A fire hydrant valve stem outer surface processing device

Abstract

The present invention relates to the technical field of valve stem turning processing, and in particular to a fire hydrant valve stem outer surface processing device, comprising a main body plate, wherein the upper end of the main body plate is provided with a support and collection mechanism for supporting the threaded turning portion of the valve stem surface, the support and collection mechanism comprising a guide groove opened on the upper end of the main body plate, the main body plate being fixedly connected to a third motor in the guide groove, the transmission shaft end of the third motor being fixedly connected to a second threaded shaft, the side surface of the second threaded shaft being connected to a third fixed body by threaded cooperation, the upper end of the main body plate being connected to a rotating clamping mechanism for clamping the valve stem; the length of the connecting plate between the two first guide blocks is an integer multiple of the turning pitch, and the conical protective plates at the telescopic ends of the fourth electric telescopic rod and the sixth electric telescopic rod are moved into the thread on the metal rod surface, thereby supporting this place during the process of thread turning on the metal rod surface.

Description

Technical Field

[0001] The invention relates to the technical field of valve stem turning, and in particular to a fire hydrant valve stem outer surface processing device. Background Art

[0002] The fire hydrant valve stem is a crucial component within a fire hydrant. Its primary function is to control the flow of water. The fire hydrant valve stem is typically cylindrical, with a threaded structure near one end. Near the other end, a groove for a sealing ring is defined. Existing equipment typically machines the fire hydrant valve stem by rotating a fixture to secure both ends of a metal rod. A tool then creates threads on the rod's side that mate with the hydrant's threaded grooves. Rotating the fire hydrant valve stem opens and closes the valve.

[0003] When the existing thread turning device turns the side of the valve stem, the two ends of the valve stem are clamped and fixed. When the tool turns a certain part of the metal rod, the metal rod may be deformed under the pressure of the tool, reducing the thread accuracy of the valve stem after turning. When the existing turning device turns the thread of the metal rod, it is necessary to spray coolant to the turning position, and a device for collecting coolant is provided under the metal rod. The coolant is in contact with the air for a long time during the recovery process, and some coolants have a strong odor, resulting in a strong odor of the coolant in the turning workshop. After the existing turning device completes the thread processing on the metal rod surface, the processed metal rod needs to be sent to the cleaning workshop for work, so as to remove impurities in the thread on the valve stem surface, which is very inefficient. Summary of the Invention

[0004] The purpose of the present invention is to solve the shortcomings of the background technology and to propose a fire hydrant valve stem outer surface processing device.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is: a fire hydrant valve stem outer surface processing device, comprising a main body plate, the upper end of the main body plate is provided with a support and collecting mechanism for supporting the threaded turning part of the valve stem surface, the support and collecting mechanism includes a guide groove opened on the upper end of the main body plate, the main body plate is fixedly connected to a third motor in the guide groove, the transmission shaft end of the third motor is fixedly connected to a second threaded shaft, the side surface of the second threaded shaft is connected to a third fixed body by threaded cooperation, the side surface of the third fixed body is slidingly cooperated with the guide groove, the upper end of the third fixed body is connected to a third electric telescopic rod, the telescopic end of the third electric telescopic rod is fixedly connected to a fourth fixed body, the upper end of the main body plate is connected to a rotating clamping mechanism for clamping the valve stem, and the upper end of the main body plate is connected to a thread turning mechanism for turning the valve stem surface.

[0006] Preferably, a second through hole is provided at the upper end of the fourth fixing body, a first empty slot communicating with the second through hole is provided inside the fourth fixing body, a accommodating shell is slidably connected in the first empty slot, and the upper end of the accommodating shell is an open structure.

[0007] Preferably, the fourth fixed body is symmetrically provided with second empty grooves on the side surfaces of the second through hole, and two fifth electric telescopic rods are fixedly connected in the two second empty grooves respectively, the telescopic end of one of the fifth electric telescopic rods is fixedly connected to the second guide block, and the telescopic end of the other fifth electric telescopic rod is fixedly connected to the two first guide blocks.

[0008] Preferably, the side surfaces of the second guide block and the first guide block are respectively slidably matched with the second empty groove, the two first guide blocks are connected by a connecting rod, the end faces of the first guide block and the second guide block are respectively fixedly connected with the fourth electric telescopic rod and the sixth electric telescopic rod, and the telescopic ends of the fourth electric telescopic rod and the sixth electric telescopic rod are respectively fixedly connected with a conical anti-slip plate.

