CN113669022A

CN113669022A - Safety pad fork for geotechnical engineering investigation

Info

Publication number: CN113669022A
Application number: CN202110976927.9A
Authority: CN
Inventors: 张云; 刘广进; 佟海; 高海军
Original assignee: Shangxi Yunquan Rock Engineering Technology Co ltd
Current assignee: Shangxi Yunquan Rock Engineering Technology Co ltd
Priority date: 2021-08-24
Filing date: 2021-08-24
Publication date: 2021-11-19

Abstract

The invention provides a safety pad fork for geotechnical engineering investigation, which comprises: the side wall of the annular protective sleeve is symmetrically provided with 2 through grooves; one end of each cushion fork is arranged in the corresponding through groove and can slide along the inner wall of the annular protection sleeve; the side wall of each cushion fork is provided with at least 2 oblique sliding chutes; the 2 arc-shaped blocks are arranged on one side of the corresponding cushion fork, and the 2 arc-shaped blocks are not on the same plane; the side wall of each arc-shaped block is provided with at least 2 radial sliding grooves; at least 4 pressing blocks are arranged in the annular protective sleeve, one side of each pressing block is slidably arranged on the corresponding oblique sliding groove, and the other side of each pressing block is slidably arranged on the corresponding radial sliding groove; with the rotation of 2 pallet forks, 4 piece at least all close to or keep away from in step. The device mainly makes the compact heap of drilling rod week side compress tightly on the drilling rod through the cooperation of fork and arc piece, avoids appearing skidding, deflection or rocking phenomenon.

Description

Safety pad fork for geotechnical engineering investigation

Technical Field

The invention relates to the technical field of geotechnical exploration equipment, in particular to a safety pad fork for geotechnical engineering exploration.

Background

In the process of geotechnical exploration, a drilling machine is required to be used for core sampling, and the replacement and the disassembly of a drill rod are indispensable procedures in the actual sampling process and after the sampling is finished. In the process of replacing and disassembling the drill rod, the connected drill rod needs to be taken down from the suspended drill rod, and in order to ensure the normal and reliable completion of the process, an auxiliary process is needed to fix the drill rod.

Currently, the drill rod is mainly fixed by a cushion fork. The existing cushion fork is usually composed of a connecting handle and a horseshoe-shaped fork body, in the using process, in order to avoid drawing a drill rod from an opening of the horseshoe-shaped fork body, a fixing part is usually additionally arranged on the horseshoe-shaped fork body, when the cushion fork is used, the opening of the horseshoe-shaped fork body is inserted into a cut of a lock joint of the drill rod, and the drill rod is limited in the fork body by the fixing part, so that the drill rod can be fixed.

However, most of the existing cushion forks pay attention to the limiting and fixing of the drill rod in the process of braking the drill rod, and the problem of slipping of the drill rod on the cushion fork is ignored. At change and dismantlement in-process, not only will notice the spacing fixed to the drilling rod, still will rotate the drilling rod, and it is little to the braking effort of drilling rod when the fork of a mattress, leads to the drilling rod to skid easily, causes to change and dismantles the inefficiency, the unable problem of guaranteeing of reliability. Therefore, it is necessary to provide a safety pallet fork for geotechnical engineering investigation, which has a simple structure and high operation efficiency.

Disclosure of Invention

In order to solve the above problems, an object of the present invention is to provide a safety pallet fork for geotechnical engineering investigation.

In order to achieve the above object, the technical solution of the present invention is as follows.

A safety pallet fork for geotechnical engineering investigation, comprising:

the side wall of the annular protective sleeve is symmetrically provided with 2 through grooves;

one end of each cushion fork is arranged in the corresponding through groove and can slide along the inner wall of the annular protection sleeve; at least 2 oblique sliding grooves are formed in the side wall of each cushion fork;

the 2 arc-shaped blocks are arranged on one side of the corresponding cushion fork, and the 2 arc-shaped blocks are not on the same plane; the side wall of each arc-shaped block is provided with at least 2 radial sliding grooves;

at least 4 pressing blocks are arranged in the annular protecting sleeve, one side of each pressing block is slidably arranged on the corresponding oblique sliding groove, and the other side of each pressing block is slidably arranged on the corresponding radial sliding groove; with the rotation of 2 said pallet forks, 4 at least said compact heap all close to or keep away from in step.

