Filtering type mining liquid injection gun

Abstract

The utility model provides a filter type mining liquid injection gun, relates to mining liquid injection gun field, including: mining liquid injection gun main part, mining liquid injection gun main part includes handle and grab handle, and grab handle is equipped with filter subassembly inside, grab handle includes connecting pipe, and connecting pipe lower end screw joint is equipped with base pipe, and base pipe internal fixed limit ring simultaneously, and the connecting pipe lower end screw joint is equipped with the base pipe. The filtering assembly comprises a rough filtering disc fixed to the inner wall of the base pipe, rough filtering holes are formed in the rough filtering disc, meanwhile, magnetic attraction frames are fixed in the rough filtering holes, a fine filtering disc is rotationally connected to the upper end of the rough filtering disc, fine filtering holes are formed in the fine filtering disc, and a connecting block is connected to the upper end of the fine filtering disc through a connecting rod; the lower end of the center of the connecting block is connected with a rotating shaft, and the rotating shaft is inserted and fixed in the middle of the fine filter disc and rotationally connected in the middle of the coarse filter disc. The filter screen for the mining liquid injection gun solves the problems that a filter screen related to an existing mining liquid injection gun does not have the function of adjusting the inner diameter of a filter hole, and the filtering effect on metal impurities is poor.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid injection guns for mines, in particular to a filtering liquid injection gun for mines. Background Art

[0002] In the process of mineral mining, single hydraulic props are needed to support the mine tunnel. When using single hydraulic props, the top column of the prop needs to be retracted and extended by hand crank or injection gun to support the top of the mine tunnel. Therefore, the injection gun is an indispensable device in mining equipment. After searching, the prior art (application number: CN202223541806.0) records "a single hydraulic prop injection gun for mining, comprising a gun body, a connecting pipe fixedly connected to one side of the bottom of the gun body, a filter screen movably connected to the middle of the connecting pipe, a clamping bolt fixedly connected to one side of the gun body, a fixed connection between one side of the clamping bolt and one end of a return spring, and a sealing block fixedly connected to the other end of the return spring, a fixed connection between one side of the sealing block and one end of a connecting rod, and a block fixedly connected to the other end of the connecting rod, and a push rod fixedly connected to one side of the block. The improved injection gun, by setting the channel at 45°, has less resistance to the liquid during injection and higher injection efficiency, and by sequentially connecting the push rod, the block, the connecting rod and the sealing block as a whole, it is avoided that the sealing block is hit by the push rod and is damaged, resulting in a decrease in the sealing effect of the sealing block."

[0003] However, although the single hydraulic prop injection gun for mining in the prior art has achieved the effect of ensuring sealing, extending service life, and filtering, it still has some shortcomings: the filter involved in the existing mining injection gun can only achieve a simple filtering effect. In daily injection use, when a new hydraulic liquid storage packaging barrel is opened, since it has not been opened, the internal impurities are relatively small, and it can be directly filtered through the filter. When the opened packaging barrel is used, the internal impurities may be more, and fine filtration is required. The inner diameter of the filter mesh of the existing filter cannot be changed. When a new packaging barrel is injected, if a smaller filter hole is used for filtering, it will affect the injection efficiency, and then cause continuous use of the injection gun to cause hand discomfort. When injecting a half barrel of hydraulic liquid that needs fine filtration, it is necessary to reduce the inner diameter of the filter hole, and the existing filter does not have this function. At the same time, there is no adsorption and cleaning effect on metal impurities during filtration. Utility Model Content

[0004] In order to overcome the defects of the prior art, a filtering mining liquid injection gun is now provided to solve the problem that the filter screen involved in the existing mining liquid injection gun does not have the function of adjusting the inner diameter of the filter hole and has a deviation in the filtering effect on metal impurities.

