Gate valve wrench

Abstract

The utility model discloses a gate valve wrench, which belongs to the technical field of wrenches and comprises a first support rod, a second support rod, a first stop lever and a second stop lever. The first stop lever and the second stop lever are vertically connected to the first supporting rod. The second supporting rod is connected with the first supporting rod through a hinge, a sliding groove is formed in the second supporting rod, a sliding block is arranged in the sliding groove and connected with a clamping block through a connecting frame, a clamping groove is formed in the first supporting rod, and an opening groove is formed in the clamping groove. The second supporting rod is rotationally unfolded, the clamping block enters the end of the clamping groove through the opening groove, the sliding block slides in the sliding groove to drive the clamping block to be slidably clamped into the clamping groove, and reliable end-to-end connection between the second supporting rod and the first supporting rod is achieved; and the gate valve can be opened and closed conveniently. The sliding block is reversely pushed to slide in the sliding groove, the clamping block is driven to slide out of the clamping groove, the second supporting rod is rotated relative to the first supporting rod, folding is achieved, the arm of force is greatly shortened, and the folding device can be flexibly suitable for working conditions with narrow space, is convenient to store and carry and improves use convenience and flexibility.

Description

Technical Field

[0001] The utility model belongs to the technical field of wrenches, in particular to a gate valve wrench. Background Art

[0002] A gate valve is a gate plate that opens and closes. The movement direction of the gate plate is perpendicular to the direction of the fluid. The gate valve can only be fully opened or fully closed, and cannot be adjusted or throttled. The gate valve is sealed by the contact between the valve seat and the gate plate. Usually, the sealing surface is welded with metal materials to increase wear resistance, such as 1Cr13, STL6, stainless steel, etc. The gate plate has a rigid gate plate and an elastic gate plate. According to the different gate plates, the gate valve is divided into a rigid gate valve and an elastic gate valve.

[0003] Gate valves are usually installed on the outlet pipes of centrifugal pumps and mixed flow pumps to open and close the waterway. Due to the drilling pressure and long-term non-opening, it is difficult to open the drilled gate valve manually.

[0004] When opening and closing the existing gate valve, the staff manually twists the gate valve handle, which is not only time-consuming and laborious, but also makes the gate valve open and close for a long time, affecting normal use.

[0005] In addition, there is a gate valve wrench, which is welded into an F-shaped structure by steel bars (steel pipes), and has an operating rod and two levers. When in use, the two levers are inserted into the gate valve handle, and the gate valve is opened and closed by bending the operating rod. However, in actual applications, there are some special occasions, such as small space and insufficient lever arm of the operating rod. The single F-type wrench has great limitations, so gate valve wrenches with operating rods of different lengths are required, which not only increases the manufacturing cost, but also makes the storage and carrying of the gate valve wrench (especially the gate valve wrench with a longer operating rod) inconvenient, occupies a large space, and is not practical. Utility Model Content

[0006] In order to solve the problems that it is time-consuming and laborious to manually tighten a gate valve, and that a traditional F-type wrench has great limitations and poor practicality, the utility model provides a gate valve wrench.

[0007] The utility model is realized by the following technical solutions:

[0008] A gate valve wrench comprises a first support rod, a second support rod, a first stop rod and a second stop rod; the first stop rod and the second stop rod are respectively vertically fixedly connected to the first support rod to form an F-shaped structure; the second support rod is rotatably connected to one end of the first support rod through a hinge, a slide groove is provided on the second support rod, a slider is slidably installed in the slide groove, the slider is connected to a clamping block through a connecting frame, a clamping groove capable of slidably engaging the clamping block is provided on the first support rod, and an open groove for the clamping block to pass through is provided at one end of the clamping groove.

[0009] A further improvement of the utility model is that a spring capable of elastically supporting the sliding block toward the first support rod is arranged in the sliding groove, and the opening groove is arranged at one end of the clamping groove close to the second support rod.

[0010] A further improvement of the utility model is that the clamping slot is a T-shaped slot.

[0011] A further improvement of the utility model is that the hinge is arranged on a side of the first support rod away from the first baffle rod and the second baffle rod.

[0012] A further improvement of the utility model is that the slide groove is arranged on a side of the second support rod away from the hinge; and the clamping groove is arranged on a side of the first support rod away from the hinge.

[0013] A further improvement of the utility model is that a locking rod is provided at one end of the second support rod away from the first support rod, and a locking groove capable of engaging with the locking rod is provided at one end of the first support rod away from the second support rod.

[0014] A further improvement of the utility model is that the end of the second support rod away from the first support rod is rotatably connected to a connecting rod, and the locking rod is arranged on the connecting rod.

