Open ratchet wrench

Abstract

The utility model discloses an open ratchet wrench which comprises a built-in ratchet wheel and an extension rod rotationally arranged on the built-in ratchet wheel, and further comprises a handheld mechanism arranged on the extension rod and used for driving the extension rod and the built-in ratchet wheel to rotate synchronously; and the limiting mechanism is arranged on the built-in ratchet wheel and is used for limiting the extension rod to rotate on the built-in ratchet wheel. According to the utility model, through the arrangement of the limiting mechanism and the handheld mechanism, the extension rod is rotated on the built-in ratchet wheel, so that the angle between the built-in ratchet wheel and the extension rod is adjusted to adapt to fastening a porcelain bottle under the condition that a traction converter cabinet is not lifted out, and the limiting mechanism limits the extension rod after the angle is rotated; the angle formed between the extension rod and the built-in ratchet wheel is kept stable, the handheld mechanism drives the extension rod to rotate so as to drive the built-in ratchet wheel to rotate synchronously, and therefore the effect of fastening the porcelain bottle is achieved, and the problem that under the condition that a traction converter cabinet is not lifted out, due to the fact that the fastening position is limited, a porcelain bottle locking nut cannot be fastened is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of wrenches, in particular to an open-end ratchet wrench. Background Art

[0002] The HXD1C electric locomotive has a porcelain bottle oil leakage problem. Without lifting out the traction converter cabinet, the space below the cabinet is small and the oil leakage porcelain bottle fastening bolts cannot be tightened in the conventional way. The traction converter cabinet must be removed and lifted out to tighten the porcelain bottle to solve the oil leakage problem. However, this operation results in a large workload, a wide range of operations, and a long operation time. In addition, due to the narrow distance between the main transformer porcelain bottles, the commonly used tightening wrenches are bulky and difficult to operate in a narrow space. The wrench may even slip and break the porcelain bottle during operation, causing unnecessary losses. Utility Model Content

[0003] The purpose of the utility model is to solve the above-mentioned shortcomings and provide an open-end ratchet wrench.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] An open-end ratchet wrench, comprising a built-in ratchet and an extension rod rotatably arranged on the built-in ratchet, and further comprising:

[0006] A hand-held mechanism, disposed on the extension rod and used to drive the extension rod and the built-in ratchet to rotate synchronously;

[0007] A limiting mechanism is arranged on the built-in ratchet and is used to limit the rotation of the extension rod on the built-in ratchet.

[0008] Preferably, a movable joint is provided at one end of the extension rod close to the built-in ratchet, and the movable joint is rotatably connected to the built-in ratchet.

[0009] Preferably, the built-in ratchet is provided with a notch for allowing the movable joint to rotate.

[0010] Preferably, the limiting mechanism comprises:

[0011] A screw rod, disposed between the extension rod and the movable joint;

[0012] A movable nut is arranged on the screw rod and is threadedly connected with the screw rod, and is used for abutting against the built-in ratchet wheel.

[0013] Preferably, the handheld mechanism comprises:

[0014] A square rod, arranged at one end of the extension rod away from the built-in ratchet;

[0015] A docking sleeve, which is sleeved on the square head rod and is used to rotate the square head rod;

[0016] A sleeve hole, provided on the butt sleeve and used for the square head rod to pass through;

[0017] A connecting rod, arranged on the docking sleeve;

[0018] A handle is arranged at an end of the connecting rod away from the docking sleeve.

[0019] Preferably, a storage mechanism is provided on the extension rod for storing the handheld mechanism in the finished operation state;

[0020] The storage mechanism comprises:

[0021] A storage seat, which is U-shaped and disposed on one side of the extension rod;

[0022] A convex ring, sleeved on the connecting rod;

[0023] A clamping groove, provided on the receiving seat and used for clamping the convex ring;

[0024] The plug-in assembly is arranged on the receiving seat and is used to limit the movement of the connecting rod.

