Protection device, control method thereof, control device and readable storage medium

Abstract

The invention provides a protection device, a control method thereof, a control device and a readable storage medium. The protection device is used for the oil pumping unit, the oil pumping unit comprises a base, a brake assembly and a support, the brake assembly and the support are arranged on the base, and the protection device comprises a switch assembly and an adjusting assembly. The switch assembly is arranged on the support and can control on-off of a circuit of the oil pumping unit. The first end of the adjusting assembly is connected with the switch assembly, the second end of the adjusting assembly is connected with the brake assembly, and the brake assembly can drive the second end of the adjusting assembly to move; when the brake assembly controls the pumping unit to brake, the second end of the adjusting assembly is located at the first position, and the switch assembly cuts off a circuit of the pumping unit. And when the brake assembly controls the pumping unit to release braking and the second end of the adjusting assembly is located at the second position, the switch assembly is communicated with the circuit of the pumping unit.

Description

Technical Field

[0001] The present invention relates to the technical field of oil and gas exploitation, and particularly relates to a protection device, a control method thereof, a control device, and a readable storage medium. Background Art

[0002] At present, in the related art, after the pumping unit stops well, in order to avoid safety accidents, the pumping unit is usually braked. However, when the pumping unit is started without releasing the brake, the motor will be subjected to a strong resistance, and such misoperation is likely to burn out the motor, which will further lead to safety accidents. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art or related technologies.

[0004] In view of this, a first aspect of the present invention provides a protection device.

[0005] A second aspect of the present invention provides a control method for a protection device.

[0006] A third aspect of the present invention provides a control device for a protection device.

[0007] A fourth aspect of the present invention provides a readable storage medium.

[0008] Specifically, the present invention is implemented by the following technical solutions:

[0009] According to the first aspect of the present invention, there is provided a protection device for a pumping unit, the pumping unit including a base, a braking assembly, and a bracket, the braking assembly and the bracket being provided on the base. The protection device includes a switch assembly and an adjustment assembly. The switch assembly is provided on the bracket and can control the on / off of the circuit of the pumping unit; a first end of the adjustment assembly is connected to the switch assembly, a second end of the adjustment assembly is connected to the braking assembly, and the braking assembly can drive the second end of the adjustment assembly to move; when the braking assembly controls the pumping unit to brake, the second end of the adjustment assembly is located at a first position, and the switch assembly cuts off the circuit of the pumping unit; when the braking assembly controls the pumping unit to release the brake, and the second end of the adjustment assembly is located at a second position, the switch assembly connects the circuit of the pumping unit.

[0010] In this embodiment, the protection device is used for a pumping unit to facilitate the control of the pumping unit. The pumping unit includes a base, a braking assembly, and a bracket. The braking assembly and the bracket are arranged on the base to achieve the installation and fixation of the braking assembly. The switch assembly is arranged on the bracket and can control the on-off of the circuit of the pumping unit to achieve the installation and fixation of the switch assembly. Furthermore, when the switch assembly disconnects the circuit of the pumping unit, the pumping unit can be powered off and unable to start, thus facilitating the control of the circuit of the pumping unit. The first end of the adjustment assembly is connected to the switch assembly, and the second end of the adjustment assembly is connected to the braking assembly to achieve the installation of the adjustment assembly, such that the adjustment assembly is located between the switch assembly and the braking assembly. The braking assembly can drive the movement of the second end of the adjustment assembly, so that the adjustment assembly can move following the braking assembly, facilitating the driving of the adjustment assembly by the braking assembly. When the braking assembly controls the braking of the pumping unit, the second end of the adjustment assembly is located at the first position, and the switch assembly cuts off the circuit of the pumping unit. That is, when the braking assembly brakes the pumping unit, the pumping unit stops moving. Moreover, when the braking assembly brakes the pumping unit, it can drive the second end of the adjustment assembly to move to the first position, and the pulling force of the movement of the adjustment assembly can act on the switch assembly, so that the switch assembly can cut off the circuit of the pumping unit, preventing the pumping unit from starting up, thus avoiding the pumping unit starting up under the condition of braking. When the braking assembly controls the release of the braking of the pumping unit, when the second end of the adjustment assembly is located at the second position, the switch assembly connects the circuit of the pumping unit. That is, when the braking assembly releases the braking of the pumping unit, when the braking assembly releases the braking of the pumping unit, it can drive the second end of the adjustment assembly to move to the second position, enabling the adjustment assembly to reset, and enabling the switch assembly to connect the circuit of the pumping unit, so that the pumping unit can work by starting up. In this application, by arranging the connection between the adjustment assembly and the braking assembly, the braking assembly can drive the adjustment assembly while moving, facilitating the driving of the switch assembly by the adjustment assembly, so that the switch assembly can cut off or connect the starting circuit of the pumping unit, thereby cutting off the starting circuit of the pumping unit while braking the pumping unit. Even when starting the well under the condition of braking the pumping unit, the starting circuit of the pumping unit cannot start, thus avoiding safety accidents caused by the pumping unit starting under the condition of braking, and improving the safety and reliability in production work.

