Simple multipurpose F wrench with adjustable opening

Abstract

The utility model relates to a simple multipurpose F wrench with an adjustable opening, which specifically comprises a handle, a first clamping frame is fixed on the handle, a second clamping frame is arranged on the handle in a sliding manner, specifically, a locking assembly and a linkage frame are arranged in the second clamping frame, and the locking assembly is further connected with the linkage frame. In the using process, the wrench can keep the torque effect in the optimal state, and can be suitable for operation scenes of different sizes to improve the stability of the wrench; and meanwhile, under the action of the locking assembly, the damaged operation part can be locked, so that the use performance of the wrench is improved.

Description

Technical Field

[0001] The utility model relates to the field of operations using an F wrench, in particular to an assisted F-type wrench. Background Art

[0002] Valves are one of the commonly used equipment in pipelines. Because the temperature on most pipelines is high, or the valves are rusted due to rain, etc., the valves are often not able to be turned directly by hand. In addition, the motor needs to be cranked before it is turned on, and it is quite laborious to crank the motor due to environmental factors. In the prior art, in order to solve this difficulty, F wrenches are often used to assist in rotation. When using traditional F wrenches, the handles are often insufficient in length due to the effective torque, and it is necessary to replace them with F wrenches with longer handles. However, in special cases, due to limited space, F wrenches with too long handles cannot be used, and because the openings are mostly fixed and cannot be changed, they are not convenient for operation in actual working environments.

[0003] Patent No. CN 212601551 U discloses an F-type wrench for thermal valves, comprising a handle, a first bracket and a second bracket, wherein the first bracket and the second bracket are respectively installed at the front end of the handle in an inclined manner in a parallel staggered shape. When the first bracket and the second bracket are held on the valve handwheel, the handle can be placed in the radial direction of the valve handwheel as much as possible, thus saving manpower.

[0004] Although the device is easy to adjust and, it has the following disadvantages: 1. The second bracket of the F wrench is fixed, resulting in an insufficient opening adjustment range, and the application occasions adapted to this structure are relatively small. 2. When ordinary workers use the lever principle of the F wrench, they use the second bracket of the F wrench as a fulcrum and the first bracket as the torque output part. The above device designs the first bracket as a movable bracket, which cannot ensure the firm and stable conditions of the torque output structure. 3. Based on 2, the design starting point of a thermal valve F-type wrench published by patent number CN212601551 U belongs to a laborious lever. 4. The opening adjustment position is limited due to the short slide slot, which is not applicable to the operation of larger instruments. 5. The position of the first bracket is adjustable, but due to the limited variable range, the adjustable range of the effective torque length is insufficient. 6. When the end of the nut is damaged, it cannot be effectively locked. Utility Model Content

[0005] The utility model aims to provide an F-type wrench for a power-assisted valve switch, a motor turning gear and other fields requiring an F-type wrench, so as to solve the technical problem of rotating and driving power assistance for equipment.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] A handle, specifically a first card holder is connected to the handle;

[0008] The second card frame is slidably disposed on the handle, and specifically the second card frame includes:

[0009] A main housing is slidably disposed on the handle, and a linkage frame is slidably disposed in the main housing, one end of the linkage frame protrudes from the main housing; and

[0010] The locking assembly is arranged at the bottom of the main housing and connected to the linkage frame. The locking assembly cooperates with the linkage frame to clamp the damaged workpiece to avoid failure during the operation of the damaged workpiece.

[0011] Furthermore, as a further improvement of the present utility model, the locking component comprises:

[0012] Rack 1, fixed on the linkage frame;

[0013] A gear, rotatably disposed on the main housing and meshing with the rack;

[0014] Rack 2 is slidably disposed on the main housing and meshes with the gear, and one end of a boss is fixed on the rack 2, and the other end of the boss is fixed to a tooth cone, and a plurality of inverted teeth are provided on the tooth cone;

[0015] A locking rod is slidably disposed on the main housing, one end of which is provided with a limit platform, and the limit platform can cooperate with the inverted tooth; and

[0016] Compression spring one: a compression spring one is arranged between the main housing and the locking rod.

