Safety door protection device for power tongs

Abstract

The utility model relates to the related technical field of power tong safety protection, in particular to a power tong safety door protection device which comprises a tong body and a protection mechanism, and the protection mechanism is arranged on one side of the surface of the tong body. According to the protection device for the safety door of the power tongs, through the arrangement of the protection mechanism, a second handle is pulled to drive a protection plate to slide out of a sliding groove, a pull ring is pulled to drive a limiting block to slide towards the interior of a movable groove through a steel cable, and meanwhile, a spring is subjected to compression deformation; a protection plate is pulled through a first handle, so that one end of the protection plate is completely embedded into a fixed groove, at the moment, a clamping groove is aligned with a movable groove, then acting force applied to a pull ring is released, a spring rebounds and deforms to drive a limiting block to return to the original position, and at the moment, one end of the limiting block is embedded into the clamping groove; therefore, the limiting block fixes the protection plate, and at the moment, the protection plate plays a role in protecting the clamp body.

Description

Technical Field

[0001] This utility model relates to the technical field of power clamp safety protection, and in particular to a safety door protection device for power clamps. Background Technology

[0002] Power clamps are tools widely used in the oil, gas, and machining industries, primarily for threaded connections of tubing, casing, drill pipe, and other tubing strings. Their core function is to achieve efficient clamping and rotation of the tubing string through hydraulic or mechanical drive, thereby reducing manual labor intensity and improving work efficiency. The working jaws directly contact the tubing string, and their design and manufacturing quality directly affect the operational results. Different types of clamps can be replaced according to requirements. Some power clamps are equipped with automatic opening and closing safety doors, providing safety protection during operation and preventing the operator's hands from entering the danger zone. Therefore, a safety door protection device for power clamps is particularly needed.

[0003] However, in most existing power clamp safety door protection devices, the power clamp installation door is only protected by a protective cover during operation. The protective cover is fixed by bolts, which makes the operation cumbersome when disassembling and assembling. Utility Model Content

[0004] The purpose of this utility model is to provide a safety door protection device for power clamps, in order to solve the problem mentioned in the background art that most existing safety door protection devices for power clamps only protect the power clamp installation door during use, and the protective cover is fixed by bolts, which makes the operation cumbersome when disassembling and assembling.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a safety door protection device for a power clamp, comprising a clamp body and a protection mechanism, wherein the protection mechanism is provided on one side of the surface of the clamp body;

[0006] The protective mechanism includes a mounting base, a fixed base, a sliding groove, a limiting groove, a fitting groove, a protective plate, a limiting strip, a first handle, a second handle, a locking groove, a fixing groove, a movable groove, a limiting block, a steel cable, a spring, and a pull ring. The mounting base is fixedly connected to one side of the clamp body, and a fixed base is fixedly connected to the other side of the clamp body. The mounting base has a sliding groove inside, and a limiting groove inside. A fitting groove is formed on one side of the mounting base, and a protective plate is fitted inside the sliding groove. Limiting strips are fixedly connected to both sides of the protective plate. A first handle is fixedly connected to one side of the protective plate, and a second handle is fixedly connected to one end of the protective plate. A locking groove is formed on one side of the protective plate, and a fixing groove is formed on one side of the fixed base. A movable groove is formed inside the fixed base, and a limiting block is fitted inside the movable groove. A steel cable is fixedly connected to one end of the limiting block, and a spring is sleeved on the surface of the steel cable. A pull ring is fixedly connected to one end of the steel cable.

[0007] Preferably, the limiting groove is a dovetail groove, and the limiting strip is a dovetail strip.

[0008] Preferably, the dimensions of the limiting strip and the limiting groove are matched.

[0009] Preferably, the protective plate forms a sliding structure with the mounting base via a groove.

[0010] Preferably, the first handle is fitted into the interior of the mounting base via a fitting groove.

[0011] Preferably, one end of the limiting block is fitted inside the movable groove, and the other end of the limiting block is fitted inside the card slot.

[0012] Preferably, the spring is disposed inside the movable groove, one end of the spring is fixedly connected to the limiting block, and the other end of the spring is fixedly connected to the fixed base.

[0013] Preferably, one end of the steel cable passes through the fixed base and is fixedly connected to the pull ring.

[0014] Compared with the prior art, the beneficial effects of this utility model are: the safety door protection device for power clamps, through the setting of the protection mechanism, only requires pulling the first handle, the second handle and the pull ring to install and fix the protection plate during use, which is simple and quick to operate and has high work efficiency. Attached Figure Description

[0015] Figure 1 This is a side view of the appearance structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the protective mechanism of this utility model;

[0017] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0018] Figure 4 This is a schematic diagram of the structure in which the mounting base and protective plate of this utility model cooperate with each other.