[0011] In some embodiments of the present invention, the adjustment assembly includes a housing, a first adjustment component, an elastic member, and a second adjustment component. The switch assembly is located inside the housing; the first adjustment component is located outside the housing, and one end of the first adjustment component is connected to the braking assembly; the elastic member is located outside the housing, and one end of the elastic member is connected to the other end of the first adjustment component; one end of the second adjustment component is connected to the other end of the elastic member, and the other end of the second adjustment component passes through the housing and is connected to the switch assembly.

[0012] In this embodiment, the adjustment assembly includes a housing, a first adjustment member, an elastic member, and a second adjustment member. The switch assembly is located inside the housing to install the switch assembly, so that the housing can protect the switch assembly and prevent the switch assembly from being damaged. The first adjustment member is located outside the housing, and one end of the first adjustment member is connected to the braking assembly to install the first adjustment member, so that when the braking assembly brakes or releases the brake on the pumping unit, the braking assembly can drive the first adjustment member to move. The elastic member is located outside the housing, and one end of the elastic member is connected to the other end of the first adjustment member to install the elastic member. One end of the second adjustment member is connected to the other end of the elastic member, and the other end of the second adjustment member passes through the housing and is connected to the switch assembly to install the second adjustment member, so as to facilitate controlling the switch assembly through the second adjustment member. When the braking assembly brakes, the braking assembly drives the first adjustment member, and the first adjustment member can transmit the pulling force to the switch assembly through the elastic member and the second adjustment member, so that the switch assembly can cut off the starting circuit of the pumping unit. When the braking assembly releases the brake, under the action of the elastic member, it is convenient for the first adjustment member to return to its original position, so that the switch assembly can connect the starting circuit of the pumping unit.

[0013] In some embodiments of the present invention, the adjustment assembly further includes a limiting member, the limiting member is disposed at the other end of the second adjustment member, located inside the housing, and along the length direction of the second adjustment member, there is a first preset distance between the end of the limiting member facing the housing and the side of the housing facing the elastic member.

[0014] In this embodiment, the adjustment assembly further includes a limiting member, the limiting member is disposed at the other end of the second adjustment member, located inside the housing, to install and fix the limiting member. Along the length direction of the second adjustment member, there is a first preset distance between the end of the limiting member facing the housing and the side of the housing facing the elastic member. When the braking assembly drives the first adjustment member to move, the first adjustment member drives the second adjustment member to move through the elastic member. When the braking assembly brakes the pumping unit, after the other end of the second adjustment member moves a first preset distance, under the action of the pulling force at the other end of the second adjustment member, the switch assembly can cut off the starting circuit of the pumping unit. At this time, the end of the limiting member facing the housing can abut against the housing, so that the pulling force transmitted from the first adjustment member to the second adjustment member through the elastic member can be transmitted to the housing, thereby avoiding damage to the switch assembly due to excessive pulling force on the second adjustment member.

[0015] In some embodiments of the present invention, the protection device further includes an indicator light and a sounding component, the indicator light is disposed on the housing and is connected to the switch assembly; and / or, the sounding component is disposed on the housing and is connected to the switch assembly.

[0016] In this embodiment, the protection device further includes an indicator light, which is arranged on the housing and connected to the switch assembly to achieve the installation and fixation of the indicator light. The sound - generating component is arranged on the housing and connected to the switch assembly to achieve the installation and fixation of the sound - generating component. By setting the indicator light and the sound - generating component to be connected to the switch assembly, when the device is driven to act by the braking component, the starting cabinet of the pumping unit stops operating and cuts off the power supply of the control circuit of the pumping unit while the action occurs, so that the indicator light can be turned on and flash, and / or the sound - generating device makes a sound, thereby reminding the operator of the pumping unit that the pumping unit has stopped and the brake has been pulled, so as to remind the operator and avoid starting the pumping unit after braking the pumping unit.