[0015] It can be seen from the above technical solutions that the beneficial effects of the utility model are:

[0016] When in use, the second support rod rotates and unfolds relative to the first support rod (through a hinge), and at the same time, the block passes through the open slot and enters the end of the slot. The slider slides in the slot, and the block is driven to slide into the slot through the connecting frame, so that the second support rod and the first support rod are reliably connected end to end; the lever arm during use can be greatly extended, which is convenient for opening and closing the gate valve. When the space is small or the gate valve wrench is not in use, the slider is pushed in the opposite direction to slide in the slot, and the block is driven to slide out of the slot through the connecting frame, and the second support rod is rotated relative to the first support rod, so that the block is removed from the open slot, and the second support rod is folded and overlapped with the first support rod, so that the lever arm is greatly shortened, so that it can be flexibly applied to working conditions with small spaces, and is easy to store and carry, improving the convenience and flexibility of use. The overall structure is simple, easy to use, and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the utility model, the drawings required for use in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a structural schematic diagram of a specific implementation method of the utility model.

[0019] Figure 2 for Figure 1Schematic diagram of the partially enlarged structure of part A in the middle.

[0020] Figure 3 It is a schematic diagram of the use status of a specific implementation method of the utility model.

[0021] In the accompanying drawings: 1. first support rod; 2. second support rod; 3. hinge; 4. first stop rod; 5. second stop rod; 6. slide groove; 7. slider; 8. spring; 9. connecting frame; 10. block; 11. slot; 12. opening slot; 13. connecting rod; 14. locking rod; 15. locking slot. DETAILED DESCRIPTION

[0022] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme of the utility model will be clearly and completely described below in combination with the drawings in the specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the utility model, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0023] like Figure 1-3 As shown, the utility model discloses a gate valve wrench, comprising a first support rod 1, a second support rod 2, a first stop rod 4 and a second stop rod 5; the first stop rod 4 and the second stop rod 5 are respectively vertically fixedly connected to the first support rod 1 to form an F-shaped structure, that is, Figure 1 As shown, the first support rod 1 is placed horizontally, the first stop rod 4 and the second stop rod 5 are vertically welded to the lower side of the first support rod 1, and the first stop rod 4 is located at the left end of the first support rod 1. The first stop rod 4 and the second stop rod 5 have a certain distance to facilitate the engagement of the gate valve handle. The second support rod 2 is rotatably connected to the right end of the first support rod 1 through a hinge 3. The end of the second support rod 2 close to the first support rod 1 is provided with a slide groove 6 along its length direction, and a slider 7 is slidably installed in the slide groove 6. The slider 7 is connected to a block 10 through a connecting frame 9. The end of the first support rod 1 close to the second support rod 2 is provided with a slot 11 that can slide and engage with the block 10 (along the length direction of the first support rod 1), and one end of the slot 11 is provided with an open slot 12 that can allow the block 10 to pass.

[0024] When the gate valve wrench is used, the second support rod 2 is rotated and unfolded relative to the first support rod 1 (through the hinge 3), and at the same time, the block 10 enters the end of the slot 11 through the opening slot 12, and the slider 7 slides in the slide slot 6, and drives the block 10 to slide and snap into the slot 11 through the connecting frame 9, so that the second support rod 2 and the first support rod 1 are reliably connected end to end. Figure 1As shown; the lever arm during use can be greatly extended, which is convenient for opening and closing the gate valve. When the space is small or the gate valve wrench is not in use, the slider 7 is pushed in the opposite direction to slide in the slide groove 6, and the block 10 is driven to slide out of the slot 11 through the connecting frame 9, and the second support rod 2 is rotated relative to the first support rod 1, so that the block 10 is disengaged from the opening slot 12, and the second support rod 2 is folded and overlapped with the first support rod 1, so that the lever arm is greatly shortened, so that it can be flexibly applied to working conditions with small space, and is easy to store and carry, improving the convenience and flexibility of use. The overall structure is simple, easy to use, and practical.

[0025] The slide groove 6 is provided with a spring 8 that can elastically support the slider 7 toward the first support rod 1, and the opening groove 12 is provided at one end of the slot 11 close to the second support rod 2 (the right end of the slot 11). The spring 8 can realize the automatic sliding engagement of the block 10 in the slot 11 to avoid it from falling out during use, thereby ensuring the convenience and reliability of use.

[0026] The clamping groove 11 is a T-shaped groove, and the clamping block 10 is a T-shaped clamping block, so as to achieve good sliding fit and clamping.

[0027] Among them, the hinge 3 is arranged on the side of the first support rod 1 away from the first baffle rod 4 and the second baffle rod 5, that is, the hinge 3 is arranged on the upper side of the right end of the first support rod 1. When the second support rod 2 and the first support rod 1 are folded, interference between the second support rod 2 and the first baffle rod 4 and the second baffle rod 5 is avoided, and the reliability of the rotation connection position connection during use is guaranteed.