[0019] In the diagram: 1. Clamp body; 2. Protective mechanism; 201. Mounting base; 202. Fixed base; 203. Slide groove; 204. Limiting groove; 205. Fitting groove; 206. Protective plate; 207. Limiting strip; 208. First handle; 209. Second handle; 210. Card slot; 211. Fixed groove; 212. Movable groove; 213. Limiting block; 214. Steel cable; 215. Spring; 216. Pull ring. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-4 The present invention provides a technical solution: a safety door protection device for a power clamp, comprising a clamp body 1 and a protection mechanism 2, wherein the protection mechanism 2 is provided on one side of the surface of the clamp body 1;

[0022] The protective mechanism 2 includes a mounting base 201, a fixed base 202, a sliding groove 203, a limiting groove 204, a fitting groove 205, a protective plate 206, a limiting strip 207, a first handle 208, a second handle 209, a slot 210, a fixing groove 211, a movable groove 212, a limiting block 213, a steel cable 214, a spring 215, and a pull ring 216. The mounting base 201 is fixedly connected to one side of the clamp body 1, and the fixed base 202 is fixedly connected to the other side of the clamp body 1. The mounting base 201 has a sliding groove 203 and a limiting groove 204 inside. A fitting groove 205 is formed on one side of the mounting base 201. A protective plate 206 is fitted inside the sliding groove 203. The protective plate 206 has two sides... A limiting strip 207 is fixedly connected. A first handle 208 is fixedly connected to one side of the surface of the protective plate 206, and a second handle 209 is fixedly connected to one end of the protective plate 206. A slot 210 is formed on one side of the surface of the protective plate 206. A fixing groove 211 is formed on one side of the surface of the fixed base 202. A movable groove 212 is formed inside the fixed base 202. A limiting block 213 is fitted inside the movable groove 212. A steel cable 214 is fixedly connected to one end of the limiting block 213. A spring 215 is sleeved on the surface of the steel cable 214. A pull ring 216 is fixedly connected to one end of the steel cable 214. By installing the base 201, the fixed base 202, the slide groove 203, the limiting groove 204, the fitting groove 205, the protective plate 206, the limiting strip 207, and the first handle 209, a locking groove 208 is fixedly connected to one side of the protective plate 206. The arrangement of handle 208, second handle 209, slot 210, fixing slot 211, movable slot 212, limiting block 213, steel cable 214, spring 215, and pull ring 216, during use, is as follows: Because the protective plate 206 is fitted inside the slide groove 203, the limiting strip 207 is a dovetail-shaped strip, and the limiting groove 204 is a dovetail-shaped groove, the limiting strip 207 is fitted inside the limiting groove 204. Pulling the second handle 209 causes the protective plate 206 to slide out of the slide groove 203. After sliding out, the protective plate 206 causes the first handle 208 to slide out of the fitting groove 205. Pulling the first handle 208 then causes the protective plate 206 to continue sliding. Subsequently, pulling the pull ring 216 causes the pull ring 216 to slide out of the sliding groove 205. 16. The steel cable 214 drives the limiting block 213 to slide into the movable groove 212. At the same time, the limiting block 213 compresses the spring 215, causing the spring 215 to deform inside the movable groove 212. When the limiting block 213 is fully engaged inside the movable groove 212, the first handle 208 pulls the protective plate 206, causing one end of the protective plate 206 to be fully engaged inside the fixed groove 211. At this time, the locking groove 210 is aligned with the movable groove 212. Then, the force applied to the pull ring 216 is released, and the spring 215 rebounds. The rebounding spring 215 drives the limiting block 213 back to its original position. At this time, one end of the limiting block 213 is engaged inside the movable groove 212, and the other end is engaged inside the locking groove 210.Thus, the limiting block 213 fixes the protective plate 206, at which point the protective plate 206 protects the clamp body 1.

[0023] Furthermore, the limiting groove 204 is a dovetail groove, and the limiting strip 207 is a dovetail strip. Through the setting of the limiting groove 204 and the limiting strip 207, the limiting strip 207 of the dovetail strip is fitted into the limiting groove 204 of the dovetail groove, which can play a limiting role for the protective plate 206.

[0024] Furthermore, the dimensions of the limiting strip 207 and the limiting groove 204 are matched.

[0025] Furthermore, the protective plate 206 forms a sliding structure with the mounting base 201 through the sliding groove 203. With the setting of the protective plate 206, when one end of the protective plate 206 is fixed inside the fixed base 202 during use, the protective plate 206 can protect the clamp body 1.

[0026] Furthermore, the first handle 208 is fitted into the mounting base 201 through the fitting groove 205. With the first handle 208 in use, it is convenient to pull the protective plate 206 to adjust its position.

[0027] Furthermore, one end of the limiting block 213 is fitted inside the movable groove 212, and the other end of the limiting block 213 is fitted inside the card slot 210. By setting the limiting block 213, when one end of the limiting block 213 is fitted inside the movable groove 212 and the other end is fitted inside the card slot 210, the protection plate 206 can be limited.

