Safety fork for water conservancy investigation

Abstract

The utility model relates to a safety fork for water conservancy investigation, which belongs to the technical field of water conservancy investigation tools, and comprises a first shell and a second shell which are distributed up and down, a mounting shell is arranged between the first shell and the second shell, and an arc-shaped block is arranged outside the mounting shell. An adjusting structure for displacing the arc-shaped block is arranged in the mounting shell, and a moving mechanism for displacing the mounting shell is arranged in the second shell. The adjusting structure comprises a double-shaft air cylinder installed in the installation shell and a first connecting block which is fixedly installed at the output end of the double-shaft air cylinder and extends to the outer portion of the installation shell to be fixed to the arc-shaped block. The moving mechanism comprises a rotating shaft rotationally installed in the second shell and a transmission gear fixedly installed outside the rotating shaft. The safety fork for water conservancy investigation is convenient to operate, and the arc-shaped block can be quickly adjusted, so that the safety fork has the advantages of being high in practicability, convenient to adjust and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of water conservancy engineering survey tools, in particular to a safety pad fork for water conservancy survey. Background Art

[0002] The fork is a tool used to hold the drill bit and suspend it at the hole mouth when drilling in geological core drilling construction. When lifting the drill bit, the fork mouth of the fork is inserted into the cutout of the drill pipe lock joint to suspend the drill bit at the hole mouth. When unscrewing the drill pipe, it is used to fix the lower drill pipe to facilitate unscrewing the upper drill pipe. At present, the existing fork is easy to slide out of the drill pipe from one end of the fork opening during use, causing the drill pipe and the machine head to fall into the well, affecting the progress of the project. In addition, most forks cannot adjust the distance between the two fork teeth according to the thickness of the drill pipe, and have poor applicability.

[0003] After searching, Chinese patent CN209724262U discloses a safety fork for water conservancy engineering investigation, including a first connection block, a second connection block and a third connection block, the outer surface of the first connection block is provided with a square hole, the inner surface of the square hole is slidably connected to a slide rod, the upper surface of the slide rod is fixedly connected to a connection plate, the lower surface of the connection plate is slidably connected to the upper surface of the first connection block, the upper surface of the first connection block is fixedly connected to a cylinder, and the inner surface of the cylinder is rotatably connected to a rotating shaft. This safety fork for water conservancy engineering investigation is spliced ​​by four fork teeth. After installation, the drill rod will not slip out, ensuring normal operation, and the distance between the left and right fork teeth can be adjusted according to the thickness of the drill rod.

[0004] The utility model of the safety pad fork for water conservancy engineering survey is adjusted manually. Although this method can adjust the pad fork, manual adjustment is not only cumbersome to operate, but also has low accuracy, resulting in low adjustment efficiency, which seriously affects the adjustment efficiency of the pad fork and cannot meet the use requirements. Therefore, a safety pad fork for water conservancy survey is proposed to solve the above problems. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a safety fork pad for water conservancy survey, which has the advantages of strong practicality and easy adjustment, and solves the problem that manual adjustment is not only cumbersome to operate but also has low precision, resulting in low efficiency of fork pad adjustment.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a safety pad fork for water conservancy survey, comprising a first shell and a second shell distributed up and down, a mounting shell is arranged between the first shell and the second shell, an arc block is arranged outside the mounting shell, and an adjustment structure for displacing the arc block is arranged inside the mounting shell, and a moving mechanism for displacing the mounting shell is arranged inside the second shell;

[0007] The adjustment structure includes a double-shaft cylinder installed inside the installation housing, and a first connecting block fixedly installed at the output end of the double-shaft cylinder and extending to the outside of the installation housing and fixed to the arc block;

[0008] The moving mechanism includes a rotating shaft rotatably mounted inside the second shell, a transmission gear fixedly mounted outside the rotating shaft, a toothed plate arranged inside the second shell and meshing with the transmission gear, a second connecting block fixedly mounted between the toothed plate and the mounting shell, and a driving structure arranged inside the second shell to drive the transmission gear.

[0009] Furthermore, the number of the mounting housing and the number of the dual-axis cylinders are both two, the number of the arc blocks and the number of the first connecting blocks are both four, and the four first connecting blocks are respectively connected to the four output ends of the two dual-axis cylinders.

[0010] Furthermore, a first limiting assembly for guiding the first connecting block is disposed inside the two installation shells, and a sliding opening is opened on opposite sides of the two installation shells, and the four first connecting blocks extend to the outside of the installation shells through the two sliding openings.

[0011] Furthermore, the driving structure includes a reduction motor fixedly mounted on the inner top wall of the second housing, a worm wheel fixedly mounted on the outside of the rotating shaft, and a worm fixedly mounted on the output shaft of the reduction motor and meshing with the worm wheel.

[0012] Furthermore, the number of the tooth plates and the number of the second connecting blocks are both two, and the two tooth plates are symmetrically arranged outside the transmission gear, and the two second connecting blocks are respectively connected and fixed to the upper surfaces of the two mounting shells by bolts.