Further, the ring-shaped protecting jacket comprises a first shell, a second shell and 2 cushion blocks for connecting the first shell and the second shell; two ends of each cushion block are inserted into the first shell and the second shell.

Furthermore, each cushion block is provided with a sliding channel, and one end of each cushion fork is slidably arranged in the corresponding sliding channel.

Further, the 2 pad forks are respectively marked as a first pad fork and a second pad fork, and the 2 arc-shaped blocks are respectively marked as a first arc-shaped block and a second arc-shaped block; the first arc-shaped block is arranged on the upper side of the first cushion fork; the second arc-shaped block is arranged on the lower side of the second cushion fork.

Furthermore, one side of each pressing block is provided with a first sliding block, the other side of each pressing block is provided with a second sliding block, each first sliding block is slidably arranged in a radial sliding groove corresponding to the first sliding block, and each second sliding block is slidably arranged in an oblique sliding groove corresponding to the second sliding block.

Furthermore, each radial sliding groove is internally provided with a buffer spring, one end of each buffer spring is fixedly connected with the corresponding first sliding block, and the other end of each buffer spring is fixedly connected with the inner wall of the annular protecting sleeve.

Furthermore, a pressing plate is arranged on one side, facing the axis of the annular protecting sleeve, of each pressing block, and each pressing plate is hinged with the corresponding pressing block; every compact heap on the pallet fork all is through connecting rod series connection each other, every all be provided with the connecting hole on the compact heap, every the both ends of connecting rod are all worn to establish on rather than two adjacent connecting holes.

Further, still include:

one end of the connector is provided with a threaded hole matched with one end of the drill rod;

the connecting lantern ring is sleeved on the connecting head;

the connecting arms are arranged on two sides of the connecting sleeve ring, one end of each connecting arm is hinged with the side wall of the connecting sleeve ring, and the other end of each connecting arm is detachably connected with one end, extending out of the corresponding through groove, of the corresponding cushion fork;

when the one end of drilling rod passes annular lag just is close to gradually during the connector, along with 2 the rotation of pallet fork, the connector compresses tightly the drilling rod with the one end threaded connection of drilling rod, 4 compact heap at least simultaneously.

Furthermore, a spring plate assembly is arranged in the threaded hole and comprises a spring plate and a compression elastic piece, one end of the compression elastic piece is fixedly connected with the inner wall of the threaded hole, and the other end of the compression elastic piece is fixedly connected with the spring plate.

The invention has the beneficial effects that:

1. the device of the invention mainly ensures that the pressing blocks on the peripheral side of the drill rod gradually draw close towards the drill rod and are pressed on the drill rod through the matching of the cushion fork and the arc-shaped block, thereby realizing the pressing and fixing of the drill rod and avoiding the slipping phenomenon of the drill rod in the replacement and disassembly processes. And because 2 arc pieces are not on the coplanar for the compact heap of drilling rod both sides is located different heights, can further strengthen the fixed to the drilling rod, avoids the drilling rod to take place to deflect or rock in change and the dismantlement process.

2. The device mainly utilizes the symmetrical cushion fork and the asymmetrical pressing block to fix the drill rod, avoids the slipping phenomenon, has simple structure and high operation efficiency, and can further realize the stabilizing effect on the drill rod.

3. The device of the invention also utilizes the connecting lantern ring and 2 connecting arms to realize the tight connection of the connector and the drill rod, and realizes the lengthening and extension of the drill rod while fixing the drill rod.

Drawings

Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.

FIG. 2 is a schematic sectional view of B-B' of FIG. 1.

FIG. 3 is a schematic sectional view of A-A' in FIG. 1.

Fig. 4 is a schematic structural view of a fork in embodiment 1 of the present invention.

Fig. 5 is a schematic structural diagram of a pressing block in embodiment 1 of the present invention.

Fig. 6 is a schematic structural diagram of embodiment 2 of the present invention.

Fig. 7 is a schematic view of an assembly structure of the connector and the elastic piece assembly in embodiment 2 of the present invention.