[0028] Furthermore, spring 215 is set inside the movable groove 212. One end of spring 215 is fixedly connected to limit block 213, and the other end of spring 215 is fixedly connected to fixed base 202. With the setting of spring 215, when spring 215 loses the squeezing force, it will rebound and deform, thereby driving limit block 213 to return to its original position.

[0029] Furthermore, one end of the steel cable 214 passes through the fixed base 202 and is fixedly connected to the pull ring 216. Through the setting of the steel cable 214, the steel cable 214 can easily transmit the force applied to the pull ring 216 to the limit block 213 during use.

[0030] Working principle: Since the protective plate 206 is fitted inside the slide groove 203, the limiting strip 207 is a dovetail-shaped strip, and the limiting groove 204 is a dovetail-shaped groove, the limiting strip 207 is fitted inside the limiting groove 204. Pulling the second handle 209 causes the protective plate 206 to slide out of the slide groove 203. After sliding out, the protective plate 206 causes the first handle 208 to slide out of the fitting groove 205. Pulling the first handle 208 causes the protective plate 206 to continue sliding. Then, pulling the pull ring 216 causes the limiting block 213 to slide into the movable groove 212 via the steel cable 214. Simultaneously, the limiting block 213 compresses the spring 215, causing the spring 21... 5. The limiting block 213 is fully engaged in the movable groove 212. When the limiting block 213 is fully engaged in the movable groove 212, the first handle 208 pulls the protective plate 206 so that one end of the protective plate 206 is fully engaged in the fixed groove 211. At this time, the slot 210 is aligned with the movable groove 212. Then, the force applied to the pull ring 216 is released, and the spring 215 rebounds. The rebounding spring 215 drives the limiting block 213 back to its original position. At this time, one end of the limiting block 213 is engaged in the movable groove 212, and the other end is engaged in the slot 210. Thus, the limiting block 213 fixes the protective plate 206. At this time, the protective plate 206 protects the clamp body 1.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A safety door protection device for a power clamp, comprising a clamp body (1) and a protection mechanism (2), characterized in that: A protective mechanism (2) is provided on one side of the surface of the clamp (1); The protective mechanism (2) includes a mounting base (201), a fixed base (202), a sliding groove (203), a limiting groove (204), a fitting groove (205), a protective plate (206), a limiting strip (207), a first handle (208), a second handle (209), a card slot (210), a fixed groove (211), a movable groove (212), a limiting block (213), a steel cable (214), a spring (215), and a pull ring (216). The mounting base (201) is fixedly connected to one side of the surface of the clamp body (1), and the fixed base (202) is fixedly connected to the other side of the surface of the clamp body (1). The mounting base (201) has a sliding groove (203) inside, a limiting groove (204) inside, and a fitting groove (205) on one side of the surface of the mounting base (201). A protective plate (206) is fitted inside the slide groove (203). Limiting strips (207) are fixedly connected to both sides of the protective plate (206). A first handle (208) is fixedly connected to one side of the surface of the protective plate (206). A second handle (209) is fixedly connected to one end of the protective plate (206). A slot (210) is opened on one side of the surface of the protective plate (206). A fixing groove (211) is opened on one side of the surface of the fixed base (202). A movable groove (212) is opened inside the fixed base (202). A limiting block (213) is fitted inside the movable groove (212). A steel cable (214) is fixedly connected to one end of the limiting block (213). A spring (215) is sleeved on the surface of the steel cable (214). A pull ring (216) is fixedly connected to one end of the steel cable (214).

2. The safety door protection device for a power clamp according to claim 1, characterized in that: The limiting groove (204) is a dovetail groove, and the limiting strip (207) is a dovetail strip.

3. The safety door protection device for power clamps according to claim 1, characterized in that: The dimensions of the limiting strip (207) and the limiting groove (204) are matched.

4. A safety door protection device for power clamps according to claim 1, characterized in that: The protective plate (206) forms a sliding structure with the mounting base (201) through the slide groove (203).

5. A safety door protection device for power clamps according to claim 1, characterized in that: The first handle (208) is fitted into the interior of the mounting base (201) via a fitting groove (205).

6. A safety door protection device for power clamps according to claim 1, characterized in that: One end of the limiting block (213) is fitted inside the movable groove (212), and the other end of the limiting block (213) is fitted inside the card slot (210).

7. A safety door protection device for power clamps according to claim 1, characterized in that: The spring (215) is located inside the movable groove (212). One end of the spring (215) is fixedly connected to the limiting block (213), and the other end of the spring (215) is fixedly connected to the fixed base (202).

8. A safety door protection device for power clamps according to claim 1, characterized in that: One end of the steel cable (214) passes through the fixed base (202) and is fixedly connected to the pull ring (216).

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