[0017] Furthermore, as a further improvement of the present invention, an adjustment spring is provided between the second rack and the main housing.

[0018] Furthermore, as a further improvement of the present invention, the second bracket is located behind the first bracket and is slidably connected to the handle. Specifically, the second bracket can also be axially moved and adjusted with the handle.

[0019] Furthermore, as a further improvement of the present invention, a sliding sleeve is provided on the top of the second bracket and passes through the handle, and a sleeve thread hole is also provided at the upper end of the sliding sleeve.

[0020] Furthermore, as a further improvement of the present invention, a limit nut is provided in the thread hole of the sleeve through a threaded connection.

[0021] Furthermore, as a further improvement of the present invention, after the limiting nut completes locking of the second clamping frame, the limiting nut contacts the linkage frame.

[0022] Furthermore, as a further improvement of the utility model, the limiting nut includes:

[0023] The nut is specifically provided with a sliding compartment at the central axis of the nut, and a limited position track is provided in the sliding compartment; and

[0024] A screw rod has one end slidably arranged on the limiting track, and the other end is connected to the second bracket through a thread. Specifically, a second compression spring is arranged between the screw rod and the nut.

[0025] Furthermore, as a further improvement of the present invention, the screw rod can only slide but cannot rotate relative to the nut under the limitation of the limiting track.

[0026] Furthermore, as a further improvement of the present invention, a slide groove is provided on the top of the handle, and the slide groove cooperates with the limit nut to enable the second bracket to be slidably adjusted and fixed on the handle.

[0027] The effects provided in the utility model content are only the effects of the embodiments, not all the effects of the utility model. The above technical solution has the following advantages or beneficial effects:

[0028] 1. The first clamp and the second clamp are respectively installed vertically at the lower end of the handle in parallel. When the first clamp and the second clamp are clamped on the valve handwheel, the handle and the clamp can be in the same plane, and manpower can be applied vertically to the same plane of the F wrench to achieve the best torque effect.

[0029] 2. The second bracket can be controlled by the top sleeve and nut, so as to adjust the position of the second bracket to achieve the function of changing the F wrench opening, which can adapt to valve handwheels and motor shafts of different sizes.

[0030] 3. The locking assembly in the second bracket cooperates with the limit nut, so that the second bracket can lock the tightening part of the screw with damaged ends, so as to improve the performance of the wrench.

[0031] 4. In consideration of labor saving, the first bracket of the utility model is fixed, so that the first bracket can be used as a torque output to ensure firmness and stability during use.

[0032] 5. In consideration of cost saving, the second bracket of the utility model is position-adjustable, so that the second bracket can be used as a fulcrum for operation. When the second bracket moves toward the first bracket, the handle output torque is increased, which can save more effort; when the second bracket moves in the opposite direction of the first bracket, the handle rotation radius is reduced, which is convenient for use in places with small space.

[0033] 6. In consideration of cost saving, the second bracket of the utility model is position-adjustable, so that the second bracket can be used as a fulcrum for operation. When the second bracket moves toward the first bracket, the handle length becomes longer. When a greater torque is required, the utility model can use one F wrench without replacing an F wrench with a longer handle. Therefore, the utility model can replace a set of F wrenches with different handle lengths. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0035] Figure 1 The utility model is a schematic diagram of the overall structure of an open-ended adjustable simple multi-purpose F spanner.

[0036] Figure 2 The utility model discloses a side view of a side plate of a simple multi-purpose F spanner with adjustable opening.

[0037] Figure 3 The utility model discloses a rear plate schematic diagram of an open-ended adjustable simple multi-purpose F spanner.

[0038] Figure 4 The utility model is a top plate schematic diagram of an open adjustable simple multi-purpose F wrench.

