All-welded ball valve port intersecting line welding machine

Abstract

The utility model relates to the technical field of ball valve welding equipment, in particular to an all-welded ball valve port intersecting line welding machine. According to the technical scheme, the welding device comprises a welding machine and an inlet and outlet formed in the welding machine, a pair of push-pull blocking doors are arranged in the inlet and outlet in a sliding mode, and the welding device further comprises racks arranged at the bottoms of the push-pull blocking doors. According to the welding machine door, the rack, the push-and-pull blocking door, the pedal mechanism, the anti-reversion mechanism and other structures are matched, when the welding machine door is closed, the anti-reversion mechanism can lock the push-and-pull blocking door, and then the push-and-pull blocking door is prevented from being opened at will. In this way, an operator can lean against the push-pull blocking door accidentally, the welding machine door cannot be opened accidentally, and therefore accidents are avoided. Meanwhile, when an operator needs to open the welding machine door, the anti-reversion mechanism can be closed through simple foot treading operation, and finally the welding machine door can be opened. The safety of the welding machine is guaranteed, and the operation convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ball valve welding equipment, in particular to a fully welded ball valve mouth intersection line welding machine. Background Art

[0002] Welded ball valve is a specially designed valve, usually used in high pressure or high temperature environment and in places with strict sealing performance requirements. The intersection line of the welded ball valve port refers to the contact line at the welding interface between the ball valve body and the pipeline. This intersection line usually refers to the intersection point or intersection line of the valve body axis and the pipeline axis at the welding interface. When designing and installing a fully welded ball valve, it is very important to ensure the correct position and angle of this intersection line to ensure the normal operation and sealing performance of the valve. The special welding equipment for the intersection line between the welded ball valve body and the pipeline is the welding machine. The existing welding machine will be equipped with a pair of manual switch safety doors to ensure that the sparks generated by the welding machine during the welding process will not splash onto the operator's body, preventing the operator's skin or clothing from being scalded or burned.

[0003] However, in order to improve the convenience and flexibility of operation, the safety door of the welding machine can usually be opened at will. This may cause the operator to lean on the running welding machine door without paying attention and apply enough pressure to cause the welding machine door to open. The opened welding machine door may cause the operator to lose balance and fall into the running welding machine, thereby causing the operator's skin to be burned by the welding gun or the eyes to be stabbed by the sparks generated by the welding gun. Utility Model Content

[0004] The utility model aims to solve the problems existing in the background technology and proposes a fully welded ball valve port intersection line welding machine.

[0005] The technical solution of the utility model is as follows: a fully welded ball valve mouth intersection line welding machine comprises a welding machine and an inlet and outlet opened on the welding machine, wherein a pair of push-pull baffles are slidably arranged inside the inlet and outlet, and further comprises: a rack arranged at the bottom of the push-pull baffle, an anti-reversal mechanism for blocking the closed push-pull baffle from opening at will is arranged on the welding machine; and a pedal mechanism is installed at the bottom of the welding machine and is used to close the anti-reversal mechanism after being stepped on by the foot.

[0006] Optionally, the anti-reversal mechanism includes a telescopic slot opened on the welding machine and located directly below the rack, a sliding strip plate being slidably connected inside the telescopic slot, a pair of U-shaped brackets being fixedly connected to the welding machine to clamp the sliding strip plate sliding downward, a return spring being fixedly connected inside the sliding strip plate to push the sliding strip plate to return to its original position along the telescopic slot, the return spring being fixedly connected to the sliding strip plate at one end away from the U-shaped bracket, and latching teeth being fixedly connected on both sides of the sliding strip plate to latch into the bottom rack of the sliding-pull door, and the shape of the latching teeth being used to limit the opening of the sliding-pull door but not hinder closing.

[0007] Optionally, the pedal mechanism includes a support block fixedly connected to the lower surface of the welding machine, a rotating pedal for stepping on is rotatably connected to the support block, a pull rope is fixedly connected to the bottom of the sliding strip, and one end of the pull rope away from the sliding strip is fixedly connected to the upper surface of the rotating pedal.

[0008] Optionally, the rotating pedal is provided with a plurality of anti-slip strips which are arranged linearly and are used to increase the friction between the foot and the rotating pedal.

[0009] Optionally, two ends of the bottom of the push-pull stopper are fixedly connected with sliders, and a ball bearing is provided at the bottom of the slider.

[0010] Optionally, the welding machine is provided with a through hole for the pull rope to pass through.

