A ratchet wrench device for operating a valve handwheel

Abstract

The present invention discloses a ratchet wrench device for operating a valve handwheel, including a load-bearing plate for supporting the upper components. A lengthwise telescopic assembly, a wrench transmission assembly, a detachable torque head assembly, and a handwheel transmission rod clamping assembly are provided on the load-bearing plate, and a claw auxiliary assembly is provided behind the load-bearing plate. The present invention relates to the technical field of wrenches and has the following beneficial effects: The ratchet wrench device in this case can be used when facing a valve with grooves, and at the same time, when there is no groove for leverage, the detachable torque head assembly can be used to disassemble the front torque head, the handwheel transmission rod clamping assembly is used to clamp the handwheel transmission rod, and the claw auxiliary assembly behind the device is used to clamp the valve handwheel spoke. Subsequently, the transmission rod and the handwheel are rotated together through the wrench transmission assembly to achieve the effect of rotational assistance. Using this device can be applicable to valves in various situations, enhancing the versatility of the ratchet wrench device.

Description

Technical Field

[0001] The present invention relates to the technical field of wrenches, and particularly to a ratchet wrench device for operating a valve handwheel. Background Art

[0002] A wrench is a common mechanical equipment operation tool that utilizes the lever principle to achieve the disassembly, assembly, opening, and closing of parts, and is commonly used for the operation of nuts and threaded parts. As an auxiliary tool for opening and closing valves, the valve handwheel wrench is frequently used in the production processes of energy, chemical industry, etc.

[0003] The existing ratchet wrench device with the patent number CN101954627A includes: a driving rod, which includes a handle and a U-shaped seat; the U-shaped seat is recessed inwardly with an opening to form an inner wall surface, one end of the U-shaped seat different from the opening is fixedly connected to the handle, and a pair of through holes are provided on the inner wall surface of the U-shaped seat.

[0004] A ratchet head, which includes a hollow cylindrical body, a rotating member installed in the body, and a pressing member sleeved on the rotating member; an extension section that abuts against the inner wall surface of the U-shaped seat extends upward from the body, a pair of engaging holes corresponding to the pair of through holes are provided on an outer peripheral surface of the extension section, and an opening corresponding to the pair of engaging holes is provided on an outer peripheral surface of the pressing member.

[0005] However, the above-mentioned ratchet wrench device currently in use is generally used for valve handwheels with corresponding-shaped grooves. However, if there is no installed valve or no groove is provided, and there is only a transmission shaft, the wrench cannot be used to gain leverage. Summary of the Invention

[0006] To achieve the above objectives, the present invention is realized through the following technical solutions: A ratchet wrench device for operating a valve handwheel includes a load-bearing plate for supporting upper components. A length and telescopic component, a wrench transmission component, a detachable torque head component, and a handwheel transmission rod clamping component are provided on the load-bearing plate. A claw auxiliary component is provided behind the load-bearing plate;

[0007] Among them, the length and telescopic component includes: a load-bearing frame, a handle frame, an adjustment slot, a positioning hole, an adjustment hole, a positioning pin, a threaded column, and a nut;

[0008] The load-bearing frame is installed below the load-bearing plate, the adjustment slot is opened in the handle frame, the positioning hole is opened on the load-bearing frame, the lower part of the load-bearing frame is arranged in the adjustment slot, the positioning pin is installed in the positioning hole and the corresponding adjustment hole, the threaded column is connected to the end of the positioning pin, and the nut is installed on the threaded column;

[0009] The wrench transmission component includes: a torsion spring, a ratchet disc, a rotating shaft, a pawl disc, and a pawl;

[0010] The ratchet disc is installed on the load-bearing plate, the rotating shaft is installed below the ratchet disc, the pawl disc is sleeved on the rotating shaft, the pawl is installed on the pawl disc through the rotating shaft, and both ends of the torsion spring are connected to the pawl disc and the load-bearing plate;

[0011] The detachable torque head assembly includes: a torque head disc, a square torque head, a threaded hole, a connection groove, a connection post, and a magnetic sheet;

[0012] The threaded hole is opened on the ratchet disc and the torque head disc. The torque head disc is installed on the ratchet disc through the threaded hole and bolts. A connection post is provided below the square torque head. The connection groove is opened on the torque head disc. The magnetic sheet is attached around the lower part of the square torque head, around the connection groove, and at the bottom of the connection groove. The connection post is installed in the connection groove.