[0025] Preferably, the plug-in assembly comprises:

[0026] A plug-in rod, slidably disposed on the storage seat;

[0027] A through hole, provided at the top of the storage seat and allowing the plug-in rod to pass through;

[0028] A plug-in slot, provided at the bottom of the storage seat and for the plug-in rod to be plugged in;

[0029] A limiting plate, arranged at one end of the plug-in rod;

[0030] The spring is sleeved on the plug-in rod and one end of the spring is connected to the limiting plate, and the other end of the spring is connected to the upper end of the storage seat.

[0031] Compared with the prior art, the beneficial effects of the utility model are:

[0032] 1. The utility model sets a limit mechanism and a hand-held mechanism, and rotates the extension rod on the built-in ratchet, thereby adjusting the angle between the built-in ratchet and the extension rod to adapt to the situation where the traction converter cabinet is not hoisted out, and the limit mechanism limits the extension rod after the rotation angle, and keeps the angle formed between the extension rod and the built-in ratchet stable. The hand-held mechanism drives the extension rod to rotate to drive the built-in ratchet to rotate synchronously, so as to achieve the effect of fastening the porcelain bottle, and solves the problem that the locking nut of the porcelain bottle cannot be fastened due to the limited fastening position when the traction converter cabinet is not hoisted out. It is easy to use, shortens the operation time, improves labor efficiency, and reduces costs.

[0033] 2. The utility model provides a storage mechanism, the plug-in rod enters the plug-in groove, and the plug-in rod abuts against the side wall of the connecting rod. Under the action of the plug-in rod and the convex ring, the connecting rod is restricted from displacement on the storage seat, so that the position of the hand-held mechanism on the storage seat is stable, thereby realizing the storage of the hand-held mechanism and avoiding the hand-held mechanism and the extension rod from being separated when not in operation, that is, better preserving the hand-held mechanism and avoiding loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0035] Figure 1 This is a state diagram of the butt joint sleeve in the utility model being parallelly sleeved on the square rod;

[0036] Figure 2 It is a schematic diagram of the separation structure of the butt joint sleeve and the square rod in the utility model;

[0037] Figure 3 This is a state diagram of the butt joint sleeve in the utility model being vertically sleeved on the square rod;

[0038] Figure 4 This is a diagram showing the connection state of the built-in ratchet and the movable joint in the utility model;

[0039] Figure 5 This is a structural schematic diagram of the storage mechanism of the utility model;

[0040] Figure 6 For this utility model Figure 5 The enlarged view of point A in the middle;

[0041] Figure 7 This is the second structural schematic diagram of the storage mechanism of the utility model.

[0042] In the figure: 1. built-in ratchet; 11. notch; 21. extension rod; 22. screw rod; 23. movable nut; 24. square head rod; 25. movable joint; 31. docking sleeve; 32. connecting rod; 322. convex ring; 33. handle; 34. sleeve hole; 41. storage seat; 411. through hole; 412. plug-in slot; 42. card slot; 43. limit plate; 44. plug-in rod; 45. spring. DETAILED DESCRIPTION

[0043] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0044] Example 1

[0045] See also Figure 1-4 , an open-end ratchet wrench, comprising a built-in ratchet 1 and an extension rod 21 rotatably arranged on the built-in ratchet 1, and further comprising:

[0046] A hand-held mechanism, which is disposed on the extension rod 21 and is used to drive the extension rod 21 and the built-in ratchet 1 to rotate synchronously;

[0047] The limiting mechanism is arranged on the built-in ratchet 1 and is used to limit the extension rod 21 from rotating on the built-in ratchet 1 .

[0048] With such a design, the extension rod 21 is rotated on the built-in ratchet 1, thereby adjusting the angle between the built-in ratchet 1 and the extension rod 21 to adapt to the tightening of the porcelain bottle when the traction converter cabinet is not lifted out. The limiting mechanism limits the extension rod 21 after the rotation angle to keep the angle formed between the extension rod 21 and the built-in ratchet 1 stable. The hand-held mechanism drives the extension rod 21 to rotate to drive the built-in ratchet 1 to rotate synchronously, thereby achieving the effect of tightening the porcelain bottle, solving the problem that the porcelain bottle locking nut cannot be tightened due to the limited tightening position when the traction converter cabinet is not lifted out. It is easy to use, shortens the operation time, improves labor efficiency and reduces costs.