[0013] Furthermore, a second limiting assembly for guiding the two tooth plates is disposed inside the second shell, and the rotating shaft is connected to the inner top wall and the inner bottom wall of the second shell through bearings.

[0014] Furthermore, a guide structure for guiding the two mounting shells is arranged inside the first shell, and the guide structure includes a guide rod fixedly installed between the left and right inner walls of the first shell and two sliding sleeves slidably connected to the outer surface of the guide rod and respectively fixed to the lower surfaces of the two mounting shells.

[0015] Furthermore, a connecting rod is welded to the lower surface of the first shell, and a handle is fixedly installed on the front side of the connecting rod.

[0016] Compared with the prior art, the utility model provides a safety fork for water conservancy survey, which has the following beneficial effects:

[0017] 1. The safety fork for water conservancy survey can adjust the spacing of four arc blocks by using the adjustment structure and the adjustment mechanism, so as to quickly clamp the drill rod. The structure is easy to operate and can quickly adjust the arc blocks, thus achieving the advantages of strong practicality and easy adjustment, and solves the problem that manual adjustment is not only cumbersome to operate but also has low accuracy, resulting in low efficiency of fork adjustment.

[0018] 2. The safety fork for water conservancy survey ensures stable spacing adjustment of the arc blocks through the installation of the first limit assembly, the second limit assembly and the guide structure, improves the clamping effect of the arc blocks, and achieves the advantage of stable adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a cross-sectional view of the structure of the utility model;

[0020] Figure 2 This is a top sectional view of the second shell structure of the utility model;

[0021] Figure 3 This is a front sectional view of the structure of the second shell of the utility model.

[0022] In the figure: 1. first housing; 2. second housing; 3. connecting rod; 4. mounting housing; 5. dual-axis cylinder; 6. arc block; 7. first connecting block; 8. first limit assembly; 9. transmission gear; 10. tooth plate; 11. second connecting block; 12. reduction motor; 13. rotating shaft; 14. worm; 15. worm wheel; 16. guide rod; 17. sleeve; 18. second limit assembly. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-3 A safety fork for water conservancy survey includes a first shell 1 and a second shell 2 distributed up and down, a mounting shell 4 is arranged between the first shell 1 and the second shell 2, an arc block 6 is arranged outside the mounting shell 4, and an adjusting structure for displacing the arc block 6 is arranged inside the mounting shell 4.

[0025] Among them, the adjustment structure includes a dual-axis cylinder 5 installed inside the mounting shell 4, and a first connecting block 7 fixedly installed at the output end of the dual-axis cylinder 5 and extending to the outside of the mounting shell 4 and fixed with the arc block 6; a connecting rod 3 is welded on the lower surface of the first shell 1, and a handle is fixedly installed on the front of the connecting rod 3.

[0026] It should be noted that the number of the mounting housings 4 and the number of the dual-axis cylinders 5 are both two, the number of the arc blocks 6 and the number of the first connecting blocks 7 are both four, and the four first connecting blocks 7 are respectively connected to the four output ends of the two dual-axis cylinders 5. Heat dissipation holes and wiring holes are provided inside the two mounting housings 4. Inspection panels can be detachably installed on the outside of the two mounting housings 4.

[0027] In addition, the interior of the two installation shells 4 is provided with a first limiting assembly 8 for guiding the first connecting block 7, and the two installation shells 4 are provided with sliding openings on opposite sides, and the four first connecting blocks 7 extend to the outside of the installation shells 4 through the two sliding openings.

[0028] In this embodiment, a moving mechanism for displacing the mounting housing 4 is provided inside the second housing 2; the moving mechanism includes a rotating shaft 13 rotatably mounted inside the second housing 2, a transmission gear 9 fixedly mounted outside the rotating shaft 13, a tooth plate 10 disposed inside the second housing 2 and meshing with the transmission gear 9, a second connecting block 11 fixedly mounted between the tooth plate 10 and the mounting housing 4, and a driving structure disposed inside the second housing 2 and driving the transmission gear 9. The driving structure includes a reduction motor 12 fixedly mounted on the inner top wall of the second housing 2, a worm gear 15 fixedly mounted outside the rotating shaft 13, and a worm 14 fixedly mounted on the output shaft of the reduction motor 12 and meshing with the worm gear 15.

[0029] There are two tooth plates 10 and two second connection blocks 11, and the two tooth plates 10 are symmetrically arranged outside the transmission gear 9. The two second connection blocks 11 are respectively connected and fixed to the upper surfaces of the two mounting housings 4 by bolts. A second stopper assembly 18 for guiding the two tooth plates 10 is arranged inside the second housing 2, and the rotating shaft 13 is connected to the inner top wall and the inner bottom wall of the second housing 2 through a bearing.