[0013] Preferably, a rubber sleeve is provided on the handle holder.

[0014] Preferably, a clamping block is provided at the lower end of the handle holder.

[0015] Preferably, the wrench transmission assembly includes: a torsion spring, a ratchet disc, a rotating shaft, a pawl disc, and a pawl;

[0016] The ratchet disc is installed on the load-bearing plate, the rotating shaft is installed below the ratchet disc, the pawl disc is sleeved on the rotating shaft, the pawl is installed on the pawl disc through the rotating shaft, and both ends of the torsion spring are connected to the pawl disc and the load-bearing plate.

[0017] Preferably, the shape of the card slot above the pawl meshes with the teeth on the ratchet disc.

[0018] Preferably, a dust-proof housing covers the upper part of the ratchet disc.

[0019] Preferably, the claw auxiliary assembly includes: a rotating slot, a slide rail, a turntable, a positioning threaded hole, a connecting threaded post, and a claw;

[0020] The rotating slot is opened behind the load-bearing plate. The turntable is connected in the rotating slot through the slide rail. The positioning threaded hole is opened at various places on the turntable. The claw is installed on the positioning threaded hole through the connecting threaded post.

[0021] Preferably, a card slot is provided on the claw.

[0022] Preferably, the handwheel transmission rod clamping assembly includes: a driving slot, a transmission slot, a driver, a lead screw, a mounting bracket, a snap-in groove, a spring, a lock, a lock hole, a clamping plate, a pull rod, and a pull ring;

[0023] The driving groove and the transmission groove are formed in the ratchet disc. The driver is installed in the driving groove. The lead screw is connected to the output end of the driver. The mounting bracket is arranged in the transmission groove and sleeved on the lead screw. The buckle grooves are formed on both sides of the mounting bracket. The latch is installed in the buckle grooves. The spring is installed behind the latch. The pull rod is connected to the latch. The pull ring is installed on the pull rod. The lock holes are formed on both sides of the clamping plate.

[0024] Beneficial effects

[0025] The ratchet wrench device of the present invention has the following beneficial effects:

[0026] The ratchet wrench device in this case can be used when facing a valve with a groove. At the same time, when there is no groove for leverage, the detachable torque head assembly can be used to disassemble the front torque head. The handwheel transmission rod clamping assembly is used to clamp the handwheel transmission rod. The claw auxiliary assembly at the rear of the device is used to clamp the valve handwheel spoke. Subsequently, the transmission rod and the handwheel are rotated together through the wrench transmission assembly to achieve the effect of rotational assistance. Using this device can be applicable to valves in various situations, enhancing the versatility of the ratchet wrench device. Description of the drawings

[0027] Figure 1 It is a three-dimensional structural schematic diagram of the ratchet wrench device for operating a valve handwheel according to the present invention.

[0028] Figure 2 It is a front view structural schematic diagram of the ratchet wrench device for operating a valve handwheel according to the present invention.

[0029] Figure 3 It is a front view cross-sectional structural schematic diagram of the ratchet wrench device for operating a valve handwheel according to the present invention.

[0030] Figure 4 It is a rear view structural schematic diagram of the ratchet wrench device for operating a valve handwheel according to the present invention.

[0031] Figure 5 It is a side view structural schematic diagram of the ratchet wrench device for operating a valve handwheel according to the present invention.

[0032] Figure 6 It is a schematic diagram of the handwheel transmission rod clamping assembly of the ratchet wrench device for operating a valve handwheel according to the present invention.

[0033] Figure 7 It is a partially enlarged schematic diagram of the handwheel transmission rod clamping assembly of the ratchet wrench device for operating a valve handwheel according to the present invention.

[0034] Figure 8Partial enlarged schematic view of the length telescopic assembly of a ratchet wrench device for operating a valve handwheel according to the present invention.

[0035] Figure 9 Partial enlarged schematic view of the detachable torque head assembly of a ratchet wrench device for operating a valve handwheel according to the present invention.