[0009] Preferably, a filter plate is fixedly connected inside the containing shell, a connector is fixedly connected to the end face of the second guide block, a scraper for cleaning the filter plate is fixedly connected to the lower end of the connector, and a third through hole is provided through the side of the fourth fixed body and the containing shell.

[0010] Preferably, the fourth fixed body is provided with a plurality of placement grooves at equal angles on the side surface of the second through hole, and a seventh electric telescopic rod is fixedly connected to a plurality of the placement grooves respectively, and the telescopic ends of a plurality of the seventh electric telescopic rods are rotatably connected to the fixed shells respectively, the outer ends of a plurality of the fixed shells are open structures, and the inner side surfaces of a plurality of the fixed shells are rotatably connected to the rollers respectively.

[0011] Preferably, the thread turning mechanism includes two limiting grooves symmetrically opened on the upper end of the main body plate, the main body plate is fixedly connected to the second motor in the two limiting grooves, the transmission shaft ends of the two second motors are fixedly connected to the first threaded shaft, the side surfaces of the two first threaded shafts are respectively cooperated and connected with the second fixed bodies, the side surfaces of the two second fixed bodies are respectively slidably matched with the limiting grooves, the upper ends of the two second fixed bodies are respectively fixedly connected to the second electric telescopic rods, the telescopic ends of the two second electric telescopic rods are fixedly connected to the connecting plate, and the lower end of the connecting plate is connected to the turning head.

[0012] Preferably, the rotating clamping mechanism includes a first fixed body fixedly connected to the upper end of the main plate, a first through hole is penetrated through the end surface of the first fixed body, a rotating ring is rotatably connected in the first through hole, and the inner side surface of the rotating ring is respectively fixedly connected to a plurality of first electric telescopic rods distributed at equal angles, and the telescopic ends of the plurality of first electric telescopic rods are respectively fixedly connected to anti-slip sheets.

[0013] Preferably, an annular groove is provided on the inner side of the first fixed body, a limit ring that rotates with the annular groove is fixedly connected to the side surface of the rotating ring, the end face of the first fixed body is fixedly connected to the first motor, the transmission shaft end of the first motor is fixedly connected to a gear, and the end face of the rotating ring is fixedly connected to a gear ring that meshes with the gear.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] Two first guide blocks and one second guide block are provided on the side of the fourth fixed body. The length of the connecting plate between the two first guide blocks is an integral multiple of the turning pitch. The conical protective plates at the telescopic ends of the fourth and sixth electric telescopic rods move into the threads on the surface of the metal rod, thereby supporting the metal rod surface during thread turning, preventing deformation at the turning position, and improving the accuracy of the thread turning;

[0016] When the fourth fixed body moves along the metal rod, the conical anti-skid plates at the telescopic ends of the fourth and sixth electric telescopic rods can clean impurities in the thread grooves on the side surfaces of the metal rods, thereby cleaning the side surfaces of the metal rods during the turning process;

[0017] After cooling the metal rod, the coolant immediately drops into the containing shell along with the impurities, where the impurities are collected at the upper end of the filter plate. The coolant directly enters the air pump recovery mechanism through the third through hole, reducing the contact time between the coolant and the air and the probability of coolant volatilization. When there are too many impurities on the upper end of the filter plate, the fifth electric telescopic rod drives the scraper to push the impurities on the upper end of the filter plate to one end, thereby ensuring the filtration efficiency of the filter plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 The present invention is a sectional view of the whole Figure 1 ;

[0020] Figure 3 The present invention is a sectional view of the whole Figure 2 ;

[0021] Figure 4 Schematic diagram of part of the structure of the present invention Figure 1 ;

[0022] Figure 5 Schematic diagram of part of the structure of the present invention Figure 2 ;

[0023] Figure 6 Schematic diagram of part of the structure of the present invention Figure 3 ;

[0024] Figure 7 For the present invention Figure 2 A magnified view of point A;

[0025] Figure 8 For the present invention Figure 4 Enlarged view of point B.

[0026] 1. Main body; 2. Rotating clamping mechanism; 3. Thread turning mechanism; 4. Support and collection mechanism; 21. First fixed body; 22. First through hole; 23. Annular groove; 24. Limiting ring; 25. Rotating ring; 26. First electric telescopic rod; 27. Gear ring; 28. Gear; 29. ​​First motor; 31. Limiting groove; 32. Second electric telescopic rod; 33. Connecting plate; 34. First threaded shaft; 35. Second motor; 36. Second fixed body; 37. Turning head; 41. Guide groove; 42. Second threaded shaft; 43. Third fixed body ; 44. Third motor; 45. Third electric telescopic rod; 46. Fourth fixed body; 47. Second through hole; 48. First empty slot; 49. Accommodating shell; 410. Filter plate; 411. Scraper; 412. Third through hole; 413. Connecting body; 414. Second empty slot; 415. First guide block; 416. Fourth electric telescopic rod; 417. Fifth electric telescopic rod; 418. Second guide block; 419. Sixth electric telescopic rod; 420. Placement slot; 421. Seventh electric telescopic rod; 422. Fixed shell; 423. Roller. DETAILED DESCRIPTION

[0027] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are merely examples, and those skilled in the art may conceive of other obvious variations.