In the figure: 1. a ring-shaped protective sleeve; 11. a first housing; 12. a second housing; 13. cushion blocks; 131. a slide channel; 14. a through groove; 2. a cushion fork; 21. a first cushion fork; 22. a second fork; 23. an oblique chute; 3. an arc-shaped block; 31. a first arc-shaped block; 32. a second arc-shaped block; 33. a radial chute; 34. a buffer spring; 4. a compression block; 41. a first slider; 42. a second slider; 43. pressing a plate; 44. a connecting rod; 45. connecting holes;

5. a connector; 51. a threaded hole; 6. a connecting lantern ring; 7. a connecting arm; 8. a spring plate assembly; 81. a spring plate; 82. compressing the elastic piece; 9. and (5) drilling a rod.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

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.

Example 1

Fig. 1 is a schematic structural view of a safety pallet fork for geotechnical engineering investigation according to an embodiment of the present invention. This safety pad fork is used in geotechnical engineering reconnaissance includes: annular lag 1, 2

pallet fork

2, 2

arc piece

3 and 4 piece 4 at least compress tightly of piece.

The side wall of the annular protecting sleeve 1 is symmetrically provided with 2 through grooves 14; the 2 through grooves are respectively marked as a first through groove and a second through groove.

Referring to fig. 1 and 4, one end of each of the 2 cushion forks 2 is disposed in the corresponding through groove 14 and can slide along the inner wall of the annular protection sleeve 1; the other end of the connecting rod extends out of a corresponding through groove. At least 2 oblique sliding grooves 23 are formed in the side wall of each cushion fork 2. Specifically, the cushion fork comprises a fork rod and an arc-shaped fork body, and the fork rod and the arc-shaped fork body are integrally connected. But a lateral wall of the arc fork body and the inner wall sliding connection of annular lag, the one end of fork arm extends into corresponding logical groove, and is fixed with the lateral wall integral type of the arc fork body. 2 slant spouts set up respectively on the both ends of arc forked body.

The 2 arc-shaped blocks 3 are arranged on one side of the corresponding cushion fork 2, and the 2 arc-shaped blocks 3 are not on the same plane; for example, 2 arc pieces set up respectively in the both sides of stepping up the fork, and 2 arc pieces all with the inner wall fixed connection of annular lag. At least 2 radial sliding grooves 33 are arranged on the side wall of each arc-shaped block 3. Each radial sliding groove corresponds to the corresponding inclined sliding groove one by one. For example, each radial runner extends towards the centre of the annular shield sock and is located in a radial direction of the central bore of the annular shield sock. An acute angle is formed between the oblique sliding groove and the mirror image sliding groove, and the oblique sliding groove is tangentially arranged on the side edge of the central hole of the annular protecting sleeve.

At least 4 pressing blocks 4 are arranged in the annular protecting sleeve 1, and the two sides of each pressing block correspond to the corresponding radial sliding grooves and the corresponding inclined sliding grooves one to one. One side of each pressing block 4 is slidably arranged on the corresponding oblique sliding chute 23, and the other side of each pressing block is slidably arranged on the corresponding radial sliding chute 33; along with the rotation of 2

pallet forks

2, 4 compact heap 4 at least are all close to in step or keep away from, and when 4 compact heap were close to in step, 4 compact heap all compressed tightly on the drilling rod for form stabilizing action to the drilling rod.

In this embodiment, the device mainly through the cooperation of fork and arc piece, makes the compact heap of drilling rod week side draw close gradually towards the drilling rod to compress tightly on the drilling rod, realize compressing tightly fixedly to the drilling rod, avoid the drilling rod to appear skidding phenomenon changing with the dismantlement in-process. And because 2 arc pieces are not on the coplanar for the compact heap of drilling rod both sides is located different heights, can further strengthen the fixed to the drilling rod, avoids the drilling rod to take place to deflect or rock in change and the dismantlement process.

Referring to fig. 1 to 3, the ring-shaped protecting jacket 1 includes a first casing 11, a

second casing

12, and 2 spacers 13 for connecting the first casing 11 and the second casing 12; both ends of each spacer 13 are inserted into the first and second housings 1 and 12. Specifically, each pad block 13 is provided with a sliding channel 131, and one end of each pad fork 2 is slidably arranged in the corresponding sliding channel 131. That is, as the fork slides, one end of the arc-shaped fork body on the fork can be inserted into the corresponding sliding channel for fixing the fork.

