CN210105744U - Anti-falling device for screw drill - Google Patents
Anti-falling device for screw drill Download PDFInfo
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- CN210105744U CN210105744U CN201920938924.4U CN201920938924U CN210105744U CN 210105744 U CN210105744 U CN 210105744U CN 201920938924 U CN201920938924 U CN 201920938924U CN 210105744 U CN210105744 U CN 210105744U
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- falling
- connecting rod
- drop
- nut
- ball
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Abstract
The utility model discloses an anticreep device for screw rod drilling tool, including preventing falling the connecting rod, preventing falling the nut, locking female and compress tightly the cover, compress tightly and sheathe in and set firmly a plurality of orientation along the circumference equipartition and prevent falling the anticreep pole that the connecting rod was pegged graft, the anticreep pole is provided with the ball near its one end of preventing falling the connecting rod, and the other end of anticreep pole is provided with keeps off the cap, prevents falling the connecting rod and is corresponding the position of ball is provided with rather than the ring channel of looks adaptation, compresses tightly and still is provided with in the cover and is used for keeping off the compression spring of. The utility model discloses a ball and the cooperation that prevents falling annular groove on the connecting rod on the anticreep pole for the ball plays spacing effect to preventing falling the connecting rod, thereby prevents to prevent that the loose knot from appearing in the connecting rod, the condition that drops, has guaranteed the holistic stability of screw rod drilling tool, avoids the drilling tool to drop in the well drilling, when needs are dismantled and is prevented falling the connecting rod and overhaul, the compression spring who compresses tightly in the cover can prop the anticreep pole in compressing tightly the cover, makes things convenient for the staff to take out, and is very convenient.
Description
Technical Field
The utility model relates to a screw rod drilling tool technical field especially relates to an anticreep device for screw rod drilling tool.
Background
The screw drilling tool is a positive displacement downhole power drilling tool which takes drilling fluid as power and converts hydraulic pressure energy into mechanical energy, and mainly comprises a bypass valve, a stator, a rotor, a universal shaft assembly, a transmission shaft, a drill bit, a motor and the like.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to avoid prior art's weak point, provide an anticreep device for screw rod drilling tool to effectively solve the weak point that exists among the prior art.
In order to achieve the above purpose, the utility model adopts the following technical scheme: an anti-falling device for a screw drilling tool comprises an anti-falling connecting rod, an anti-falling nut, a locking nut and a pressing sleeve, wherein the locking nut is sleeved on the left side of the anti-falling nut, the pressing sleeve is sleeved on the right side of the anti-falling nut, the left end of the anti-falling connecting rod is inserted into and fixedly arranged in the anti-falling nut along the right end of the anti-falling nut, a plurality of anti-falling rods inserted towards the anti-falling connecting rod are fixedly arranged on the pressing sleeve along the circumferential direction, jacks matched with the anti-falling rods are respectively arranged on the anti-falling nut and the pressing sleeve, balls are arranged at one ends of the anti-falling rods close to the anti-falling connecting rod, retaining caps are arranged at the other ends of the anti-falling rods, annular grooves matched with the anti-falling rods are arranged at positions corresponding to the balls, the balls are abutted against the annular grooves, grooves matched with the retaining caps are arranged on the side wall of the pressing, and a compression spring for jacking the blocking cap in the groove is also arranged in the pressing sleeve.
Further, the jack aperture on the pressing sleeve is larger than the jack aperture on the anti-falling nut, the compression spring is arranged in the jack of the pressing sleeve, the compression spring is sleeved on the anti-falling rod, the lower end of the compression spring is abutted against the side wall of the anti-falling nut, and the upper end of the compression spring is abutted against the stop cap.
Furthermore, a plurality of retention bolts are arranged on the retaining cap along the circumferential direction, and the retaining cap is fixed in the groove by the retention bolts.
Furthermore, the anti-falling rod is provided with an accommodating cavity at one end close to the anti-falling connecting rod, the ball is rotatably arranged in the accommodating cavity, the part of the ball arranged in the accommodating cavity exceeds half of the volume of the ball, and the part of the ball exposed out of the accommodating cavity is abutted against the annular groove.
Furthermore, a mounting groove is formed in one side, close to the locking nut, of the compression sleeve, a spring is arranged in the mounting groove, one end of the spring abuts against the inner wall of the mounting groove, and the other end of the spring abuts against one side of the locking nut.