[0028] See also Figures 1-8 A fire hydrant valve stem outer surface processing device includes a main body plate 1, and the upper end of the main body plate 1 is provided with a support and collection mechanism 4 for supporting the threaded turning part of the valve stem surface.

[0029] In this embodiment, the supporting and collecting mechanism 4 includes a guide groove 41 opened at the upper end of the main plate 1, and the main plate 1 is fixedly connected to a third motor 44 in the guide groove 41, and the transmission shaft end of the third motor 44 is fixedly connected to the second threaded shaft 42, and the side of the second threaded shaft 42 is connected to the third fixed body 43 through threaded cooperation, and the side of the third fixed body 43 is slidingly cooperated with the guide groove 41, and the upper end of the third fixed body 43 is connected to the third electric telescopic rod 45, and the telescopic end of the third electric telescopic rod 45 is fixedly connected to the fourth fixed body 46.

[0030] A second through hole 47 is defined at the upper end of the fourth fixing body 46 , a first slot 48 communicating with the second through hole 47 is defined inside the fourth fixing body 46 , a housing shell 49 is slidably connected to the first slot 48 , and the upper end of the housing shell 49 is an open structure.

[0031] The fourth fixing body 46 has second slots 414 symmetrically formed on the side of the second through hole 47 , and two fifth electric telescopic rods 417 are fixedly connected in the two second slots 414 , respectively. The telescopic end of one of the fifth electric telescopic rods 417 is fixedly connected to the second guide block 418 , and the telescopic end of the other fifth electric telescopic rod 417 is fixedly connected to the two first guide blocks 415 .

[0032] The side surfaces of the second guide block 418 and the first guide block 415 are respectively slidably matched with the second empty groove 414, and the two first guide blocks 415 are connected by a connecting rod. The end surfaces of the first guide block 415 and the second guide block 418 are respectively fixedly connected with the fourth electric telescopic rod 416 and the sixth electric telescopic rod 419, and the telescopic ends of the fourth electric telescopic rod 416 and the sixth electric telescopic rod 419 are respectively fixedly connected with a conical anti-slip plate.

[0033] A filter plate 410 is fixedly connected to the accommodating shell 49, a connector 413 is fixedly connected to the end face of the second guide block 418, a scraper 411 for cleaning the filter plate 410 is fixedly connected to the lower end of the connector 413, and a third through hole 412 is formed through the side of the fourth fixed body 46 and the accommodating shell 49.

[0034] The fourth fixed body 46 is provided with a plurality of placement grooves 420 at equal angles on the side surface of the second through hole 47, and a seventh electric telescopic rod 421 is fixedly connected to a plurality of the placement grooves 420, and the telescopic ends of a plurality of the seventh electric telescopic rods 421 are rotatably connected to a fixed shell 422, and the outer ends of a plurality of the fixed shells 422 are open structures, and the inner side surfaces of a plurality of the fixed shells 422 are rotatably connected to a roller 423.

[0035] Specifically, the third motor 44 drives the second threaded shaft 42 to rotate, and the second threaded shaft 42 cooperates to drive the third fixed body 43 to move along the guide groove 41, so that the second through hole 47 on the upper end of the fourth fixed body 46 always supports the position of the turning thread.

[0036] In this embodiment, the upper end of the main body plate 1 is connected to a rotating clamping mechanism 2 for clamping the valve stem.

[0037] The rotating clamping mechanism 2 includes a first fixed body 21 fixedly connected to the upper end of the main plate 1, and a first through hole 22 is formed through the end surface of the first fixed body 21. A rotating ring 25 is rotatably connected in the first through hole 22. The inner side surface of the rotating ring 25 is fixedly connected to a plurality of first electric telescopic rods 26 distributed at equal angles, and the telescopic ends of the plurality of first electric telescopic rods 26 are fixedly connected to anti-slip sheets.

[0038] An annular groove 23 is provided on the inner side of the first fixed body 21, and a limit ring 24 that rotates with the annular groove 23 is fixedly connected to the side of the rotating ring 25. A first motor 29 is fixedly connected to the end face of the first fixed body 21, and a gear 28 is fixedly connected to the transmission shaft end of the first motor 29. The end face of the rotating ring 25 is fixedly connected to a gear ring 27 that meshes with the gear 28.

