring groove 11, is fixedly connected with a limiting ring 22, a reset spring 23 is arranged between the limiting ring 22 and the inner wall of the installation ring groove 11, and the reset spring 23 is sleeved outside the fixing sleeve 8.

The push rod 19 is in threaded connection with the through hole 18, the push rod 19 is located the outside one end fixedly connected with knob 24 of installation shell 14, the push plate 17 is close to the fixed block 25 of the fixedly connected with in push rod 19 one side, the fixed block 25 has seted up connecting hole 26, the push rod 19 rotates to be connected in connecting hole 26, the spacing ring 22 groove that extends around its circumference is seted up to the connecting hole 26 inner wall, the go-between 28 in spacing ring 22 inslot is connected in the rotation of push rod 19 perisporium fixedly connected with rotation, under the cooperation of spacing ring 22 groove and go-between 28, in order to prescribe a limit to the axial relative position between push plate 17 and push rod 19, make the push rod 19 can drive the push rod 19 and remove in rotatory process, it is more stable to connect.

The implementation principle of the drawing test device in the embodiment of the application is as follows:

when the anchor body is subjected to drawing test, the hydraulic oil cylinder 2 and the fixing ring 4 are respectively sleeved outside the anchor body, the push rod 19 in threaded connection with the through hole 18 pushes the push plate 17 to move by rotating the knob 24, the air bag 15 is extruded, air in the air bag 15 enters the annular air pipe 12 through the second communicating air pipe 16, and is pressurized towards the inside of the fixing sleeve 8 through the plurality of air nozzles 21 under the coordination of the first communicating pipe 13, so that the fixing sleeve 8 is pushed to move along the radial direction of the fixing ring 4, the plurality of clamping rods 6 clamp the anchor body, the connection is stable, the loosening is not easy to occur, and the pull test can be carried out by adapting to the anchor bodies with different specifications;

after the experiment, through the reverse rotation knob 24, make push rod 19 and push pedal 17 remove towards the direction of keeping away from gasbag 15, after gasbag 15 loses pressure, fixed sleeve 8 removes in mounting ring groove 11 under spacing ring 22 and reset spring 23's cooperation, makes clamping rod 6 reset, breaks away from the anchor body, and the operation is more convenient.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a draw test device, includes hand pump (1), hydraulic cylinder (2), connect in hand pump (1) with oil pipe (3) between hydraulic cylinder (2), its characterized in that: still including fixed mounting in solid fixed ring (4) of hydraulic cylinder (2) tip, wind a plurality of centre gripping subassemblies (5) that solid fixed ring (4) circumference evenly set up, centre gripping subassembly (5) including be located gu in fixed ring (4) and be on a parallel with gu the supporting rod (6) of fixed ring (4) axis, set up in supporting rod (6) with connecting piece (7) between solid fixed ring (4), connecting piece (7) including fixed connection in supporting rod (6) and with supporting rod (6) looks vertically fixed sleeve (8), fixed sleeve (8) are followed gu fixed ring (4) radial sliding connection in gu fixed ring (4), gu still be equipped with on fixed ring (4) and be used for driving drive assembly (10) that fixed sleeve (8) removed.

2. A pull test apparatus according to claim 1, wherein: the driving assembly (10) comprises a mounting ring groove (11) which is arranged in the fixing ring (4) and extends annularly around the fixing ring, a plurality of annular air pipes (12) which are arranged in the mounting ring groove (11), a first connecting pipe (13) which is arranged around the fixing ring (4) in the circumferential direction and is respectively communicated with the plurality of annular air pipes (12), a mounting shell (14) which is fixedly arranged on the outer wall of the fixing ring (4), an air bag (15) which is arranged in the mounting shell (14), a second connecting air pipe (16) which is communicated between the air bag (15) and one of the annular air pipes (12), a push plate (17) which is arranged in the mounting shell (14) and is abutted against the air bag (15), a through hole (18) which is arranged in the mounting shell (14), and a push rod (19) which is connected with the push plate (17) and is penetrated out through the through hole (18), the inner wall of the fixing ring (4) is provided with a plurality of jacks (20) which correspond to the fixing sleeves (8) one by one and are communicated with the mounting ring groove (11), the fixed sleeve (8) is inserted in the jack (20) in a sliding way, the clamping component (5) also comprises air nozzles (21) which are corresponding to the fixed sleeves (8) one by one and are respectively communicated with the annular air pipes (12), the air tap (21) is inserted into the inner side of the fixed sleeve (8) in a sliding manner.

3. A pull test apparatus according to claim 2, wherein: the fixing sleeve (8) is located one end outer wall fixedly connected with spacing ring (22) in the mounting ring groove (11).

4. A pull test apparatus as claimed in claim 3, wherein: spacing ring (22) with be equipped with reset spring (23) between installation annular (11) inner wall, reset spring (23) cover is located fixed sleeve (8) are outside.

5. A pull test apparatus as claimed in claim 2, wherein: push rod (19) threaded connection in through-hole (18), push rod (19) are located the outside one end fixedly connected with knob (24) of installation shell (14), push pedal (17) are close to push rod (19) one side fixedly connected with fixed block (25), connecting hole (26) have been seted up to fixed block (25), push rod (19) rotate connect in connecting hole (26), spacing ring (22) groove around its circumference extension is seted up to connecting hole (26) inner wall, push rod (19) perisporium fixedly connected with rotate connect in go-between (28) in spacing ring (22) inslot.

6. The pull test apparatus of claim 5, wherein: the surface of the clamping rod (6) close to the axis of the fixing ring (4) is provided with a plurality of convex ribs (9).