[0005] To achieve the above-mentioned purpose, a filtering type mining injection gun is provided, comprising: a mining injection gun body, the mining injection gun body comprising a handle and a grip, and a filter assembly is arranged inside the grip, the grip comprises a connecting pipe, and a base pipe is screwed at the lower end of the connecting pipe, and a limiting ring is fixed inside the base pipe, the filter assembly comprises a coarse filter disc fixed to the inner wall of the base pipe, and a coarse filter hole is opened inside the coarse filter disc, and a magnetic suction frame is fixed in the coarse filter hole, the coarse filter disc is rotatably connected to a fine filter disc at the upper end, and a fine filter hole is opened inside the fine filter disc, and the upper end of the fine filter disc is connected to a connecting block through a connecting rod, the central lower end of the connecting block is connected to a rotating shaft, and the rotating shaft is plugged and fixed in the middle of the fine filter disc, and the rotating shaft is rotatably connected to the middle of the coarse filter disc, the upper end of the connecting block is connected to a first gear, and a second gear is meshed on the outer side of the first gear, and a driving rod is connected to the outer end of the second gear, and a knob is connected to the outer end of the driving rod.

[0006] Furthermore, the lower end of the connecting pipe is screwed to the inner wall of the base pipe, and cavities are provided inside the connecting pipe and the base pipe, and the lower end of the connecting pipe is in contact with the limiting ring.

[0007] Furthermore, a plug hole is provided at the bottom of the base tube, and the inner diameter of the plug hole is smaller than the inner cavity of the base tube.

[0008] Furthermore, a shaft sleeve is fixed in the middle of the coarse filter disc, and the rotating shaft is rotatably inserted in the shaft sleeve.

[0009] Furthermore, the outer wall of the fine filter plate is in rotational contact with the inner wall of the base tube, and the fine filter holes correspond to the coarse filter holes in upper and lower positions, and the inner diameter of the fine filter holes is smaller than that of the coarse filter holes.

[0010] Furthermore, both the first gear and the second gear are provided with bevel gears, and the first gear is connected to the center point of the upper end of the connecting block through the gear shaft at the lower end.

[0011] Furthermore, the drive rod rotates through the tube wall of the base tube, and the knob is placed outside the base tube. At the same time, a pointer is connected to the outside of the knob, and the pointer points to the angle disk fixed on the outer wall of the base tube, and the drive rod passes through the center of the angle disk.

[0012] The beneficial effects of the utility model are:

[0013] 1. When using an opened hydraulic liquid packaging barrel, in order to prevent the interior from being contaminated by excessive impurities, when connecting to the main body of the mining liquid injection gun in this application, first drive the knob through the driving rod, the second gear, the first gear, the connecting block and the connecting rod to drive the fine filter disc to rotate a certain angle (realized by the pointer and the angle disc), so that the fine filter hole at this time coincides with the center of the coarse filter hole, and then the hydraulic liquid is filtered through the fine filter hole, avoiding excessive impurities from wearing the internal components of the mining single hydraulic support;

[0014] 2. When using an unopened hydraulic liquid packaging barrel, there is no contamination by impurities during the intermediate use. Therefore, in order to improve the injection efficiency, the fine filter disc is moved away by the knob so that the fine filter holes are blocked by the coarse filter disc. At this time, only the coarse filter holes remain unobstructed, thereby improving the injection efficiency. At the same time, the internal magnetic suction frame has an adsorption effect on metal impurities during both coarse and fine filtration processes, and while improving efficiency, it can greatly alleviate the discomfort caused by long-term operation of the injection gun by the hands. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view structural schematic diagram of an embodiment of the utility model.

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the handle portion of an embodiment of the utility model.

[0017] Figure 3 For the utility model embodiment Figure 2 Schematic diagram of the structure at point A in the middle.

[0018] Figure 4 For the utility model embodiment Figure 2 Schematic diagram of the structure at point B in the middle.

[0019] Figure 5 This is a schematic diagram of the top view of the fine filter disc according to an embodiment of the utility model.

[0020] Figure 6 This is a schematic diagram of the top view of the coarse filter disc according to an embodiment of the utility model.

[0021] In the figure: 1. main body of the mining injection gun; 2. handle; 3. grip; 31. connecting pipe; 32. base pipe; 321. limit ring; 322. plug-in hole; 4. filter assembly; 41. first gear; 42. second gear; 421. drive rod; 422. angle plate; 423. pointer; 424. knob; 43. connecting block; 44. connecting rod; 45. fine filter plate; 451. fine filter hole; 46. rotating shaft; 47. coarse filter plate; 471. bushing; 472. coarse filter hole; 473. magnetic bracket. DETAILED DESCRIPTION

[0022] Reference Figures 1 to 6 As shown, the utility model provides a filtering type liquid injection gun for mining, comprising: a main body 1 of the liquid injection gun for mining.