[0039] Specifically, one end of the metal rod is placed on the inner side of the rotating ring 25, and then a plurality of first electric telescopic rods 26 are extended at the same time, and the plurality of first electric telescopic rods 26 clamp the side of the metal rod through the anti-slip sheet.

[0040] In this embodiment, the upper end of the main body plate 1 is connected to a thread turning mechanism 3 for turning the surface of the valve stem.

[0041] The thread turning mechanism 3 includes two limiting grooves 31 symmetrically opened at the upper end of the main body plate 1. The main body plate 1 is fixedly connected to a second motor 35 in the two limiting grooves 31. The transmission shaft ends of the two second motors 35 are fixedly connected to a first threaded shaft 34. The side surfaces of the two first threaded shafts 34 are respectively matched with a second fixed body 36. The side surfaces of the two second fixed bodies 36 are respectively slidably matched with the limiting grooves 31. The upper ends of the two second fixed bodies 36 are respectively fixedly connected to a second electric telescopic rod 32. The telescopic ends of the two second electric telescopic rods 32 are fixedly connected to a connecting plate 33. The lower end of the connecting plate 33 is connected to a turning head 37.

[0042] Specifically, the second electric telescopic rod 32 is retracted and the first motor 29 is started. The first motor 29 drives the metal rod to rotate through the cooperation of the gear 28 and the gear ring 27, thereby driving the turning head 37 to turn threads on the side of the metal rod.

[0043] When in use, one end of the metal rod is placed on the inner side of the rotating ring 25, and then several first electric telescopic rods 26 are extended at the same time. Several first electric telescopic rods 26 clamp the side of the metal rod through the anti-slip sheet, and at the same time, the third electric telescopic rod 45 is extended so that the side of the metal rod is located in the second through hole 47. The seventh electric telescopic rod 421 is extended, and several seventh electric telescopic rods 421 drive the roller 423 to contact the side of the metal rod. Then, the second electric telescopic rod 32 is retracted and the first motor 29 is started. The first motor 29 drives the metal rod to rotate through the cooperation of the gear 28 and the gear ring 27, thereby driving the turning head 37 to turn the thread on the side of the metal rod. During the turning process, two first guide rods are provided on the side of the fourth fixed body 46. Toward block 415 and a second guide block 418, the length of the connecting plate between the two first guide blocks 415 is an integer multiple of the turning pitch, and the conical protective plates at the telescopic ends of the fourth electric telescopic rod 416 and the sixth electric telescopic rod 419 move into the thread on the surface of the metal rod, thereby supporting this place during the process of turning the thread on the surface of the metal rod, preventing deformation at the turning position, and improving the accuracy of the turning thread. When the second motor 35 drives the turning head 37 to move, the third motor 44 is started synchronously, and the third motor 44 drives the second threaded shaft 42 to rotate. The second threaded shaft 42 cooperates to drive the third fixed body 43 to move along the guide groove 41, so that the second through hole 47 at the upper end of the fourth fixed body 46 always supports the position of the turning thread.

[0044] During the movement of the fourth fixed body 46 along the metal rod, the conical anti-slip plates at the telescopic ends of the fourth electric telescopic rod 416 and the sixth electric telescopic rod 419 can clean impurities in the thread grooves on the side surfaces of the metal rod, thereby cleaning the side surfaces of the metal rod during the turning process and improving the efficiency of impurity removal.

[0045] During the turning process, a coolant spraying mechanism is provided at the lower end of the connecting plate 33 near the turning head 37, so that coolant is sprayed during the turning process. The sprayed coolant immediately drops into the containing shell 49 with impurities after cooling the metal rod, and the impurities are collected at the upper end of the filter plate 410. The coolant directly enters the air pump recovery mechanism through the third through hole 412, reducing the contact time between the coolant and the air and reducing the probability of coolant volatilization. When there are too many impurities on the upper end of the filter plate 410, the fifth electric telescopic rod 417 drives the scraper 411 to push the impurities on the upper end of the filter plate 410 to one end, thereby ensuring the filtration efficiency of the filter plate 410.