[0039] Figure 5 The utility model discloses a cross-sectional schematic diagram of a second clamping frame of an open-ended adjustable simple multi-purpose F wrench.

[0040] Figure 6 The utility model discloses a locking assembly schematic diagram of an open-ended adjustable simple multi-purpose F wrench.

[0041] Figure 7 The utility model discloses a schematic diagram of an adjusting nut of an open-ended adjustable simple multi-purpose F spanner.

[0042] In the figure: 1. handle; 2. first bracket; 3. second bracket; 31. main housing; 32. locking assembly; 321. rack 1; 322. gear; 323. rack 2; 324. adjusting spring; 325. boss; 326. tooth cone; 327. locking rod; 328. compression spring 1; 33. linkage frame; 4. sliding sleeve; 5. sleeve thread hole; 6. limiting nut; 61. nut; 62. sliding bin; 63. compression spring 2; 64. screw; 7. slide groove. DETAILED DESCRIPTION

[0043] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0044] like Figure 1-4 As shown, an open adjustable simple multi-purpose F wrench includes a handle 1, a first bracket 2 and a second bracket 3, wherein the first bracket 2 and the second bracket 3 are respectively vertically mounted at the lower end of the handle 1, the first bracket 2 is located at the front end of the handle 1, and is an integral structure with the handle 1, the second bracket 3 is located behind the first bracket 2, the second bracket 3 is connected to the handle 1 in an axially adjustable position, the top end of the second bracket 3 adopts a sliding sleeve 4 that penetrates the handle 1, the sliding sleeve 4 moves through a limiting nut 6, the upper end of the sliding sleeve 4 has a hole, namely a sleeve thread hole 5, a limiting nut 6 is arranged in the sleeve thread hole 5, and the limiting nut 6 moves in a slide groove 7.

[0045] In this embodiment, Figure 4 As shown, by using the limit nut 6 disposed in the slide groove 7, the position of the second bracket 3 can be kept unchanged by tightening the limit nut 6 downward after adjusting the position of the second bracket 3. At the same time, it is ensured that the F spanner opening is firmly fixed and does not change when the hand wheel is rotated.

[0046] The first bracket 2 and the second bracket 3 are respectively vertically mounted on the lower end of the handle 1 in parallel.

[0047] In this embodiment, Figure 1 As shown, when the first bracket 2 and the second bracket 3 are clamped on the valve handwheel, the handle 1, the first bracket 2 and the second bracket 3 can be in the same plane, and manpower can be applied vertically to the same plane of the F wrench to achieve the best torque effect.

[0048] Wherein, a sleeve thread hole 5 is vertically formed on the top of the sliding sleeve 4.

[0049] In this embodiment, Figure 1 As shown, the sleeve thread hole 5 is used in conjunction with the limit nut 6 to fix the position of the sliding sleeve 4.

[0050] The limiting nut 6 can move in the sliding groove 7 .

[0051] In this embodiment, Figure 1 As shown, when the limiting nut 6 moves in the slide groove 7, it can be ensured that the limiting nut 6 will not slide out of the slide groove, thereby preventing the limiting nut 6 from sliding left and right along the vertical direction of the handle 1 due to loose fixation.

[0052] The sliding sleeve 4 passes through the handle 1 and is connected to the second bracket 3 .

[0053] In this embodiment, Figure 1As shown, the second bracket 3 is connected to the sliding sleeve 4, so that the position of the second bracket 3 can be moved synchronously when the sliding sleeve 4 is moved, so as to adjust the position of the second bracket 3 to achieve the function of changing the F wrench opening, which can adapt to valve handwheels and motor shafts of different sizes.