[0028] The slide groove 6 is arranged on the side of the second support rod 2 away from the hinge 3; the clamping groove 11 is arranged on the side of the first support rod 1 away from the hinge 3. Figure 1-2 As shown, the slide slot 6 and the clamping slot 11 are both arranged at the lower side, which effectively ensures the reliability of the connection between the first support rod 1 and the second support rod 2 in the unfolded state.

[0029] Among them, a locking rod 14 is provided at one end of the second support rod 2 away from the first support rod 1, a locking groove 15 capable of engaging with the locking rod 14 is provided at one end of the first support rod 1 away from the second support rod 2, and a connecting rod 13 is rotatably connected and installed at one end of the second support rod 2 away from the first support rod 1, and the locking rod 14 is arranged on the connecting rod 13. When the second support rod 2 and the first support rod 1 are folded, the locking rod 14 is engaged with the locking groove 15 to achieve reliability of the folded state and avoid arbitrary unfolding.

[0030] Furthermore, the locking groove 15 has a certain clamping force on the locking rod 14, that is, a certain static friction force, which prevents the locking rod 14 from falling out and prevents the second support rod 2 and the first support rod 1 from automatically unfolding.

[0031] When the gate valve wrench is used, the second support rod 2 is rotated and unfolded relative to the first support rod 1 (through the hinge 3), and the block 10 is made to enter the end of the slot 11 through the opening slot 12, and the slider 7 slides in the slide slot 6, and the block 10 is driven to slide and snap into the slot 11 through the connecting frame 9, so that the second support rod 2 and the first support rod 1 are reliably connected end to end. Figure 1 As shown; the lever arm during use can be greatly extended, which is convenient for opening and closing the gate valve. When the space is small or the gate valve wrench is not in use, the slider 7 is pushed in the opposite direction to slide in the slide groove 6, and the block 10 is driven to slide out of the slot 11 through the connecting frame 9, and the second support rod 2 is rotated relative to the first support rod 1, so that the block 10 is disengaged from the opening slot 12, and the second support rod 2 is folded and overlapped with the first support rod 1, so that the lever arm is greatly shortened, so that it can be flexibly applied to working conditions with small space, and is easy to store and carry, improving the convenience and flexibility of use. The overall structure is simple, easy to use, and practical.

[0032] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referenced to each other.

[0033] The terms "upper", "lower", "outer side", "inner side", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish the relative relationship in position if they exist, and do not need to be qualitative. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the utility model described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0034] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A gate valve wrench, characterized in that: The invention comprises a first support rod (1), a second support rod (2), a first blocking rod (4) and a second blocking rod (5); the first blocking rod (4) and the second blocking rod (5) are respectively vertically fixedly connected to the first support rod (1) to form an F-shaped structure; the second support rod (2) is rotatably connected to one end of the first support rod (1) via a hinge (3); a slide groove (6) is provided on the second support rod (2); a slider (7) is slidably installed in the slide groove (6); the slider (7) is connected to a clamping block (10) via a connecting frame (9); a clamping groove (11) capable of slidably engaging with the clamping block (10) is provided on the first support rod (1); an opening groove (12) capable of allowing the clamping block (10) to pass is provided at one end of the clamping groove (11).

2. The gate valve wrench according to claim 1, characterized in that: A spring (8) capable of elastically supporting the slide block (7) in the direction of the first support rod (1) is arranged in the slide groove (6), and an opening groove (12) is arranged at one end of the clamping groove (11) close to the second support rod (2).

3. The gate valve wrench according to claim 1, characterized in that: The clamping groove (11) is a T-shaped groove.

4. The gate valve wrench according to claim 1, characterized in that: The hinge (3) is arranged on a side of the first support rod (1) away from the first stop rod (4) and the second stop rod (5).

5. The gate valve wrench according to claim 4, characterized in that: The sliding groove (6) is arranged on a side of the second support rod (2) away from the hinge (3); and the clamping groove (11) is arranged on a side of the first support rod (1) away from the hinge (3).

6. The gate valve wrench according to claim 1, characterized in that: A locking rod (14) is provided at one end of the second support rod (2) away from the first support rod (1), and a locking groove (15) capable of engaging with the locking rod (14) is provided at one end of the first support rod (1) away from the second support rod (2).

7. The gate valve wrench according to claim 6, characterized in that: One end of the second support rod (2) away from the first support rod (1) is rotatably connected to a connecting rod (13), and a locking rod (14) is arranged on the connecting rod (13).

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