[0023] Specifically, the main body 1 of the mining injection gun includes a handle 2 and a grip 3, and a filter assembly 4 is arranged inside the grip 3, the grip 3 includes a connecting pipe 31, and the lower end of the connecting pipe 31 is screwed with a base pipe 32, and a limiting ring 321 is fixed inside the base pipe 32, the filter assembly 4 includes a coarse filter disc 47 fixed to the inner wall of the base pipe 32, and a coarse filter hole 472 is opened inside the coarse filter disc 47, and a magnetic suction frame 473 is fixed in the coarse filter hole 472, the upper end of the coarse filter disc 47 is rotatably connected to a fine filter disc 45, and a fine filter hole 451 is opened inside the fine filter disc 45, and the upper end of the fine filter disc 45 is connected to a connecting block 43 through a connecting rod 44, and the lower end of the center of the connecting block 43 is connected The rotating shaft 46 is inserted and fixed in the middle of the fine filter plate 45, and the rotating shaft 46 is rotatably connected to the middle of the coarse filter plate 47. The upper end of the connecting block 43 is connected to the first gear 41, and the outer side of the first gear 41 is meshed with the second gear 42. At the same time, the outer end of the second gear 42 is connected to the driving rod 421, and the outer end of the driving rod 421 is connected to the knob 424. The driving rod 421 rotates through the tube wall of the base tube 32, and the knob 424 is placed on the outside of the base tube 32. At the same time, the outer side of the knob 424 is connected to a pointer 423, and the pointer 423 points to the angle disk 422 fixed on the outer wall of the base tube 32, and the driving rod 421 passes through the center of the angle disk 422.

[0024] In this embodiment, the handle 2 and the grip 3 of the main body 1 of the mining liquid injection gun, and the filter assembly 4 provided inside the grip 3 constitute the main body structure of the filtering mining liquid injection gun involved in this application.

[0025] As a preferred embodiment, the magnetic suction frame 473 is made of a magnetic material, so that the metal impurities and metal sludge in the hydraulic fluid can be adsorbed and cleaned, thereby avoiding damage to the inside of the mining hydraulic support.

[0026] It should be noted that the knob 424 is disposed near the bottom end of the base tube 32 so as not to affect the hand when the handle 3 is held.

[0027] As a preferred embodiment, by providing the angle disk 422, precise angle control is achieved during manual operation, so that the centers of the fine filter holes 451 and the coarse filter holes 472 can coincide with each other.

[0028] Specifically, the lower end of the connecting tube 31 is screwed to the inner wall of the base tube 32, and cavities are provided inside the connecting tube 31 and the base tube 32. At the same time, the lower end of the connecting tube 31 contacts the limiting ring 321, and a plug hole 322 is provided at the bottom of the base tube 32, and the inner diameter of the plug hole 322 is smaller than the internal cavity of the base tube 32.

[0029] As a preferred embodiment, by providing a limiting ring 321 , the lower end of the connecting tube 31 is limited when the connecting tube 32 is connected to the base tube 31 , thereby avoiding collision with the filter assembly 4 .

[0030] Specifically, a shaft sleeve 471 is fixed in the middle of the coarse filter disc 47, and the rotating shaft 46 is rotatably inserted into the shaft sleeve 471, the outer wall of the fine filter disc 45 is in rotational contact with the inner wall of the base tube 32, and the fine filter hole 451 corresponds to the coarse filter hole 472 in the upper and lower positions, and the inner diameter of the fine filter hole 451 is smaller than the coarse filter hole 472, the first gear 41 and the second gear 42 are both provided with bevel gears, and the first gear 41 is connected to the upper end center point of the connecting block 43 through the gear shaft at the lower end.

[0031] It should be noted that, in the circumferential direction, the gap area between two adjacent coarse filter holes 472 is larger than the hole area of ​​the fine filter hole 451 .