[0036] In the figure: 1, load-bearing plate; 2, load-bearing frame; 3, handle frame; 4, adjustment groove; 5, positioning hole; 6, adjustment hole; 7, positioning pin; 8, threaded column; 9, nut; 10, torsion spring; 11, ratchet disc; 12, rotating shaft; 13, pawl disc; 14, pawl; 15, torque head disc; 16, square torque head; 17, threaded hole; 18, connecting groove; 19, connecting column; 20, magnetic sheet; 21, rotating groove; 22, slide rail; 23, turntable; 24, positioning threaded hole; 25, connecting threaded column; 26, claw; 27, driving groove; 28, transmission groove; 29, driver; 30, lead screw; 31, mounting bracket 32, buckle groove; 33, spring; 34, lock; 35, lock hole; 36, clamping plate; 37, pull rod; 38, pull ring; Detailed implementation mode

[0037] Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0038] Please refer to Figures 1-9 , the present invention provides a technical solution.

[0039] A ratchet wrench device for operating a valve handwheel, including a load-bearing plate 1, the load-bearing plate 1 is used to support the upper components, and a length telescopic assembly, a wrench transmission assembly, a detachable torque head assembly and a handwheel transmission rod clamping assembly are arranged on the load-bearing plate 1, and a claw 26 auxiliary assembly is arranged behind the load-bearing plate 1;

[0040] Among them, the length telescopic assembly includes: a load-bearing frame 2, a handle frame 3, an adjustment groove 4, a positioning hole 5, an adjustment hole 6, a positioning pin 7, a threaded column 8 and a nut 9;

[0041] The load-bearing frame 2 is installed below the load-bearing plate 1, the adjustment groove 4 is opened in the handle frame 3, the positioning hole 5 is opened on the load-bearing frame 2, the lower part of the load-bearing frame 2 is arranged in the adjustment groove 4, the positioning pin 7 is installed in the positioning hole 5 and the corresponding adjustment hole 6, the threaded column 8 is connected to the end of the positioning pin 7, and the nut 9 is installed on the threaded column 8.

[0042] It should be noted that before using the wrench, the length of the load-bearing frame 2 can be adjusted according to the required torque. The load-bearing frame 2 adjusts its length by telescoping within the adjustment slot 4 inside the handle frame 3. Subsequently, the positioning pin 7 passes through the positioning hole 5 and the adjustment hole 6 to fix the length. Then, the nut 9 is screwed onto the threaded post 8, and then the positioning pin 7 can be fixed;

[0043] The wrench transmission assembly includes: a torsion spring 10, a ratchet disc 11, a rotating shaft 12, a pawl disc 13, and a pawl 14;

[0044] The ratchet disc 11 is installed on the load-bearing plate 1, the rotating shaft 12 is installed below the ratchet disc 11, the pawl disc 13 is sleeved on the rotating shaft 12, the pawl 14 is installed on the pawl disc 13 through the rotating shaft 12, and both ends of the torsion spring 10 are connected to the pawl disc 13 and the load-bearing plate 1;

[0045] It should be noted that when the wrench is rotated, the ratchet disc 11 will rotate together with the load-bearing plate 1. At the same time, the pawl disc 13 swings on the rotating shaft 12 through the torsion of the torsion spring 10. Subsequently, the pawl 14 will stick to the side teeth of the ratchet disc 11. When the ratchet disc 11 rotates, the pawl 14 will move on the teeth. After rotating a certain angle, when the load-bearing frame 2 is pulled back, the pawl 14 will lock the ratchet disc 11, thus achieving the effect of turning the valve handwheel transmission rod. At the same time, it eliminates the shortcoming of the old-fashioned wrench that requires re-clamping every time it is operated. At the same time, the pawl 14 that can be manually turned by the rotating shaft 12 can change the force application direction of the wrench;

[0046] The detachable torque head assembly includes: a torque head disc 15, a square torque head 16, a threaded hole 17, a connection groove 18, a connection post 19, and a magnetic sheet 20;

[0047] The threaded hole 17 is opened on the ratchet disc 11 and the torque head disc 15. The torque head disc 15 is installed on the ratchet disc 11 through the threaded hole 17 and bolts. The connection post 19 is provided below the square torque head 16. The connection groove 18 is opened on the torque head disc 15. The magnetic sheet 20 is pasted around the bottom of the square torque head 16, around the connection groove 18, and at the bottom of the connection groove 18. The connection post 19 is installed in the connection groove 18;