[0017] In some embodiments of the present invention, the pumping unit further includes a starting device, and the protection device further includes a cable. One end of the cable is connected to the starting device, and the other end of the cable is connected to the switch assembly.

[0018] In this embodiment, the pumping unit further includes a starting device, and the start - stop of the pumping unit is realized by operating the starting device. The protection device further includes a cable. One end of the cable is connected to the starting device, and the other end of the cable is connected to the switch assembly to achieve the installation of the cable, so that the switch assembly can control the starting device through the cable, so that the switch assembly can cut off or connect the circuit of the starting device through the cable according to the movement of the adjustment component, thereby improving the work efficiency.

[0019] According to the second aspect of the present invention, a control method for a protection device for a pumping unit is provided. The control method of the protection device includes: controlling the first end of the adjustment component to be connected to the switch assembly; controlling the second end of the adjustment component to be connected to the braking component; controlling the braking component to drive the adjustment component to move; and controlling the adjustment component to drive the switch assembly to connect or disconnect the circuit of the pumping unit according to the movement state of the braking component.

[0020] In this embodiment, the control method of the protection device is used for a pumping unit to facilitate the control of the pumping unit. The control method of the protection device includes: connecting the first end of the adjustment component to the switch component, and connecting the second end of the adjustment component to the braking component, so as to arrange the adjustment component between the switch component and the braking component. Controlling the braking component to drive the adjustment component to move, and under the movement of the braking component, the adjustment component can pull the switch component. According to the movement state of the braking component, controlling the adjustment component to drive the switch component to connect or disconnect the circuit of the pumping unit. By setting the adjustment component to be connected to the braking component, the braking component can drive the adjustment component while moving, so as to facilitate the adjustment component to drive the switch component, so that the switch component can cut off or connect the starting circuit of the pumping unit, so that the starting circuit of the pumping unit can be cut off while braking the pumping unit. Even when starting the well while braking the pumping unit, the starting circuit of the pumping unit cannot be started, thus avoiding safety accidents caused by the pumping unit starting while braking, and improving the safety and reliability in production work.

[0021] In some embodiments of the present invention, according to the movement state of the braking component, controlling the switch component to connect or disconnect the circuit of the pumping unit includes: when the braking component controls the pumping unit to brake, if the second end of the adjustment component is at the first position, controlling the switch component to cut off the circuit of the pumping unit; when the braking component controls the pumping unit to release the brake, if the second end of the adjustment component is at the second position, controlling the switch component to connect the circuit of the pumping unit.

[0022] In this embodiment, when the braking component controls the pumping unit to brake, if the second end of the adjustment component is at the first position, controlling the switch component to cut off the circuit of the pumping unit, that is, when the braking component brakes the pumping unit, the pumping unit stops moving. And while the braking component brakes the pumping unit, it can drive the second end of the adjustment component to move to the first position, and the pulling force of the movement of the adjustment component can act on the switch component, so that the switch component can cut off the circuit of the pumping unit, and the pumping unit cannot be started, thus avoiding the pumping unit starting while braking. When the braking component controls the pumping unit to release the brake, if the second end of the adjustment component is at the second position, controlling the switch component to connect the circuit of the pumping unit, that is, when the braking component releases the brake on the pumping unit, while the braking component releases the brake on the pumping unit, it can drive the second end of the adjustment component to move to the second position, so that the adjustment component can be reset, and the switch component can connect the circuit of the pumping unit, so that the pumping unit can work by starting.

[0023] In some embodiments of the present invention, after controlling the switch component to cut off the circuit of the pumping unit, the control method of the protection device further includes: controlling the indicator light and / or the sounding component to be turned on for a first preset time.

[0024] In this embodiment, after the control switch assembly cuts off the circuit of the pumping unit, the control indicator light and the sound - making component are turned on for a first preset time. The braking component drives the device to act. While the device is acting, the starting cabinet of the pumping unit shuts down, and the power supply of the control circuit of the pumping unit is cut off, so that the indicator light can be turned on and flash for the first preset time, and / or the sound - making device makes a sound for the first preset time, thereby reminding the operator of the pumping unit that the pumping unit has shut down and pulled the brake, so as to realize the reminder to the operator and avoid starting the pumping unit after braking the pumping unit.

