Hydraulic power tongs with reset self-locking device

Abstract

The utility model relates to the technical field of hydraulic power tongs, in particular to a hydraulic power tong with a reset self-locking device, a gear is mounted in the middle of the lower portion in a sliding seat, the gear is rotatably connected with the sliding seat, a reset assembly is mounted at the rear end of the lower portion in the sliding seat, and a locking block is mounted on one side of the reset assembly; the device has the beneficial effects that a hydraulic rod drives a sliding block to slide left and right in a sliding seat through a connecting rod, a clamping block moves along with the sliding block, the clamping block and a clamping seat clamp materials between the clamping block and the clamping seat, an electric telescopic rod is in linkage with the hydraulic rod, when the hydraulic rod is started, the electric telescopic rod shrinks to pull a locking block into the sliding seat, the locking block and a locking wheel are unlocked, and the locking wheel rotates freely; after the materials are clamped, the hydraulic rod is closed, the electric telescopic rod is synchronously closed, the spring pops up the locking block to be embedded into the locking wheel, so that the positions of the locking wheel and the gear are locked, the gear clamps the connecting rod through the caulking groove, the position of the sliding block is fixed, and the position of the clamping block is locked.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic power clamps, specifically a hydraulic power clamp with a reset self-locking device. Background Technology

[0002] Hydraulic power tongs are wellhead operation tools powered by a workover rig, primarily used for the mechanized loading and unloading of tubing, drill pipe, and other tubing threads during oil drilling and workover operations. Their basic structure features a suspended mounting design and an open-end tong head, coupled with a jaw plate cam clamping mechanism and a gear transmission system, effectively reducing worker fatigue and improving wellhead operation efficiency. This tool is suitable for both land and marine operating environments, offering high mobility and reliability, and is gradually replacing traditional cathead tongs, lifting tongs, and rope winches.

[0003] Hydraulic power clamps clamp materials using hydraulic power during operation. Existing hydraulic power clamps use a hydraulic cylinder to retract the clamp and grip and fix the items. However, if the hydraulic cylinder depressurizes or leaks pressure, the internal power of the hydraulic cylinder will be insufficient, causing the clamp to retract to a certain extent, which may loosen the items and lead to gripping failure. Therefore, a hydraulic power clamp with a reset and self-locking device is needed. Utility Model Content

[0004] The purpose of this invention is to provide a hydraulic power clamp with a reset self-locking device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a gear is installed in the lower center of the slide block, and the gear is rotatably connected to the slide block; the reset assembly is installed in the lower rear end of the slide block, and a locking block is installed on one side of the reset assembly, with the locking wheel rotating synchronously with the gear.

[0006] Preferably, the reset assembly includes an electric telescopic rod and a spring, with the spring installed above the electric telescopic rod. The electric telescopic rod is linked to the hydraulic rod. When the hydraulic rod is activated, the electric telescopic rod retracts to pull the locking block into the slide. When the hydraulic rod closes, the electric telescopic rod closes simultaneously, and the spring ejects the locking block and embeds it into the locking wheel.

[0007] Preferably, a locking wheel is installed below the locking block, and the locking wheel and the locking block are embedded together. When the locking block retracts, it unlocks from the locking wheel, and the locking wheel rotates freely.

[0008] Preferably, a groove is provided above the gear, and a connecting rod is installed around the groove. The gear locks the connecting rod through the groove, thereby fixing the position of the slider and locking the position of the clamping block.

[0009] Preferably, a hydraulic rod is installed at the right end of the connecting rod, and a slider is installed at the left end of the connecting rod. The hydraulic rod drives the slider to slide left and right in the slide block through the connecting rod.

[0010] Preferably, a clamping block is installed above the slider, and the clamping block is welded to the slider. The clamping block moves with the slider, and the clamping block and the clamping seat clamp the material in the middle.

[0011] Preferably, a clamping seat is installed on the upper left side of the slide, and a protrusion is installed on one side of the clamping seat. Both the clamping block and the inner clamping surface of the clamping seat have protrusions, thereby increasing the clamping friction and preventing the material from slipping.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: the hydraulic rod drives the slider to slide left and right in the slide seat through the connecting rod. The clamping block moves with the slider. The clamping block and the clamp seat clamp the material in the middle. The inner clamping surfaces of the clamping block and the clamp seat have protrusions, thereby increasing the clamping friction and preventing the material from slipping. The electric telescopic rod is linked with the hydraulic rod. When the hydraulic rod is activated, the electric telescopic rod retracts and pulls the locking block into the slide seat. The locking block is unlocked from the locking wheel, and the locking wheel rotates freely. After the material is clamped, the hydraulic rod closes, and the electric telescopic rod closes simultaneously. The spring pops the locking block out and embeds it into the locking wheel, thereby locking the position of the locking wheel and the gear. The gear locks the connecting rod through the groove, thereby fixing the position of the slider and locking the position of the clamping block.

[0013] This utility model proposes a hydraulic power clamp with a reset self-locking device. Attached Figure Description

[0014] Figure 1 This is a frontal three-dimensional structural diagram of the present utility model;

[0015] Figure 2 This is a three-dimensional structural diagram of the back of this utility model;

[0016] Figure 3 This is a partial three-dimensional structural diagram of the reset component of this utility model.