Specifically, 2 pad forks 2 are respectively marked as a first pad fork 21 and a

second pad fork

22, and 2 arc-shaped blocks 3 are respectively marked as a first arc-shaped block 31 and a second arc-shaped block 32; the 2 through grooves are respectively marked as a first through groove and a second through groove. Wherein, the first arc block 31 is arranged on the upper side of the first cushion fork 21; the second arcuate block 32 is disposed on the underside of the second pallet fork 22. The first pad fork is slidably arranged in the first through groove, and the second pad fork is slidably arranged in the second through groove. The first arc-shaped block is arranged on the upper side of the first through groove; the second arc-shaped block is arranged on the lower side of the second through groove. Therefore, the pressing blocks between the cushion fork and the arc-shaped blocks are not on the same plane.

Referring to fig. 5, one side of each pressing block 4 is provided with a first sliding block 41, the other side of each pressing block 4 is provided with a second sliding block 42, each first sliding block 41 is slidably disposed in the corresponding radial sliding groove 33, and each second sliding block 42 is slidably disposed in the corresponding oblique sliding groove 23. Specifically, each radial sliding groove 33 is internally provided with a buffer spring 34, one end of each buffer spring 34 is fixedly connected with the corresponding first sliding block 41, and the other end of each buffer spring 34 is fixedly connected with the inner wall of the annular protection sleeve 1. Form cushioning effect to the compact heap through buffer spring, and can promote the compact heap and remove towards the drilling rod, further form stabilizing action to the drilling rod.

A pressing plate 43 is arranged on one side of each pressing block 4 facing the axis of the annular protecting sleeve 1, and each pressing plate 43 is hinged with the corresponding pressing block 4; the compact heap 4 on every pallet fork 2 all is through connecting rod 44 series connection each other, all is provided with connecting hole 45 on every compact heap 4, and the both ends of every connecting rod 44 are all worn to establish on rather than two adjacent connecting holes 45. Along with the compact heap removes towards the drilling rod, the both ends of connecting rod all extend into rather than adjacent connecting hole. Certainly, in order to further improve the stabilizing effect to the drilling rod, have a plurality of non-slip raised on the surface of clamp plate, the material of non-slip raised is elastic silica gel.

Example 2

Fig. 6 is a schematic structural view of a safety pallet fork for geotechnical engineering investigation according to an embodiment of the present invention. A safety pallet fork for geotechnical engineering investigation, which has basically the same structure as that of embodiment 1, and is different from the safety pallet fork, further comprising: connector 5,

link ring

6, 2 linking arms 7 and shell fragment subassembly 8.

Referring to fig. 6 to 7, one end of the connector 5 has a threaded hole 51 matching with one end of the drill rod 9; the spring assembly 8 is disposed in the threaded hole 51, and the spring assembly 8 includes a spring 81 and a pressing elastic member 82, for example, the pressing elastic member is a spring. One end of the pressing elastic element 82 is fixedly connected with the inner wall of the threaded hole 51, and the other end thereof is fixedly connected with the elastic sheet 81. The elastic sheet assembly is used for forming a stable connection effect on the drill rod.

The connecting lantern ring 6 is sleeved on the connector 5; 2 linking arms 7 set up in the both sides of connecting the lantern ring 6, and the one end of every linking arm 7 all is articulated with the lateral wall of connecting the lantern ring 6, and the other end of every linking arm 7 all extends the one end in logical groove 14 that corresponds rather than the pallet fork 2 that corresponds and can dismantle the connection. When one end of the drill rod 9 penetrates through the annular protection sleeve 1 and is gradually close to the connector 5, along with the rotation of the 2 cushion forks 2, the connector 5 is in threaded connection with one end of the drill rod 9, and meanwhile, at least 4 pressing blocks 4 press the drill rod 9.