[0049] In one embodiment, a movable joint 25 is provided at one end of the extension rod 21 close to the built-in ratchet 1 , and the movable joint 25 is rotatably connected to the built-in ratchet 1 .

[0050] In one embodiment, a notch 11 is provided on the built-in ratchet 1 for the movable joint 25 to rotate.

[0051] In one embodiment, the limiting mechanism includes:

[0052] The screw rod 22 is disposed between the extension rod 21 and the movable joint 25;

[0053] The movable nut 23 is disposed on the screw rod 22 and threadedly connected to the screw rod 22 for abutting against the built-in ratchet 1 .

[0054] In this design, one end of the screw rod 22 is fixedly connected to the movable joint 25, and the other end is fixedly connected to the extension rod 21; when it is necessary to adjust the angle between the extension rod 21 and the built-in ratchet 1, the movable nut 23 is rotated to move the movable nut 23 away from the built-in ratchet 1, which makes it easy to flexibly rotate the extension rod 21 on the built-in ratchet 1; after adjusting the angle between the extension rod 21 and the built-in ratchet 1, it is necessary to maintain the stability of the angle formed between the extension rod 21 and the built-in ratchet 1, and at this time, the movable nut 23 is rotated in the opposite direction to move the movable nut 23 toward the built-in ratchet 1 until the movable nut 23 abuts against the built-in ratchet 1, thereby limiting the extension rod 21 from continuing to rotate on the movable nut 23.

[0055] In one embodiment, the handheld mechanism comprises:

[0056] The square rod 24 is arranged at one end of the extension rod 21 away from the built-in ratchet 1;

[0057] A docking sleeve 31 is sleeved on the square rod 24 and is used to rotate the square rod 24;

[0058] A sleeve hole 34 is provided on the butt sleeve 31 and is used for the square rod 24 to pass through;

[0059] A connecting rod 32 is provided on the butt joint sleeve 31;

[0060] The handle 33 is disposed at one end of the connecting rod 32 away from the docking sleeve 31 .

[0061] In this design, the square rod 24 is fixedly connected to the extension rod 21; one end of the connecting rod 32 is fixedly connected to the docking sleeve 31, and the other end is fixedly connected to the handle 33; the docking sleeve 31 is sleeved on the square rod 24, and the handle 33 is manually held and rotated, thereby driving the square rod 24, the extension rod 21 and the built-in ratchet 1 to rotate synchronously.

[0062] Example 2

[0063] This embodiment is improved on the basis of embodiment 1, and its improvement is: Figure 5-7 As shown, a storage mechanism is provided on the extension rod 21 for storing the hand-held mechanism in the finished operation state;

[0064] The collection agencies include:

[0065] The storage seat 41 is U-shaped and disposed on one side of the extension rod 21;

[0066] The convex ring 322 is sleeved on the connecting rod 32;

[0067] The card slot 42 is provided on the receiving seat 41 and is used for the convex ring 322 to be carded;

[0068] The plug-in assembly is disposed on the storage seat 41 and is used to limit the movement of the connecting rod 32 .

[0069] With this design, the storage seat 41 is fixedly connected to the extension rod 21 .

[0070] In one embodiment, the plug assembly includes:

[0071] The plug-in rod 44 is slidably disposed on the storage seat 41;

[0072] A through hole 411 is provided at the top of the receiving seat 41 and is used for the insertion rod 44 to pass through;

[0073] The plug-in slot 412 is provided at the bottom of the storage seat 41 and is for the plug-in rod 44 to be plugged in;

[0074] A limiting plate 43 is provided at one end of the plug-in rod 44;

[0075] The spring 45 is sleeved on the plug-in rod 44 and has one end connected to the limiting plate 43 and the other end connected to the upper end of the storage seat 41 .