[0017] In the diagram: 1. Slide; 2. Clamp; 3. Protrusion; 4. Slider; 5. Clamping block; 6. Connecting rod; 7. Groove; 8. Hydraulic rod; 9. Gear; 10. Locking wheel; 11. Locking block; 12. Reset assembly; 1201. Electric telescopic rod; 1202. Spring. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0019] Example 1

[0020] Please see Figures 1-3 This utility model provides a technical solution: a gear 9 is installed in the lower center of the slide block 1, and the gear 9 is rotatably connected to the slide block 1. A reset assembly 12 is installed in the lower rear end of the slide block 1, and a locking block 11 is installed on one side of the reset assembly 12. The reset assembly 12 includes an electric telescopic rod 1201 and a spring 1202, and the spring 1202 is installed above the electric telescopic rod 1201. A locking wheel 10 is installed below the locking block 11, and the locking wheel 10 is embeddedly connected to the locking block 11. A groove 7 is provided above the gear 9, and the outer edge of the groove 7... The enclosure is equipped with a connecting rod 6. The electric telescopic rod 1201 is linked with the hydraulic rod 8. When the hydraulic rod 8 is activated, the electric telescopic rod 1201 retracts and pulls the locking block 11 into the slide block 1. The locking block 11 is unlocked from the locking wheel 10, and the locking wheel 10 rotates freely. After the material is clamped, the hydraulic rod 8 closes, and the electric telescopic rod 1201 closes simultaneously. The spring 1202 pops the locking block 11 out and embeds it into the locking wheel 10, thereby locking the position of the locking wheel 10 and the gear 9. The gear 9 locks the connecting rod 6 through the groove 7, thereby fixing the position of the slider 4 and locking the position of the clamping block 5.

[0021] Example 2

[0022] Based on Embodiment 1, a hydraulic rod 8 is installed at the right end of the connecting rod 6, and a slider 4 is installed at the left end of the connecting rod 6. A clamping block 5 is installed above the slider 4, and the clamping block 5 is welded to the slider 4. A clamping seat 2 is installed on the upper left side of the slide seat 1, and a protrusion 3 is installed on one side of the clamping seat 2. The hydraulic rod 8 drives the slider 4 to slide left and right in the slide seat 1 through the connecting rod 6. The clamping block 5 moves with the slider 4. The clamping block 5 and the clamping seat 2 clamp the material in the middle. The inner clamping surfaces of the clamping block 5 and the clamping seat 2 both have protrusions 3, thereby increasing the clamping friction and preventing the material from slipping.

[0023] In actual use, the hydraulic rod 8 drives the slider 4 to slide left and right in the slide seat 1 via the connecting rod 6. The clamping block 5 moves with the slider 4. The clamping block 5 and the clamp seat 2 clamp the material in the middle. The inner clamping surfaces of the clamping block 5 and the clamp seat 2 both have protrusions 3, which increases the clamping friction and prevents the material from slipping. The electric telescopic rod 1201 is linked with the hydraulic rod 8. When the hydraulic rod 8 is started, the electric telescopic rod 1201 retracts and pulls the locking block 11 into the slide seat 1. The locking block 11 is unlocked from the locking wheel 10, and the locking wheel 10 rotates freely. After the material is clamped, the hydraulic rod 8 closes, and the electric telescopic rod 1201 closes simultaneously. The spring 1202 pops the locking block 11 out and embeds it into the locking wheel 10, thereby locking the position of the locking wheel 10 and the gear 9. The gear 9 locks the connecting rod 6 through the groove 7, thereby fixing the position of the slider 4 and locking the position of the clamping block 5.

[0024] 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 hydraulic rescue tool with a reset self-locking device, characterized in that: The hydraulic power clamp with a reset self-locking device includes a slide (1) and a reset assembly (12). A gear (9) is installed in the lower middle part of the slide (1), and the gear (9) is rotatably connected to the slide (1). The reset assembly (12) is installed in the lower rear end of the slide (1), and a locking block (11) is installed on one side of the reset assembly (12).

2. The hydraulic rescue tool with a reset self-locking device according to claim 1, characterized in that: The reset assembly (12) includes an electric telescopic rod (1201) and a spring (1202), and the spring (1202) is installed above the electric telescopic rod (1201).

3. The hydraulic rescue tool with a reset self-locking device according to claim 1, characterized in that: A locking wheel (10) is installed below the locking block (11), and the locking wheel (10) and the locking block (11) are inlaid together.

4. The hydraulic rescue tool with a reset self-locking device according to claim 1, characterized in that: A groove (7) is provided above the gear (9), and a connecting rod (6) is installed around the groove (7).

5. The hydraulic rescue tool with a reset self-locking device according to claim 4, characterized in that: A hydraulic rod (8) is installed at the right end of the connecting rod (6), and a slider (4) is installed at the left end of the connecting rod (6).

6. The hydraulic rescue tool with a reset self-locking device according to claim 5, characterized in that: A clamping block (5) is installed above the slider (4), and the clamping block (5) is welded to the slider (4).

7. The hydraulic rescue tool with a reset self-locking device according to claim 1, characterized in that: A clamp (2) is installed on the upper left side of the slide (1), and a protrusion (3) is installed on one side of the clamp (2).

Images