[0054] It should be noted that the utility model is a simple and multi-purpose F wrench with adjustable opening, which is not limited to the valve handwheel rotation operation, but can also be used for motor turning, as well as various suitable operation contents. In this embodiment, the first bracket 2 is fixed for labor saving considerations, so that the first bracket 2 is used as the torque output when it is convenient to use to ensure firmness and stability. In the utility model, the second bracket 3 is position-adjustable for cost saving considerations, so that the second bracket 3 is used as a fulcrum for operation when it is convenient to use. When the second bracket 3 moves toward the first bracket 2, the handle 1 output torque is increased, which can save more labor; when the second bracket 3 moves in the opposite direction of the first bracket 2, the handle 1 rotation radius is reduced, which is convenient for use in a small space. In the utility model, for cost saving considerations, when the second bracket 3 moves toward the first bracket 2, the effective torque length of the handle 1 becomes longer. For situations where a larger torque is required, a F wrench of the utility model can be used, and there is no need to replace an F wrench with a longer handle. Therefore, the utility model can replace a set of F wrenches with different handle length specifications.

[0055] In this embodiment, Figure 5-6 As shown, the locking assembly 32 comprises:

[0056] Rack 1 321, fixed on the linkage frame 33;

[0057] A gear 322 is rotatably disposed on the main housing 31 and meshes with the rack 1 321;

[0058] Rack 2 323 is slidably disposed on the main housing 31 and meshes with the gear 322, and one end of a boss 325 is fixed to the rack 2 323, and the other end of the boss 325 is fixed to a tooth cone 326, a plurality of inverted teeth are provided on the tooth cone 326, and an adjustment spring 324 is provided between the rack 2 323 and the main housing 31.

[0059] A locking rod 327 is slidably disposed on the main housing 31, and a limiting platform is disposed at one end thereof, and the limiting platform can cooperate with the inverted teeth; and

[0060] Compression spring 1 328 : A compression spring 1 328 is provided between the main housing 31 and the locking rod 327 .

[0061] in accordance with Figure 5-6The utility model shown in the figure also includes: after the limiting nut 6 completes locking of the second clamping frame 3, the limiting nut 6 contacts the linkage frame 33;

[0062] It should be noted that if the required rotating object is damaged and it is inconvenient to perform the clamping operation, first, according to the size of the work object, the second clamping frame 3 is locked on the handle 1 through the limit nut 6, so as to realize the pre-tightening effect of the first clamping frame 2 and the second clamping frame 3 on the work object. After the pre-tightening is completed, the limit nut 6 is knocked to make the rack 1 321 slide, and the rack 1 321 moves the rack 2 323 through the gear 322 during the sliding process. During the movement of the rack 2 323, the tooth cone 326 will move outward, even if the tooth cone 326 is inserted into the interior of the work object, thereby realizing the secondary locking of the work object.

[0063] During the movement of rack 2 323, the adjustment spring 324 will be compressed synchronously. At the same time, during the movement of tooth cone 326, the tooth cone 326 is limited by the action of the inverted teeth and the locking rod 327, thereby preventing the tooth cone 326 from rebounding due to external force, causing the secondary locking of the work object to fail. The locking rod 327 will always be in contact with the inverted teeth under the action of compression spring 1 328, thereby achieving continuous locking of the tooth cone 326.

[0064] After the operation on the work object is completed, the locking effect with the tooth cone 326 is released by pulling the lock rod 327. After the lock is released, the various components are restored to the initial state under the action of the adjustment spring 324, that is, the tooth cone 326 is freed from the work object.

[0065] In this embodiment, Figure 7 As shown, the limiting nut 6 includes:

[0066] The nut 61, specifically, a slide bin 62 is provided at the central axis of the nut 61, and a limited position track is provided in the slide bin 62; and

[0067] One end of the screw rod 64 is slidably disposed on the limiting track, and the other end is connected to the second bracket 3 through a thread. Specifically, a second compression spring 63 is also disposed between the screw rod 64 and the nut 61 .

[0068] in accordance with Figure 6 The utility model also includes: the screw rod 64 can only slide but cannot rotate relative to the nut 61 under the limitation of the limiting track.