Furthermore, the anti-falling nut is close to one end of the anti-falling connecting rod is provided with a blocking edge, and the right side of the pressing sleeve is abutted against the blocking edge.
The above technical scheme of the utility model following beneficial effect has: the utility model discloses a ball and the cooperation that prevents falling annular groove on the connecting rod on the anticreep pole for the ball plays spacing effect to preventing falling the connecting rod, thereby prevents to prevent that the loose knot from appearing in the connecting rod, the condition that drops, has guaranteed the holistic stability of screw rod drilling tool, avoids the drilling tool to drop in the well drilling, when needs are dismantled and is prevented falling the connecting rod and overhaul, the compression spring who compresses tightly in the cover can prop the anticreep pole in compressing tightly the cover, makes things convenient for the staff to take out, and is very convenient.
Drawings
Fig. 1 is a schematic sectional structure diagram of an embodiment of the present invention;
fig. 2 is an enlarged view of a portion a in fig. 1.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1-2, the anti-drop device for a screw drill according to this embodiment includes an anti-drop connecting rod 1, an anti-drop nut 2, a locking nut 3 and a pressing sleeve 4, the locking nut 3 is sleeved on the left side of the anti-drop nut 3, the pressing sleeve 4 is sleeved on the right side of the anti-drop nut 2, the left end of the anti-drop connecting rod 1 is inserted into and fixedly installed in the anti-drop nut 2 along the right end of the anti-drop nut 2, a plurality of anti-drop rods 5 inserted into the anti-drop connecting rod 1 are uniformly and circumferentially installed on the pressing sleeve 4, the anti-drop nut 2 and the pressing sleeve 4 are both provided with insertion holes adapted to the anti-drop rods 5, the anti-drop rods 5 are provided with balls 6 at one ends thereof close to the anti-drop connecting rod 1, the other ends of the anti-drop rods 5 are provided with retaining caps 51, the anti-drop connecting rod 1 is provided with annular grooves 11 adapted to the balls 6 at positions corresponding to the balls, the balls 6, the blocking cap 51 is arranged in the groove, and a compression spring 7 for jacking the blocking cap 51 in the groove is further arranged in the pressing sleeve 4.
The jack aperture on compressing tightly cover 4 is greater than the jack aperture on anti-falling nut 2, and compression spring 7 sets up in the jack that compresses tightly cover 4, and compression spring 7 cover is established on anticreep pole 5, and compression spring 7's lower extreme supports and leans on the lateral wall of anti-falling nut 2, and compression spring 7's upper end supports and leans on and keeps off cap 51 department.
The stop cap 51 is provided with a plurality of retaining bolts 52 along the circumferential direction, and the retaining bolts 52 fix the stop cap 51 in the groove.
The anti-falling rod 5 is provided with at its one end that is close to anti-falling connecting rod 1 and holds the chamber, and ball 6 rotationally sets up and holding the intracavity, and ball 6 sets up and holds the part that the intracavity and surpass half of its self volume, and the part that ball 6 exposes outside holding the chamber supports and leans on in annular groove 11.
One side that is close to the locking box 3 in compressing tightly the cover 4 is provided with mounting groove 41, is provided with spring 8 in the mounting groove 41, and the one end of spring 8 supports and leans on the inner wall of mounting groove 41, and the other end of spring 41 supports and leans on the one side of locking box 3.
One end of the anti-falling nut 2 close to the anti-falling connecting rod 1 is provided with a blocking edge 21, and the right side of the pressing sleeve 4 abuts against the blocking edge 21.