[0076] The design is such that the upper end of the plug-in rod 44 is fixedly connected to the limit plate 43; one end of the spring 45 is fixedly connected to the limit plate 43, and the other end is fixedly connected to the upper end of the storage seat 41; the limit plate 43 is lifted upward to drive the plug-in rod 44 to move upward, at this time, the spring 45 is in a compressed state, and the storage seat 41 is in an open state, and then the connecting rod 32 is translated into the storage seat 41, the convex ring 322 matches the slot 42, and then the limit plate 43 is released, and under the action of the spring 45, the plug-in rod 44 enters the plug-in slot 412, and the plug-in rod 44 abuts against the side wall of the connecting rod 32, under the action of the plug-in rod 44 and the convex ring 322, the connection rod 32 is limited from being displaced on the storage seat 41, so that the position of the hand-held mechanism on the storage seat 41 is stable, thereby realizing the storage of the hand-held mechanism, avoiding the hand-held mechanism and the extension rod 21 from being separated when not in operation, that is, better preserving the hand-held mechanism and avoiding loss.

[0077] Working principle: When in use, the extension rod 21 is rotated on the built-in ratchet 1, thereby adjusting the angle between the built-in ratchet 1 and the extension rod 21 to adapt to the tightening of the porcelain bottle when the traction converter cabinet is not lifted out. The limiting mechanism limits the extension rod 21 after the rotation angle to keep the angle formed between the extension rod 21 and the built-in ratchet 1 stable. The hand-held mechanism drives the extension rod 21 to rotate to drive the built-in ratchet 1 to rotate synchronously, thereby achieving the effect of tightening the porcelain bottle.

[0078] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0079] In addition, if there are descriptions of "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or schemes that A and B meet at the same time. In addition, "multiple" refers to more than two. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as illustrative and non-restrictive, and the scope of the present invention is limited by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

Claims

1. An open-end ratchet wrench, characterized in that: The invention comprises a built-in ratchet (1) and an extension rod (21) rotatably arranged on the built-in ratchet (1), and further comprises: A hand-held mechanism, arranged on the extension rod (21) and used to drive the extension rod (21) and the built-in ratchet wheel (1) to rotate synchronously; A limiting mechanism is provided on the built-in ratchet (1) and is used to limit the rotation of the extension rod (21) on the built-in ratchet (1).

2. The open-end ratchet wrench according to claim 1, characterized in that: A movable joint (25) is provided at one end of the extension rod (21) close to the built-in ratchet (1), and the movable joint (25) is rotatably connected to the built-in ratchet (1).

3. The open-end ratchet wrench according to claim 2, characterized in that: The built-in ratchet (1) is provided with a notch (11) for allowing the movable joint (25) to rotate.

4. The open-end ratchet wrench according to claim 2, characterized in that: The limiting mechanism comprises: A screw rod (22) is disposed between the extension rod (21) and the movable joint (25); A movable nut (23) is disposed on the screw rod (22) and is threadedly connected to the screw rod (22) and is used for abutting against the built-in ratchet (1).

5. The open-end ratchet wrench according to claim 1, characterized in that: The handheld mechanism comprises: A square rod (24) is arranged at one end of the extension rod (21) away from the built-in ratchet (1); A docking sleeve (31) sleeved on the square rod (24) and used to rotate the square rod (24); A sleeve hole (34), provided on the butt sleeve (31) and used for the square head rod (24) to pass through; A connecting rod (32) is arranged on the butt joint sleeve (31); A handle (33) is provided at an end of the connecting rod (32) away from the docking sleeve (31).

6. The open-end ratchet wrench according to claim 5, characterized in that: The extension rod (21) is provided with a storage mechanism for storing the handheld mechanism in a finished operation state; The storage mechanism comprises: A storage seat (41) is U-shaped and is disposed on one side of the extension rod (21); A convex ring (322) sleeved on the connecting rod (32); A clamping groove (42) is provided on the receiving seat (41) and is used for clamping the convex ring (322); A plug-in assembly is arranged on the storage seat (41) and is used to limit the movement of the connecting rod (32).

7. The open-end ratchet wrench according to claim 6, characterized in that: The plug-in assembly comprises: A plug-in rod (44) slidably disposed on the storage seat (41); A through hole (411) is provided at the top of the storage seat (41) and is used for the insertion rod (44) to pass through; A plug-in slot (412), provided at the bottom of the storage seat (41) and for the plug-in rod (44) to be plugged in; A limiting plate (43) is arranged at one end of the plug-in rod (44); A spring (45) is sleeved on the plug-in rod (44) and has one end connected to the limit plate (43) and the other end connected to the upper end of the storage seat (41).

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