[0046] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions merely illustrate the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A fire hydrant valve stem outer surface processing device, comprising a main body plate (1), characterized in that: The upper end of the main body plate (1) is provided with a support and collection mechanism (4) for supporting the threaded turning portion of the valve stem surface, the support and collection mechanism (4) includes a guide groove (41) provided at the upper end of the main body plate (1), the main body plate (1) is fixedly connected to a third motor (44) in the guide groove (41), the transmission shaft end of the third motor (44) is fixedly connected to a second threaded shaft (42), the side surface of the second threaded shaft (42) is connected to a third fixed body (43) through threaded matching, the side surface of the third fixed body (43) is slidably matched with the guide groove (41), the upper end of the third fixed body (43) is connected to a third electric telescopic rod (45), the telescopic end of the third electric telescopic rod (45) is fixedly connected to a fourth The fixed body (46) is provided with a rotating clamping mechanism (2) for clamping the valve stem at the upper end of the main plate (1), and a thread turning mechanism (3) for turning the surface of the valve stem at the upper end of the main plate (1). A second through hole (47) is provided at the upper end of the fourth fixed body (46), and a first slot (48) communicating with the second through hole (47) is provided inside the fourth fixed body (46). A housing shell (49) is slidably connected in the first slot (48), and the upper end of the housing shell (49) is an open structure. The fourth fixed body (46) is symmetrically provided with second slots (414) on the side of the second through hole (47), and a fifth electric telescopic rod (417) is fixedly connected in the two second slots (414). ), the telescopic end of one of the fifth electric telescopic rods (417) is fixedly connected to the second guide block (418), the telescopic end of the other fifth electric telescopic rod (417) is fixedly connected to two first guide blocks (415), the second guide block (418) and the side of the first guide block (415) are respectively slidably matched with the second slot (414), the two first guide blocks (415) are connected by a connecting rod, the end faces of the first guide block (415) and the second guide block (418) are respectively fixedly connected to the fourth electric telescopic rod (416) and the sixth electric telescopic rod (419), the telescopic ends of the fourth electric telescopic rod (416) and the sixth electric telescopic rod (419) are respectively fixedly connected to the cone The anti-slip plate is shaped, a filter plate (410) is fixedly connected to the accommodating shell (49), the end face of the second guide block (418) is fixedly connected to a connector (413), the lower end of the connector (413) is fixedly connected to a scraper (411) for cleaning the filter plate (410), a third through hole (412) is provided through the side of the fourth fixed body (46) and the accommodating shell (49), the fourth fixed body (46) is provided with a plurality of placement grooves (420) at equal angles on the side of the second through hole (47), a plurality of the placement grooves (420) are respectively fixedly connected to a seventh electric telescopic rod (421), and the telescopic ends of the plurality of the seventh electric telescopic rods (421) are respectively rotatably connected to the fixed shell (422),The outer ends of several of the fixed shells (422) are open structures, and the inner side surfaces of several of the fixed shells (422) are rotatably connected to rollers (423).

2. A fire hydrant valve stem outer surface processing device according to claim 1, characterized in that: The thread turning mechanism (3) comprises two limiting grooves (31) symmetrically arranged at the upper end of the main body plate (1); the main body plate (1) is fixedly connected to a second motor (35) in the two limiting grooves (31); the transmission shaft ends of the two second motors (35) are fixedly connected to a first threaded shaft (34); the side surfaces of the two first threaded shafts (34) are respectively connected to a second fixed body (36); the side surfaces of the two second fixed bodies (36) are respectively slidably matched with the limiting grooves (31); the upper ends of the two second fixed bodies (36) are respectively fixedly connected to a second electric telescopic rod (32); the telescopic ends of the two second electric telescopic rods (32) are fixedly connected to a connecting plate (33); and the lower end of the connecting plate (33) is connected to a turning head (37).

3. The fire hydrant valve stem outer surface processing device according to claim 1, characterized in that: The rotating clamping mechanism (2) comprises a first fixed body (21) fixedly connected to the upper end of the main body plate (1); a first through hole (22) is formed through the end surface of the first fixed body (21); a rotating ring (25) is rotatably connected in the first through hole (22); the inner side surface of the rotating ring (25) is respectively fixedly connected to a plurality of first electric telescopic rods (26) distributed at equal angles; and the telescopic ends of the plurality of first electric telescopic rods (26) are respectively fixedly connected to anti-slip sheets.

4. A fire hydrant valve stem outer surface processing device according to claim 3, characterized in that: An annular groove (23) is provided on the inner side of the first fixed body (21); a limiting ring (24) that is rotatably engaged with the annular groove (23) is fixedly connected to the side surface of the rotating ring (25); a first motor (29) is fixedly connected to the end surface of the first fixed body (21); a gear (28) is fixedly connected to the transmission shaft end of the first motor (29); and a gear ring (27) that is meshed with the gear (28) is fixedly connected to the end surface of the rotating ring (25).

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