[0025] According to the third aspect of the present invention, there is provided a control device for a protection device, including a memory and a processor. The memory stores a program or instructions that can run on the processor. When the program or instructions are executed by the processor, the steps of the control method of the protection device as described in the second aspect are implemented. Therefore, the control device of the protection device has all the beneficial effects of the control method of the protection device, which will not be elaborated here.

[0026] According to the fourth aspect of the present invention, there is provided a readable storage medium, on which a program or instructions are stored. It is characterized in that when the program or instructions are executed by the processor, the steps of the control method of the protection device as described in the second aspect are implemented. Therefore, the readable storage medium has all the beneficial effects of the control method of the protection device, which will not be elaborated here.

[0027] The additional aspects and advantages of the present invention will be partly given in the following description, partly will become obvious from the following description, or will be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings here are incorporated into the specification and form a part of this specification, showing embodiments consistent with the present invention, and are used together with the specification to explain the principles of the present invention.

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or related technologies. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0030] Figure 1 A schematic structural diagram of a protection device showing an embodiment of the present invention;

[0031] Figure 2 One of the electrical schematic diagrams of the protection device showing an embodiment of the present invention;

[0032] Figure 3 One of the electrical schematic diagrams of the protection device showing an embodiment of the present invention;

[0033] Figure 4Flowchart showing the control method of the protection device according to an embodiment of the present invention

[0034] Figure 5 Schematic block diagram showing the control device of the protection device according to an embodiment of the present invention

[0035] Wherein Figures 1 to 5 The corresponding relationship between the reference numerals and the component names in

[0036] 100 protection device, 110 switch assembly, 120 adjustment assembly, 121 housing, 122 first adjustment member, 123 elastic member, 124 second adjustment member, 125 limiting member, 126 terminal block, 130 indicator light, 140 sound generating member, 220 braking assembly, 222 brake handle, 224 brake link, 226 brake support, 240 brake hub, 400 control device of the protection device, 410 memory, 420 processor Detailed implementation manners

[0037] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention

[0038] Next, refer to Figures 1 to 5 Describe a protection device 100 and its control method, control device, and readable storage medium according to some embodiments of the present invention

[0039] As Figure 1 shown, the present invention provides a protection device 100 for a pumping unit. The pumping unit includes a base, a braking assembly 220, and a bracket. The braking assembly 220 and the bracket are disposed on the base. The protection device 100 includes a switch assembly 110 and an adjustment assembly 120. The switch assembly 110 is disposed on the bracket and can control the on-off of the circuit of the pumping unit. The first end of the adjustment assembly 120 is connected to the switch assembly 110, and the second end of the adjustment assembly 120 is connected to the braking assembly 220. The braking assembly 220 can drive the second end of the adjustment assembly 120 to move. When the braking assembly 220 controls the pumping unit to brake, the second end of the adjustment assembly 120 is located at the first position, and the switch assembly 110 cuts off the circuit of the pumping unit. When the braking assembly 220 controls the pumping unit to release the brake, and the second end of the adjustment assembly 120 is located at the second position, the switch assembly 110 connects the circuit of the pumping unit

[0040] In this embodiment, the protection device 100 is used for a pumping unit to facilitate the control of the pumping unit. The pumping unit includes a base, a braking component 220, and a bracket. The braking component 220 and the bracket are arranged on the base to achieve the installation and fixation of the braking component 220. The switch component 110 is arranged on the bracket and can control the on-off of the circuit of the pumping unit to achieve the installation and fixation of the switch component 110. Furthermore, when the switch component 110 disconnects the circuit of the pumping unit, the pumping unit can be powered off and unable to start, thereby facilitating the control of the circuit of the pumping unit. The first end of the adjustment component 120 is connected to the switch component 110, and the second end of the adjustment component 120 is connected to the braking component 220 to achieve the installation of the adjustment component 120, such that the adjustment component 120 is located between the switch component 110 and the braking component 220. The braking component 220 can drive the movement of the second end of the adjustment component 120, so that the adjustment component 120 can move following the braking component 220, facilitating the braking component 220 to drive the adjustment component 120. When the braking component 220 controls the braking of the pumping unit, the second end of the adjustment component 120 is located at the first position, and the switch component 110 cuts off the circuit of the pumping unit. That is, when the braking component 220 brakes the pumping unit, the pumping unit stops moving. Moreover, when the braking component 220 brakes the pumping unit, it can drive the second end of the adjustment component 120 to move to the first position. The pulling force of the movement of the adjustment component 120 can act on the switch component 110, so that the switch component 110 can cut off the circuit of the pumping unit, preventing the pumping unit from starting up, thus avoiding the pumping unit starting up while braking. When the braking component 220 controls the release of the braking of the pumping unit, when the second end of the adjustment component 120 is located at the second position, the switch component 110 connects the circuit of the pumping unit. That is, when the braking component 220 releases the braking of the pumping unit, while the braking component 220 releases the braking of the pumping unit, it can drive the second end of the adjustment component 120 to move to the second position, enabling the adjustment component 120 to reset, and enabling the switch component 110 to connect the circuit of the pumping unit, so that the pumping unit can start working by starting up. In this application, by setting the adjustment component 120 to be connected to the braking component 220, the braking component 220 can drive the adjustment component 120 while moving, facilitating the adjustment component 120 to drive the switch component 110, so that the switch component 110 can cut off or connect the starting circuit of the pumping unit. Thus, when braking the pumping unit, the starting circuit of the pumping unit can be cut off. Even when starting the well while braking the pumping unit, the starting circuit of the pumping unit cannot start, thereby avoiding safety accidents caused by the pumping unit starting while braking, and improving the safety and reliability in production work.