In this embodiment, the device still utilizes connecting collar and 2 linking arms to realize zonulae occludens with connector and drilling rod, when fixed drilling rod, realizes extending the extension of drilling rod.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a geotechnical engineering reconnaissance is with safe pallet fork which characterized in that includes:

the side wall of the annular protective sleeve (1) is symmetrically provided with 2 through grooves (14);

one end of each cushion fork (2) is arranged in the corresponding through groove (14) and can slide along the inner wall of the annular protection sleeve (1); the side wall of each cushion fork (2) is provided with at least 2 inclined sliding grooves (23);

the 2 arc-shaped blocks (3) are arranged on one side of the corresponding cushion fork (2), and the 2 arc-shaped blocks (3) are not on the same plane; the side wall of each arc-shaped block (3) is provided with at least 2 radial sliding grooves (33);

at least 4 pressing blocks (4) are arranged in the annular protecting sleeve (1), one side of each pressing block (4) is slidably arranged on the corresponding oblique sliding groove (23), and the other side of each pressing block is slidably arranged on the corresponding radial sliding groove (33); with the rotation of the 2 cushion forks (2), at least 4 pressing blocks (4) are synchronously close to or far away.

2. The safety fork for geotechnical engineering investigation according to claim 1, characterized in that, said ring-shaped protecting jacket (1) comprises a first shell (11), a second shell (12) and 2 blocks (13) for connecting said first shell (11) and said second shell (12); two ends of each cushion block (13) are inserted into the first shell (1) and the second shell (12).

3. The safety fork for geotechnical engineering investigation of claim 2, characterized in that, each cushion block (13) is provided with a sliding channel (131), and one end of each fork (2) is slidably arranged in the corresponding sliding channel (131).

4. The safety fork for geotechnical engineering investigation of claim 1, characterized in that, 2 said fork pads (2) are respectively marked as a first fork pad (21) and a second fork pad (22), and 2 said arc blocks (3) are respectively marked as a first arc block (31) and a second arc block (32); the first arc-shaped block (31) is arranged on the upper side of the first cushion fork (21); the second arc-shaped block (32) is arranged on the lower side of the second cushion fork (22).

5. The safety fork for geotechnical engineering investigation of claim 1, characterized in that, one side of each compressing block (4) is provided with a first slide block (41), the other side of each compressing block (4) is provided with a second slide block (42), each first slide block (41) is slidably arranged in the radial sliding groove (33) corresponding to the first slide block, and each second slide block (42) is slidably arranged in the inclined sliding groove (23) corresponding to the second slide block.

6. The safety fork for geotechnical engineering investigation of claim 5, characterized in that, a buffer spring (34) is arranged in each radial sliding groove (33), one end of each buffer spring (34) is fixedly connected with a corresponding first sliding block (41), and the other end of each buffer spring (34) is fixedly connected with the inner wall of the annular protection sleeve (1).

7. The safety fork pad for geotechnical engineering investigation of claim 1, wherein a pressure plate (43) is arranged on one side of each compression block (4) facing to the axis of the protective ring jacket (1), and each pressure plate (43) is hinged with the corresponding compression block (4); every compact heap (4) on backing fork (2) all through connecting rod (44) series connection each other, every all be provided with connecting hole (45) on compact heap (4), every the both ends of connecting rod (44) are all worn to establish on rather than two adjacent connecting holes (45).

8. The safety pallet fork for geotechnical engineering investigation of claim 1, further comprising:

the connecting head (5) is provided with a threaded hole (51) matched with one end of the drill rod (9) at one end;

the connecting lantern ring (6) is sleeved on the connector (5);

the connecting device comprises 2 connecting arms (7) which are arranged on two sides of a connecting lantern ring (6), one end of each connecting arm (7) is hinged with the side wall of the connecting lantern ring (6), and the other end of each connecting arm (7) is detachably connected with one end, corresponding to the connecting arm, of a cushion fork (2) extending out of a corresponding through groove (14);

when the one end of drilling rod (9) passes annular lag (1) and is close to gradually when connector (5), along with 2 the rotation of pallet fork (2), the one end threaded connection of connector (5) and drilling rod (9), 4 compact heap (4) compress tightly drilling rod (9) simultaneously at least.

9. The safety fork for geotechnical engineering investigation of claim 8, characterized in that, a spring assembly (8) is arranged in the threaded hole (51), the spring assembly (8) comprises a spring (81) and a pressing elastic member (82), one end of the pressing elastic member (82) is fixedly connected with the inner wall of the threaded hole (51), and the other end of the pressing elastic member is fixedly connected with the spring (81).