[0048] It should be noted that when disassembling and assembling the torque head disc 15, the bolts can be fixed through the threaded hole 17 to achieve the disassembly and assembly of the torque head disc 15. At the same time, the square torque head 16 can be inserted into the connection groove 18 through the connection post 19 and magnetically adsorbed by the magnetic sheet 20 to prevent the square torque head 16 from falling. The square torque head 16 can also be installed in a corresponding shape according to the shape of the groove, so that the device can adapt to various situations;

[0049] Preferably, furthermore, a rubber sleeve is provided on the handle holder 3.

[0050] It should be noted that the rubber sleeve is used to make the hand-held of the handle holder 3 more comfortable.

[0051] Preferably, furthermore, a clamping block is provided at the lower end of the handle holder 3.

[0052] It should be noted that the clamping block is used to limit the handle holder 3 in the adjustment groove 4.

[0053] Preferably, furthermore, the shape of the card slot above the pawl 14 meshes with the teeth on the ratchet disc 11.

[0054] It should be noted that a suitable card slot shape and position can make the pawl 14 grasp the teeth more stably.

[0055] Preferably, furthermore, a dust-proof housing is covered above the ratchet disc 11.

[0056] It should be noted that the dust-proof housing can protect the ratchet disc 11 and prevent the mechanism from collecting dust.

[0057] Preferably, furthermore, a claw auxiliary component, including: a rotating groove 21, a slide rail 22, a turntable 23, a positioning threaded hole 24, a connecting threaded column 25, and a claw 26;

[0058] The rotating groove 21 is opened behind the bearing plate 1, the turntable 23 is connected in the rotating groove 21 through the slide rail 22, the positioning threaded hole 24 is opened at various places on the turntable 23, and the claw 26 is installed on the positioning threaded hole 24 through the connecting threaded column 25.

[0059] It should be noted that the claw 26 positioned through the positioning threaded hole 24 and the connecting threaded column 25 fits on the valve handwheel spoke to assist in holding the wrench, and at the same time, the slide rail 22 can drive the turntable 23 to rotate cooperatively in the rotating groove 21.

[0060] Preferably, furthermore, a card slot is provided on the claw 26.

[0061] It should be noted that the card slot is used to better fit the valve handwheel spoke.

[0062] Preferably, furthermore, the handwheel transmission rod clamping component, including: a driving groove 27, a transmission groove 28, a driver 29, a lead screw 30, a mounting bracket 31, a snap groove 32, a spring 33, a lock 34, a lock hole 35, a clamping plate 36, a pull rod 37, and a pull ring 38;

[0063] The driving groove 27 and the transmission groove 28 are formed in the ratchet disc 11. The driver 29 is installed in the driving groove 27. The lead screw 30 is connected to the output end of the driver 29. The mounting bracket 31 is arranged in the transmission groove 28 and sleeved on the lead screw 30. The buckle grooves 32 are formed on both sides of the mounting bracket 31. The latch 34 is installed in the buckle grooves 32. The spring 33 is installed behind the latch 34. The pull rod 37 is connected to the latch 34. The pull ring 38 is installed on the pull rod 37. The lock holes 35 are formed on both sides of the clamping plate 36.

[0064] It should be noted that when turning a valve without a corresponding groove, the driver 29 is started to rotate the lead screw 30, so that the mounting bracket 31 moves downward on the lead screw 30, and the clamping plate 36 clamps on the valve handwheel transmission rod. Since the shapes of valve handwheel transmission rods are not necessarily all cylindrical, by pulling the pull ring 38, the pull rod 37 drives the latch 34 to tighten in the buckle groove 32. After the latch 34 is removed from the lock hole 35, the clamping plate 36 can be disassembled and replaced with clamping plates 36 of different shapes according to the shape of the valve handwheel transmission rod.