[0041] Specifically, pulling the braking assembly 220 brakes the pumping unit, triggering the switch assembly 110 to cut off the power supply of the starting circuit of the pumping unit, realizing the automatic power-off of the starting cabinet of the pumping unit. Even if the operator starts the pumping unit without releasing the brake, the starting cabinet of the pumping unit cannot start, preventing safety accidents caused by the operator starting the pumping unit without following the operation standards and avoiding accidents caused by human factors. The operator can operate alone during work such as replacing the load sensor and adjusting the stroke length to stop the pumping unit at a predetermined position, improving work efficiency. In case of an emergency, the pumping unit can be quickly braked, enhancing safety, reducing the labor intensity of the operator, ensuring the safety of the operator, reducing the operation time, saving manpower, improving the production rate of the oil well, and work efficiency. Thus, it solves the problem that the starting cabinet of the pumping unit can still start when the pumping unit is in the braking state, and also solves the problem that two operators are required to cooperate to stop the well when adjusting the stroke length, replacing the sensor, etc., to stop the pumping unit at a convenient position for operation. It enables the shutdown of the pumping unit to be operated by one person instead of two, avoiding misoperation by the workers, preventing safety accidents caused by starting the well without releasing the brake, reducing labor, improving work efficiency, and enhancing safety in production.

[0042] Specifically, the braking assembly 220 is the braking assembly of the pumping unit. The braking assembly 220 controls the braking of the pumping unit, that is, the braking assembly brakes the pumping unit. The braking assembly 220 controls the release of the braking of the pumping unit, that is, the braking assembly releases the braking state of the pumping unit.

[0043] Specifically, the pumping unit is a beam pumping unit.

[0044] This embodiment provides a protection device 100. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0045] As Figure 1 shown, the adjustment assembly 120 includes a housing 121, a first adjustment member 122, an elastic member 123, and a second adjustment member 124. The switch assembly 110 is located inside the housing 121; the first adjustment member 122 is located outside the housing 121, and one end of the first adjustment member 122 is connected to the braking assembly 220; the elastic member 123 is located outside the housing 121, and one end of the elastic member 123 is connected to the other end of the first adjustment member 122; one end of the second adjustment member 124 is connected to the other end of the elastic member 123, and the other end of the second adjustment member 124 passes through the housing 121 and is connected to the switch assembly 110.

[0046] In this embodiment, the adjustment assembly 120 includes a housing 121, a first adjustment member 122, an elastic member 123, and a second adjustment member 124. The switch assembly 110 is located inside the housing 121 to install the switch assembly 110, so that the housing 121 can protect the switch assembly 110 from being damaged. The first adjustment member 122 is located outside the housing 121. One end of the first adjustment member 122 is connected to the braking assembly 220 to install the first adjustment member 122, so that when the braking assembly 220 brakes or releases the brake on the pumping unit, the braking assembly 220 can drive the first adjustment member 122 to move. The elastic member 123 is located outside the housing 121. One end of the elastic member 123 is connected to the other end of the first adjustment member 122 to install the elastic member 123. One end of the second adjustment member 124 is connected to the other end of the elastic member 123, and the other end of the second adjustment member 124 passes through the housing 121 and is connected to the switch assembly 110 to install the second adjustment member 124, so as to facilitate controlling the switch assembly 110 through the second adjustment member 124. When the braking assembly 220 brakes, the braking assembly 220 drives the first adjustment member 122, and the first adjustment member 122 can transmit the pulling force to the switch assembly 110 through the elastic member 123 and the second adjustment member 124, so that the switch assembly 110 can cut off the starting circuit of the pumping unit. When the braking assembly 220 releases the brake, under the action of the elastic member 123, it is convenient for the first adjustment member 122 to return to its original position, so that the switch assembly 110 can connect the starting circuit of the pumping unit.