The utility model discloses an installation does: firstly, the left end of the anti-drop connecting rod 1 is installed at the right end of the anti-drop nut 2, the anti-drop connecting rod 1 and the anti-drop nut can be connected in a threaded connection or direct insertion mode, after the anti-drop connecting rod 1 is installed, the anti-drop rod 5 is inserted into the insertion hole, the ball 6 at the end of the anti-drop rod 5 abuts against the annular groove 11 of the anti-drop connecting rod 1, the ball 6 plays a limiting role in the anti-drop connecting rod 1 to prevent the anti-drop connecting rod 1 from dropping off, then the blocking cap 51 of the anti-drop rod 5 is pressed into the groove of the pressing sleeve 4, the anti-drop rod 5 is fixed in the insertion hole by using the retaining bolt 52 after the pressing, the retaining bolt 52 penetrates through the blocking cap 51 and is in threaded connection with the pressing sleeve 4, at the moment, the compression spring 7 is in a contraction state, when the disassembly is needed, each retaining bolt 52 is loosened, after the limitation of the retaining bolt 52 does not exist, the drop-preventing rod 51 is removed to separate the balls 6 from the annular groove 11, so that the drop-preventing rod 1 can be disassembled.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (6)
1. The utility model provides an anticreep device for screw rod drilling tool which characterized in that: comprises an anti-falling connecting rod, an anti-falling nut, a locking nut and a pressing sleeve, wherein the locking nut is sleeved on the left side of the anti-falling nut, the pressing sleeve is sleeved on the right side of the anti-falling nut, the left end of the anti-falling connecting rod is inserted into and fixedly arranged in the anti-falling nut along the right end of the anti-falling nut, the pressing sleeve is fixedly provided with a plurality of anti-drop rods inserted into the anti-drop connecting rods along the circumferential direction in an evenly distributed manner, the anti-drop nuts and the pressing sleeve are respectively provided with a jack matched with the anti-drop rods, the anti-drop rods are provided with balls at one ends close to the anti-drop connecting rods, the other ends of the anti-drop rods are provided with stop caps, the anti-drop connecting rods correspond to the position of the balls are provided with ring grooves matched with the balls, the balls are supported in the ring grooves, the side walls of the pressing sleeve are provided with grooves matched with the stop caps, the stop caps are arranged in the grooves, and compression springs used for jacking the stop caps in the grooves are further arranged in the pressing sleeve.
2. The anti-drop device for the screw drill according to claim 1, wherein: the jack aperture on compressing tightly the cover is greater than the jack aperture on the anti-falling nut, compression spring sets up in compressing tightly the jack of cover, compression spring overlaps and establishes on the anticreep pole, compression spring's lower extreme supports and leans on the lateral wall of anti-falling nut, compression spring's upper end supports and leans on keep off cap department.
3. The anti-drop device for the screw drill according to claim 2, wherein: and a plurality of retention bolts are arranged on the retaining cap along the circumferential direction, and the retaining cap is fixed in the groove by the retention bolts.
4. The anti-drop device for the screw drill according to claim 1, wherein: the anti-falling connecting rod is characterized in that one end of the anti-falling rod, which is close to the anti-falling connecting rod, is provided with an accommodating cavity, the ball is rotatably arranged in the accommodating cavity, the part of the ball, which is arranged in the accommodating cavity, exceeds half of the volume of the ball, and the part of the ball, which is exposed out of the accommodating cavity, is abutted against the annular groove.
5. The anti-drop device for the screw drill according to claim 1, wherein: the inner side of the compression sleeve, which is close to the locking nut, is provided with a mounting groove, a spring is arranged in the mounting groove, one end of the spring is abutted against the inner wall of the mounting groove, and the other end of the spring is abutted against one side of the locking nut.
6. The anti-drop device for the screw drill according to claim 1, wherein: the anti-falling nut is close to one end of the anti-falling connecting rod is provided with a blocking edge, and the right side of the pressing sleeve is abutted against the blocking edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920938924.4U CN210105744U (en) | 2019-06-21 | 2019-06-21 | Anti-falling device for screw drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920938924.4U CN210105744U (en) | 2019-06-21 | 2019-06-21 | Anti-falling device for screw drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210105744U true CN210105744U (en) | 2020-02-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920938924.4U Active CN210105744U (en) | 2019-06-21 | 2019-06-21 | Anti-falling device for screw drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210105744U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111497493A (en) * | 2020-04-20 | 2020-08-07 | 张小玲 | Case is deposited to international trade document |
-
2019
- 2019-06-21 CN CN201920938924.4U patent/CN210105744U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111497493A (en) * | 2020-04-20 | 2020-08-07 | 张小玲 | Case is deposited to international trade document |
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| TR01 | Transfer of patent right |
Effective date of registration: 20230911 Address after: 062650 Qingxian Economic Development Zone, Cangzhou City, Hebei Province Patentee after: HEBEI SILUOTE PETROLEUM SPECIAL TUBE MANUFACTURING Co.,Ltd. Address before: 062650 Qingxian Economic Development Zone, Cangzhou City, Hebei Province Patentee before: HEBEI LISEN PETROLEUM MACHINERY CO.,LTD. |