[0030] It should be noted that the first limit assembly 8 and the second limit assembly 18 have the same structure, respectively guiding the arc block 6 and the tooth plate 10. The length of the second limit assembly 18 is less than the moving distance of the tooth plate 10, preventing the tooth plate 10 from being disconnected from the transmission gear 9.

[0031] In this embodiment, a guide structure for guiding the two mounting housings 4 is provided inside the first housing 1, and the guide structure includes a guide rod 16 fixedly installed between the left and right inner walls of the first housing 1 and two sliding sleeves 17 slidably connected to the outer surface of the guide rod 16 and respectively fixed to the lower surfaces of the two mounting housings 4. Through the installation of the first limit assembly 8, the second limit assembly 18 and the guide structure, the spacing adjustment of the arc block 6 is ensured to be stable, the clamping effect of the arc block 6 is improved, and the advantage of stable adjustment is achieved.

[0032] The working principle of the above embodiment is:

[0033] When in use, the dual-axis cylinder 5 is used to drive two adjacent arc blocks 6 to move closer or farther away, so as to adjust the distance between the two adjacent arc blocks 6. Then, the reduction motor 12 is started, and the transmission gear 9 is driven to rotate through the rotating shaft 13 through the cooperation of the worm 14 and the worm wheel 15. The transmission gear 9 rotates and engages with the two tooth plates 10 to drive the two mounting shells 4 closer, so that the drill rod can be clamped and fixed.

[0034] The electrical components appearing in the text are all electrically connected to the controller and the power supply. The control method of the utility model is controlled by the controller. The control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power supply is also common knowledge in this field. The utility model is mainly used to protect mechanical devices, so the utility model will no longer explain the control method and circuit connection in detail.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A safety fork for water conservancy survey, comprising a first shell (1) and a second shell (2) arranged vertically, characterized in that: A mounting shell (4) is arranged between the first shell (1) and the second shell (2); an arc block (6) is arranged outside the mounting shell (4); an adjusting structure for displacing the arc block (6) is arranged inside the mounting shell (4); and a moving mechanism for displacing the mounting shell (4) is arranged inside the second shell (2); The adjustment structure comprises a double-axis cylinder (5) installed inside the installation shell (4), and a first connection block (7) fixedly installed at the output end of the double-axis cylinder (5) and extending to the outside of the installation shell (4) and fixed to the arc block (6); The moving mechanism comprises a rotating shaft (13) rotatably mounted inside the second housing (2), a transmission gear (9) fixedly mounted outside the rotating shaft (13), a toothed plate (10) arranged inside the second housing (2) and meshing with the transmission gear (9), a second connecting block (11) fixedly mounted between the toothed plate (10) and the mounting housing (4), and a driving structure arranged inside the second housing (2) and driving the transmission gear (9).

2. A safety fork for water conservancy survey according to claim 1, characterized in that: The number of the mounting housing (4) and the number of the dual-axis cylinder (5) are both two, the number of the arc blocks (6) and the number of the first connecting blocks (7) are both four, and the four first connecting blocks (7) are respectively connected to the four output ends of the two dual-axis cylinders (5).

3. A safety fork for water conservancy survey according to claim 2, characterized in that: A first limiting assembly (8) for guiding the first connecting block (7) is disposed inside the two installation shells (4), and a sliding opening is provided on opposite sides of the two installation shells (4), and the four first connecting blocks (7) extend to the outside of the installation shells (4) through the two sliding openings.

4. A safety fork for water conservancy survey according to claim 1, characterized in that: The driving structure comprises a reduction motor (12) fixedly mounted on the inner top wall of the second housing (2), a worm wheel (15) fixedly mounted on the outside of the rotating shaft (13), and a worm (14) fixedly mounted on the output shaft of the reduction motor (12) and meshing with the worm wheel (15).

5. A safety fork for water conservancy survey according to claim 2, characterized in that: The number of the tooth plates (10) and the number of the second connecting blocks (11) are both two, and the two tooth plates (10) are symmetrically arranged outside the transmission gear (9), and the two second connecting blocks (11) are respectively connected and fixed to the upper surfaces of the two mounting shells (4) by bolts.

6. A safety fork for water conservancy survey according to claim 5, characterized in that: A second limiting assembly (18) for guiding the two tooth plates (10) is arranged inside the second shell (2), and the rotating shaft (13) is connected to the inner top wall and the inner bottom wall of the second shell (2) via bearings.

7. A safety fork for water conservancy survey according to claim 2, characterized in that: A guide structure for guiding the two mounting shells (4) is arranged inside the first shell (1), and the guide structure comprises a guide rod (16) fixedly mounted between the left and right inner walls of the first shell (1) and two sliding sleeves (17) slidably connected to the outer surface of the guide rod (16) and respectively fixed to the lower surfaces of the two mounting shells (4).

8. The safety fork for water conservancy survey according to claim 1, characterized in that: A connecting rod (3) is welded to the lower surface of the first shell (1), and a handle is fixedly mounted on the front side of the connecting rod (3).

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