[0011] Optionally, a snap-fit ​​strip is fixedly connected to the opposite end of one of the sliding-pull baffles, and the snap-fit ​​strip is used to prevent sparks from flying out from the gap between the sliding-pull baffles after the sliding-pull baffles are closed.

[0012] Compared with the prior art, the utility model has the following beneficial technical effects:

[0013] The utility model utilizes the coordination of the rack, the push-pull door, the pedal mechanism and the anti-reversal mechanism. When the welding machine door is closed, the anti-reversal mechanism will lock the push-pull door, thereby preventing the push-pull door from being opened at will. In this way, even if the operator accidentally leans on the push-pull door, the welding machine door will not be opened accidentally, thereby avoiding accidents.

[0014] Furthermore, when the operator needs to open the welding machine door, the anti-reversal mechanism can be closed by simply stepping on the foot, and then the welding machine door can be opened. This not only ensures the safety of the welding machine, but also improves the convenience of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A structural schematic diagram of the utility model of a fully welded ball valve port intersection line welding machine is given;

[0016] Figure 2for Figure 1 The enlarged schematic diagram of point A in the middle;

[0017] Figure 3 for Figure 1 Schematic diagram of the split structure;

[0018] Figure 4 for Figure 3 The enlarged schematic diagram of point B in the middle;

[0019] Figure 5 for Figure 1 A schematic diagram of a partial cross-sectional structure;

[0020] Figure 6 for Figure 2 Schematic diagram of the structure of the middle door blocking mechanism.

[0021] Figure numerals: 1. welding machine; 11. punching hole; 12. support block; 13. rotating pedal; 14. U-shaped bracket; 15. reset spring; 16. telescopic slot; 2. inlet and outlet; 3. push-pull door; 31. rack; 32. slider; 33. ball bearing; 4. sliding strip; 41. pull rope; 42. latching tooth; 5. locking strip. DETAILED DESCRIPTION

[0022] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.

[0023] The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0024] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0025] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0026] It should be noted that the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] Example

[0029] like Figure 1-6 As shown, the fully welded ball valve port intersection line welding machine proposed by the utility model includes a welding machine 1 and an inlet and outlet 2 opened on the welding machine 1, a through hole 11 for a pull rope 41 to pass through is opened on the welding machine 1, a pair of push-pull gates 3 are slidably arranged inside the inlet and outlet 2, one of the opposite ends of the push-pull gates 3 is fixedly connected with a snap-fit ​​strip 5, the snap-fit ​​strip 5 is used to prevent sparks from splashing out from the gap between the push-pull gates 3 after the push-pull gates 3 are closed, and a slider 32 is fixedly connected to the two ends of the bottom of the push-pull gate 3, and a ball 33 is arranged at the bottom of the slider 32, and the function of the ball 33 is to make the push-pull gate 3 slide more smoothly in the inlet and outlet 2. It also includes: a rack 31 arranged at the bottom of the push-pull gate 3, and an anti-reversal mechanism for clamping the closed push-pull gate 3 to open at will on the welding machine 1; a stepping plate mechanism, which is installed at the bottom of the welding machine 1 and is used to close the anti-reversal mechanism after being stepped on by the foot.

[0030] Further, the anti-reversal mechanism includes a telescopic slot 16 provided on the welding machine 1 and located directly below the rack 31, a sliding strip 4 is slidably connected inside the telescopic slot 16, a pair of U-shaped brackets 14 for clamping the sliding strip 4 sliding downward are fixedly connected to the welding machine 1, a reset spring 15 for pushing the sliding strip 4 to return to its original position along the telescopic slot 16 is fixedly connected inside the sliding strip 4, and the function of the reset spring 15 is that when the stepping mechanism is not stepped on, the sliding strip 4 drives a pair of latching teeth 42 thereon to be always clamped into the rack 31 at the bottom of the push-pull stopper 3. The end of the reset spring 15 away from the U-shaped bracket 14 is fixedly connected to the sliding strip 4, and the two sides of the sliding strip 4 are fixedly connected with latching teeth 42 for clamping into the rack 31 at the bottom of the push-pull stopper 3, and the shape of the latching teeth 42 is used to limit the opening of the push-pull stopper 3 but not hinder the closing.

[0031] Furthermore, the pedal mechanism includes a support block 12 fixedly connected to the lower surface of the welding machine 1, and a rotating pedal 13 for foot stepping is rotatably connected to the support block 12. The rotating pedal 13 is provided with a plurality of anti-skid strips arranged linearly and used to increase the friction between the foot and the rotating pedal 13. The material of the anti-skid strips is rubber. A pull rope 41 is fixedly connected to the bottom of the sliding strip 4. The material of the pull rope 41 is wear-resistant and strong nylon rope. One end of the pull rope 41 away from the sliding strip 4 is fixedly connected to the upper surface of the rotating pedal 13.