[0047] Specifically, the bracket is used to install the speed reducer of the pumping unit. The adjustment assembly 120 can be installed on the bracket through fixing screws, thereby realizing the installation and fixation of the adjustment assembly 120.

[0048] Specifically, the braking assembly 220 includes a brake handle 222, a brake connecting rod 224, and a brake support 226. The brake connecting rod 224 is connected to one end of the first adjustment member 122. The brake handle 222 can drive the brake connecting rod 224 to move. A brake hub 240 is provided on the pumping unit. By pulling the handle, the brake connecting rod 224 can be driven to move, so that the brake connecting rod 224 can brake and release the brake on the pumping unit at the position of the brake hub 240. While the brake connecting rod 224 brakes or releases the brake on the pumping unit, the brake connecting rod 224 can drive the first adjustment member 122 to move, thereby controlling the switch assembly 110, so as to facilitate the switch assembly 110 to cut off or connect the starting circuit of the pumping unit.

[0049] Specifically, a hole is drilled on the brake support 226 using an electric drill, and the first adjustment member 122 is installed and the movement stroke is adjusted at the drilled place with the brake connecting rod 224.

[0050] Specifically, the first adjustment member 122 is an adjustment screw, so that the first adjustment member 122 can adjust the stroke during movement. The adjustment stroke is adjusted according to the stroke of the brake. The brake strokes of different types of pumping units are different. The length of the adjustment screw is 10 cm to 30 cm, which can meet the adjustment of the stroke, so that the sensitivity of the adjustment assembly 120 can be adjusted. By adjusting the size of the stroke of the first adjustment member 122, when the pumping unit brake is in different strokes, the control of the switch assembly 110 can be triggered.

[0051] Specifically, the length of the adjustment screw is 20 cm.

[0052] This embodiment provides a protection device 100. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0053] As Figure 1 shown, the adjustment assembly 120 further includes a limiting member 125. The limiting member 125 is disposed at the other end of the second adjustment member 124 and is located within the housing 121. Along the length direction of the second adjustment member 124, there is a first preset distance between the end of the limiting member 125 facing the housing 121 and the side of the housing 121 facing the elastic member 123.

[0054] In this embodiment, the adjustment assembly 120 further includes a limiting member 125. The limiting member 125 is disposed at the other end of the second adjustment member 124 and is located within the housing 121 to achieve the installation and fixation of the limiting member 125. Along the length direction of the second adjustment member 124, there is a first preset distance between the end of the limiting member 125 facing the housing 121 and the side of the housing 121 facing the elastic member 123. When the braking assembly 220 drives the first adjustment member 122 to move, the first adjustment member 122 drives the second adjustment member 124 to move through the elastic member 123. When the braking assembly 220 brakes the pumping unit, after the second adjustment member 124 moves a first preset distance at one end, under the action of the pulling force at the other end of the second adjustment member 124, the switch assembly 110 can cut off the starting circuit of the pumping unit. At this time, the end of the limiting member 125 facing the housing 121 can abut against the housing 121, so that the pulling force transmitted from the first adjustment member 122 to the second adjustment member 124 through the elastic member 123 can be transmitted to the housing 121, thereby avoiding damage to the switch assembly 110 caused by excessive pulling force of the second adjustment member 124 on the switch assembly 110.

[0055] Specifically, the limiting component 125 is a limiting screw. The limiting screw is sleeved on the second adjusting component 124. The function of the limiting component 125 is that no matter how the braking component 220 moves, as long as the switch component 110 performs the action of cutting off the circuit of the pumping unit, the pulling force transmitted by the braking component 220 acts on the housing 121 through the limiting component 125, preventing the switch component 110 from being damaged due to excessive pulling force of the second adjusting component 124.