[0069] It should be noted that after the work object is pre-tightened, striking the nut 61 will cause the nut 61 to slide down, and the nut 61 will cause the linkage frame 33 to slide down during the sliding process, so that the tooth cone 326 completes the secondary locking of the work object. At the same time, during the striking process of the nut 61, the compression spring 2 63 inside it can quickly restore the nut 61 to its initial state, thereby playing a buffering role for the nut 61.

[0070] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A simple multi-purpose F wrench with adjustable opening, characterized in that: include: A handle (1), specifically a first card holder (2) connected to the handle (1); A second card frame (3) is slidably arranged on the handle (1), and the second card frame (3) comprises: A main housing (31) is slidably disposed on the handle (1), and a linkage frame (33) is slidably disposed in the main housing (31), one end of the linkage frame (33) protruding from the main housing (31); as well as The locking assembly (32) is arranged at the bottom of the main housing (31) and connected to the linkage frame (33). The locking assembly (32) cooperates with the linkage frame (33) to clamp the damaged workpiece to avoid failure during the operation of the damaged workpiece.

2. The adjustable opening simple multi-purpose F wrench according to claim 1, characterized in that: The locking assembly (32) comprises: Rack 1 (321), fixed on the linkage frame (33); A gear (322) is rotatably disposed on the main housing (31) and meshes with the rack 1 (321); A second rack (323) is slidably disposed on the main housing (31) and meshes with the gear (322), and one end of a boss (325) is fixed to the second rack (323), and the other end of the boss (325) is fixed to a tooth cone (326), and a plurality of inverted teeth are provided on the tooth cone (326); A locking rod (327) is slidably disposed on the main housing (31), one end of which is provided with a limit platform, and the limit platform can cooperate with the inverted tooth; and Compression spring one (328), a compression spring one (328) is arranged between the main housing (31) and the locking rod (327).

3. The adjustable multi-purpose F wrench according to claim 2, characterized in that: An adjustment spring (324) is provided between the second rack (323) and the main housing (31).

4. The open-ended adjustable simple multi-purpose F wrench according to claim 1, characterized in that: The second bracket (3) is located behind the first bracket (2) and is slidably connected to the handle (1). Specifically, the second bracket (3) can also be axially movable and adjusted with the handle (1).

5. The adjustable multi-purpose F wrench with an open end according to claim 4, characterized in that: A sliding sleeve (4) is provided at the top of the second bracket (3) and passes through the handle (1), and a sleeve thread hole (5) is also provided at the upper end of the sliding sleeve (4).

6. The open-ended adjustable simple multi-purpose F wrench according to claim 5, characterized in that: A limit nut (6) is arranged in the sleeve thread hole (5) through threaded connection.

7. The open-ended adjustable simple multi-purpose F wrench according to claim 6, characterized in that: After the limiting nut (6) completes locking of the second clamping frame (3), the limiting nut (6) contacts the linkage frame (33).

8. The open-ended adjustable simple multi-purpose F wrench according to claim 6, characterized in that: The limiting nut (6) comprises: The nut (61) is specifically provided with a sliding bin (62) at the center axis of the nut (61), and a limited position track is provided in the sliding bin (62); and A screw rod (64) has one end slidably disposed on the limiting track and the other end connected to the second bracket (3) via a thread. Specifically, a second compression spring (63) is also disposed between the screw rod (64) and the nut (61).

9. The open-ended adjustable simple multi-purpose F wrench according to claim 8, characterized in that: The screw rod (64) is limited by the limiting track and can only slide but cannot rotate relative to the nut (61).

10. The adjustable multi-purpose F wrench with an open end according to claim 6, characterized in that: A slide groove (7) is provided on the top of the handle (1), and the slide groove (7) cooperates with the limiting nut (6) to enable the second bracket (3) to be slidably adjusted and fixed on the handle (1).

Images