[0032] In this embodiment, when a fully welded ball valve port intersection line welding machine is required, Figure 1 As shown, a pair of push-pull gates 3 in the upper inlet and outlet 2 of the welding machine 1 are manually closed, and then the pair of push-pull gates 3 are closed smoothly through the ball bearings 33 on the pair of sliders 32 at the bottom. At the same time, the sliding strip 4 is pushed by the elastic thrust of the return spring 15 in the pair of U-shaped brackets 14, so that when the push-pull gate 3 is closed, the latch 42 drives the sliding strip 4 to slide downward along the telescopic groove 16. When the pair of push-pull gates 3 are manually opened, the latch 42 on the sliding strip 4 will be stuck in the rack 31, so that the push-pull gate 3 cannot be opened. When the operation of the welding machine 1 is completed, when the pair of push-pull gates 3 need to be opened, it is only necessary to step down one end of the rotating pedal 13, and the other end of the rotating pedal 13 rotates around the support block 12. At the same time, after the support block 12 rotates downward, it will pull the bottom end of the pull rope 41 to move downward, and the top end of the pull rope 41 drives the sliding strip 4 to slide downward along the telescopic groove 16. As a result, the pair of latching teeth 42 on the sliding strip plate 4 cannot be latched into the rack 31 at the bottom of the sliding door 3, and the pair of sliding doors 3 can be easily opened at this time, which is simple and easy to operate.

[0033] The preferred embodiments of the utility model of the above utility model are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A fully welded ball valve port intersection welding machine, comprising a welding machine (1) and an inlet and outlet (2) provided on the welding machine (1), wherein a pair of push-pull doors (3) are slidably provided inside the inlet and outlet (2), characterized in that: Also includes: A rack (31) is arranged at the bottom of the push-pull baffle (3), and an anti-reversal mechanism is provided on the welding machine (1) for blocking the closed push-pull baffle (3) from opening at will; A pedal mechanism is installed at the bottom of the welding machine (1) and is used to close the anti-reversal mechanism by stepping on it.

2. The fully welded ball valve port intersection line welding machine according to claim 1, characterized in that: The anti-reversal mechanism comprises a telescopic groove (16) provided on the welding machine (1) and located directly below the rack (31); a sliding strip (4) is slidably connected inside the telescopic groove (16); a pair of U-shaped brackets (14) for clamping the sliding strip (4) sliding downward are fixedly connected to the welding machine (1); a return spring (15) for pushing the sliding strip (4) to return to its original position along the telescopic groove (16) is fixedly connected inside the sliding strip (4); one end of the return spring (15) away from the U-shaped bracket (14) is fixedly connected to the sliding strip (4); both sides of the sliding strip (4) are fixedly connected with a latching tooth (42) for clamping the rack (31) at the bottom of the push-pull stop door (3); the shape of the latching tooth (42) is used to limit the opening of the push-pull stop door (3) but not hinder the closing.

3. The fully welded ball valve mouth intersection line welding machine according to claim 2, characterized in that: The pedal mechanism comprises a support block (12) fixedly connected to the lower surface of the welding machine (1), a rotating pedal (13) for foot stepping is rotatably connected to the support block (12), a pull rope (41) is fixedly connected to the bottom of the sliding strip (4), and one end of the pull rope (41) away from the sliding strip (4) is fixedly connected to the upper surface of the rotating pedal (13).

4. The fully welded ball valve mouth intersection line welding machine according to claim 3, characterized in that: The rotating pedal (13) is provided with a plurality of anti-slip strips which are arranged in a linear manner and are used to increase the friction between the foot and the rotating pedal (13).

5. The fully welded ball valve port intersection line welding machine according to claim 1, characterized in that: Slide blocks (32) are fixedly connected to both ends of the bottom of the push-pull stopper (3), and a ball bearing (33) is provided at the bottom of the slide block (32).

6. The fully welded ball valve mouth intersection line welding machine according to claim 1, characterized in that: The welding machine (1) is provided with a through hole (11) for the pull rope (41) to pass through.

7. The fully welded ball valve mouth intersection line welding machine according to claim 1, characterized in that: A snap-fit ​​strip (5) is fixedly connected to the opposite end of one of the push-pull baffles (3), and the snap-fit ​​strip (5) is used to prevent sparks from flying out from the gap between the push-pull baffles (3) after the push-pull baffles (3) are closed.

Images