[0065] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A ratchet wrench device for operating a valve handwheel, comprising a load-bearing plate (1), and the load-bearing plate (1) is used for supporting the upper components, characterized in that: The load-bearing plate (1) is provided with a long and short telescopic component, a wrench transmission component, a detachable torque head component, and a handwheel transmission rod clamping component, and a claw auxiliary component is arranged behind the load-bearing plate (1); Among them, the long and short telescopic component includes: a load-bearing frame (2), a handle frame (3), an adjustment groove (4), a positioning hole (5), an adjustment hole (6), a positioning pin (7), a threaded column (8), and a nut (9); The load-bearing frame (2) is installed below the load-bearing plate (1), the adjustment groove (4) is opened in the handle frame (3), the positioning hole (5) is opened on the load-bearing frame (2), the lower part of the load-bearing frame (2) is arranged in the adjustment groove (4), the positioning pin (7) is installed in the positioning hole (5) and the corresponding adjustment hole (6), the threaded column (8) is connected to the end of the positioning pin (7), and the nut (9) is installed on the threaded column (8); The wrench transmission component includes: a torsion spring (10), a ratchet disc (11), a rotating shaft (12), a pawl disc (13), and a pawl (14); The ratchet disc (11) is installed on the load-bearing plate (1), the rotating shaft (12) is installed below the ratchet disc (11), the pawl disc (13) is sleeved on the rotating shaft (12), the pawl (14) is installed on the pawl disc (13) through the rotating shaft (12), and both ends of the torsion spring (10) are connected to the pawl disc (13) and the load-bearing plate (1); The detachable torque head component includes: a torque head disc (15), a square torque head (16), a threaded hole (17), a connection groove (18), a connection column (19), and a magnetic sheet (20); The threaded hole (17) is opened on the ratchet disc (11) and the torque head disc (15), the torque head disc (15) is installed on the ratchet disc (11) through the threaded hole (17) and a bolt, a connection column (19) is arranged below the square torque head (16), the connection groove (18) is opened on the torque head disc (15), the magnetic sheet (20) is pasted around the lower part of the square torque head (16), around the connection groove (18), and at the bottom of the connection groove (18), and the connection column (19) is installed in the connection groove (18); The handwheel transmission rod clamping component includes: a drive groove (27), a transmission groove (28), a driver (29), a lead screw (30), a mounting bracket (31), a snap groove (32), a spring (33), a lock (34), a lock hole (35), a clamping plate (36), a pull rod (37), and a pull ring (38); The driving groove (27) and the transmission groove (28) are formed in the ratchet disc (11). The driver (29) is installed in the driving groove (27). The lead screw (30) is connected to the output end of the driver (29). The mounting bracket (31) is arranged in the transmission groove (28) and sleeved on the lead screw (30). The buckle grooves (32) are formed on both sides of the mounting bracket (31). The latch (34) is installed in the buckle grooves (32). The spring (33) is installed behind the latch (34). The pull rod (37) is connected to the latch (34). The pull ring (38) is installed on the pull rod (37). The lock holes (35) are formed on both sides of the clamping plate (36).

2. The ratchet wrench device for operating a valve handwheel according to claim 1, characterized in that, A rubber sleeve is provided on the handle holder (3).

3. The ratchet wrench device for operating a valve handwheel according to claim 1, characterized in that, A clamping block is provided at the lower end of the handle holder (3).

4. The ratchet wrench device for operating a valve handwheel according to claim 1, characterized in that, The shape of the card slot above the pawl (14) is engaged with the teeth on the ratchet disc (11).

5. The ratchet wrench device for operating a valve handwheel according to claim 1, characterized in that, A dust-proof housing covers the upper part of the ratchet disc (11).

6. The ratchet wrench device for operating a valve handwheel according to claim 1, characterized in that, The claw auxiliary assembly includes: a rotating groove (21), a slide rail (22), a turntable (23), a positioning threaded hole (24), a connecting threaded post (25), and a claw (26). The rotating groove (21) is formed behind the load-bearing plate (1). The turntable (23) is connected in the rotating groove (21) through the slide rail (22). The positioning threaded holes (24) are formed at various positions on the turntable (23). The claws (26) are installed on the positioning threaded holes (24) through the connecting threaded posts (25).

7. The ratchet wrench device for operating a valve handwheel according to claim 6, characterized in that, A card slot is provided on the claw (26).

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