[0032] During use, when using an opened hydraulic liquid packaging barrel, in order to prevent the interior from being contaminated by excessive impurities, when connected to the main body of the mining liquid injection gun in the present application, first drive the knob through the driving rod, the second gear, the first gear, the connecting block and the connecting rod, so that the driving fine filter disc rotates a certain angle (achieved by the pointer and the angle plate), so that the fine filter hole at this time coincides with the center of the coarse filter hole, and then the hydraulic liquid is filtered through the fine filter hole, avoiding excessive impurities from wearing the internal components of the mining monomer hydraulic support; when using an unopened hydraulic liquid packaging barrel, there is no contamination by impurities during the intermediate use process, so in order to improve the injection efficiency, the fine filter disc is removed by the knob at this time, so that the fine filter hole is blocked by the coarse filter disc, and only the coarse filter hole remains unobstructed at this time, thereby improving the injection efficiency, and at the same time, the internal magnetic suction frame has an adsorption effect on metal impurities during both the coarse and fine filtering processes, and while improving the efficiency, it can greatly alleviate the discomfort caused by the long-term operation of the injection gun by the hands.

[0033] The utility model discloses a filtering type mining liquid injection gun, which can effectively solve the problem that the filter screen involved in the existing mining liquid injection gun does not have the function of adjusting the inner diameter of the filter hole and has the problem of deviation in the filtering effect on metal impurities. It realizes the convenience of adjusting the inner diameter of the filter hole on the basis of the existing filtering type mining liquid injection gun technology, thereby facilitating the liquid injection gun to flexibly achieve both fine filtering effect and improved liquid injection efficiency, and at the same time has the function of adsorbing and cleaning metal impurities.

Claims

1. A filtering type liquid injection gun for mining, comprising: A main body (1) of a liquid injection gun for mining, characterized in that: the main body (1) of the liquid injection gun for mining comprises a handle (2) and a grip (3), and a filter assembly (4) is arranged inside the grip (3), the grip (3) comprises a connecting tube (31), and a base tube (32) is screwed to the lower end of the connecting tube (31), and a limiting ring (321) is fixed inside the base tube (32), the filter assembly (4) comprises a coarse filter disc (47) fixed to the inner wall of the base tube (32), and a coarse filter hole (472) is opened inside the coarse filter disc (47), and a magnetic suction frame (473) is fixed in the coarse filter hole (472), and the upper end of the coarse filter disc (47) is rotatably connected to a fine filter disc (45), and a fine filter hole (451) is provided inside the fine filter disc (45), and the upper end of the fine filter disc (45) is connected to a connecting block (43) via a connecting rod (44), the central lower end of the connecting block (43) is connected to a rotating shaft (46), and the rotating shaft (46) is plugged and fixed in the middle of the fine filter disc (45), and the rotating shaft (46) is rotatably connected to the middle of the coarse filter disc (47), the upper end of the connecting block (43) is connected to a first gear (41), and the outer side of the first gear (41) is meshed with a second gear (42), and the outer end of the second gear (42) is connected to a driving rod (421), and the outer end of the driving rod (421) is connected to a knob (424).

2. A filtering type liquid injection gun for mining according to claim 1, characterized in that: The lower end of the connecting tube (31) is threadedly connected to the inner wall of the base tube (32), and cavities are provided inside the connecting tube (31) and the base tube (32), and the lower end of the connecting tube (31) is in contact with the limiting ring (321).

3. A filtering type liquid injection gun for mining according to claim 1, characterized in that: The bottom of the base tube (32) is provided with an inserting hole (322), and the inner diameter of the inserting hole (322) is smaller than the inner cavity of the base tube (32).

4. A filtering type liquid injection gun for mining according to claim 1, characterized in that: A shaft sleeve (471) is fixed in the middle of the coarse filter disc (47), and the rotating shaft (46) is rotatably inserted into the shaft sleeve (471).

5. The filtering type liquid injection gun for mining according to claim 1, characterized in that: The outer wall of the fine filter plate (45) is in rotational contact with the inner wall of the base tube (32), the fine filter hole (451) and the coarse filter hole (472) correspond in upper and lower positions, and the inner diameter of the fine filter hole (451) is smaller than that of the coarse filter hole (472).

6. A filtering type liquid injection gun for mining according to claim 1, characterized in that: The first gear (41) and the second gear (42) are both provided with bevel gears, and the first gear (41) is connected to the upper center point of the connecting block (43) via a gear shaft at the lower end.

7. A filtering type liquid injection gun for mining according to claim 1, characterized in that: The driving rod (421) rotates to penetrate the wall of the base tube (32), and the knob (424) is placed outside the base tube (32). A pointer (423) is connected to the outside of the knob (424), and the pointer (423) points to an angle disk (422) fixed on the outer wall of the base tube (32), and the driving rod (421) passes through the center of the angle disk (422).

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