[0056] This embodiment provides a protection device 100. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0057] As Figure 1 shown, the protection device 100 further includes an indicator light 130 and a sound - generating component 140. The indicator light 130 is arranged on the housing 121 and is connected to the switch component 110; and / or, the sound - generating component 140 is arranged on the housing 121 and is connected to the switch component 110.

[0058] In this embodiment, the protection device 100 further includes an indicator light 130. The indicator light 130 is arranged on the housing 121 and is connected to the switch component 110 to achieve the installation and fixation of the indicator light 130. The sound - generating component 140 is arranged on the housing 121 and is connected to the switch component 110 to achieve the installation and fixation of the sound - generating component 140. By setting the indicator light 130 and the sound - generating component 140 to be connected to the switch component 110, the device is driven to act by the braking component 220. When the device acts, the starting cabinet of the pumping unit stops, and the power supply of the control circuit of the pumping unit is cut off, so that the indicator light 130 can be turned on and flash, and / or the sound - generating device makes a sound to achieve audible and visual alarms, thereby reminding the operator of the pumping unit that the pumping unit has stopped and pulled the brake, so as to remind the operator and avoid starting the pumping unit after braking the pumping unit.

[0059] Specifically, after the power supply of the control circuit of the pumping unit is cut off, the indicator light 130 can be turned on and flash for a first preset time, and / or the sound - generating device makes a sound for a first preset time.

[0060] Specifically, the first preset time is 20 seconds to 40 seconds.

[0061] Specifically, the first preset time is 30 seconds.

[0062] Specifically, a time relay is arranged in the switch component 110. By setting the time relay, the time relay can control the indicator light 130 to turn on and flash for a first preset time, and / or the sound - generating device to stop alarming after making a sound for a first preset time.

[0063] This embodiment provides a protection device 100. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0064] As Figure 1 shown, the pumping unit further includes a starting device, and the protection device 100 further includes a cable. One end of the cable is connected to the starting device, and the other end of the cable is connected to the switch assembly 110.

[0065] In this embodiment, the pumping unit further includes a starting device, and thus the start and stop of the pumping unit are realized by operating the starting device. The protection device 100 further includes a cable. One end of the cable is connected to the starting device, and the other end of the cable is connected to the switch assembly 110 to realize the installation of the cable, so that the switch assembly 110 can control the starting device through the cable, so that the switch assembly 110 can cut off or connect the circuit of the starting device through the cable according to the movement of the adjustment assembly 120, thereby improving the work efficiency.

[0066] Specifically, the starting device is the starting cabinet of the pumping unit, that is, the pumping unit control cabinet, and the cable is a 4×1.5 square control wire.

[0067] Specifically, the pumping unit is a beam pumping unit, the first adjustment member 122 is an adjustment screw, and the elastic member 123 is a tension spring or a spring.

[0068] Specifically, the operation process of the protection device 100 is as follows: when the beam pumping unit stops, the brake handle 222 of the braking assembly 220 is pulled, and through the brake connecting rod 224 of the braking assembly 220, it acts on the adjustment screw. The adjustment screw pulls the tension spring and acts on the switch assembly 110 through the second adjustment member 124. At the same time, the indicator light 130 and the sound generating member 140 start to alarm. At this time, the control line of the beam pumping unit control starting cabinet has been cut off, realizing power-off shutdown and alarm, and the alarm stops after the time relay of the switch assembly 110 delays for the first preset time. When the beam pumping unit starts, if the brake handle 222 of the braking assembly 220 is not released to start the beam pumping unit control starting cabinet, due to the interlock of the control line between the switch assembly 110 and the starting cabinet, the starting cabinet has no response and the beam pumping unit cannot start, realizing safety and reliability, and at the same time improving the work efficiency.

[0069] Specifically, the adjustment assembly 120 is made of metal.

[0070] Specifically, the adjustment assembly 120 is made of iron.

[0071] Specifically, the protection device 100 further includes a terminal block 126. One end of the terminal block 126 is connected to the switch assembly 110, and the other end of the terminal block 126 is connected to the cable, so that the terminal block 126 can be connected to the pumping unit control cabinet.

[0072] Specifically, the housing 121 can be a discarded junction box. Use an electric drill to fix the electrical components in the switch assembly 110 at a suitable position inside the junction box. The electrical components are connected to the second adjustment member 124 by screws, and a limiting member 125 is installed on the second adjustment member 124. The main function of the limiting member 125 is to protect the electrical components in the switch assembly 110. The second adjustment member 124 is connected to a tension spring, the other end of the tension spring is connected to an adjustment screw, and the other end of the adjustment screw is connected to the brake support 226 of the pumping unit, thereby realizing the assembly of the protection device 100.

[0073] Specifically, as Figure 2 and Figure 3 shown, the working principle of the protection device 100: When the pumping unit pulls the brake, it triggers the switch assembly 110 of the protection device 100, controls the power-on and power-off of the control circuit of the pumping unit starting cabinet, and realizes the shutdown alarm function. Action process: Close the air switch QF1, the main circuit is powered on, close the switch of the control circuit, the control circuit is powered on, the motor protector FS is powered on. At this time, the brake assembly of the pumping unit is in the released position (original position). Press the start button SB1, and the pumping unit starts normally. Press the stop button SB2, and the pumping unit stops running. Pull the brake tightly. When pulling the brake tightly, the travel switch acts. At this time, the normally closed contact of the travel switch opens (the motor protector is powered off), and the normally open contact of the travel switch closes, and the coil of the intermediate relay KA is powered on. The normally closed of KA becomes normally open, and the normally open becomes normally closed. The alarm light is powered on and emits light for alarm. After 30 seconds, through the time relay KT, the sound of the horn is cut off. Only when the brake returns to the original position can the well be started. Specifically, as Figure 2 and Figure 3 shown, closing the air switch QF1, the main circuit, the switch of the control circuit, and the motor protector FS are the internal electrical components of the pumping unit starting cabinet. The specific working principle of the protection device 100: When the pumping unit is in the braking state: When the pumping unit pulls the brake, it triggers the switch assembly 110 of the protection device 100, controls the power-off of the control circuit of the pumping unit starting cabinet, and at the same time closes the intermediate relay KA. The coil of the intermediate relay KA is powered on. The normally closed of KA becomes normally open, and the normally open becomes normally closed. The alarm light is powered on and emits light for alarm. After 30 seconds, through the time relay KT, the sound of the horn is cut off through the voice controller to prevent disturbing the residents. Only when the brake returns to the original position can the well be started. When the brake of the pumping unit is in the released state, that is, when the braking assembly 220 does not brake the pumping unit, the action process: Close the air switch QF1, the main circuit is powered on, close the switch of the control circuit, the control circuit is powered on, the motor protector FS is powered on. At this time, the brake assembly of the pumping unit is in the released position (original position). Press the start button SB1, and the pumping unit starts normally. Press the stop button SB2, and the pumping unit stops running, and the pumping unit starting cabinet works normally.

[0074] In some embodiments of the present invention, a control method for a protection device is provided for a pumping unit, such as Figure 4 shown, the control method of the protection device includes:

[0075] Step 302, controlling the first end of the adjustment component to be connected to the switch component;

[0076] Step 304, controlling the second end of the adjustment component to be connected to the braking component;

[0077] Step 306, controlling the braking component to drive the adjustment component to move;

[0078] Step 308, according to the movement state of the braking component, controlling the adjustment component to drive the switch component to connect or disconnect the circuit of the pumping unit.

[0079] In this embodiment, the control method of the protection device is used for the pumping unit to facilitate the control of the pumping unit. The control method of the protection device includes: controlling the first end of the adjustment component to be connected to the switch component, and controlling the second end of the adjustment component to be connected to the braking component to arrange the adjustment component between the switch component and the braking component. Controlling the braking component to drive the adjustment component to move, and under the movement of the braking component, the adjustment component can pull the switch component. According to the movement state of the braking component, controlling the adjustment component to drive the switch component to connect or disconnect the circuit of the pumping unit. By setting the adjustment component to be connected to the braking component, the braking component can drive the adjustment component while moving, so as to facilitate the adjustment component to drive the switch component, so that the switch component can cut off or connect the starting circuit of the pumping unit, so that the starting circuit of the pumping unit can be cut off while braking the pumping unit. Even when starting the well under the condition of braking the pumping unit, the starting circuit of the pumping unit cannot be started, thus avoiding safety accidents caused by starting the pumping unit under the condition of braking, thereby improving the safety and reliability in production work.

[0080] In some embodiments of the present invention, the control method of the protection device includes: according to the movement state of the braking component, controlling the switch component to connect or disconnect the circuit of the pumping unit, including: when the braking component controls the pumping unit to brake, if the second end of the adjustment component is located at the first position, controlling the switch component to cut off the circuit of the pumping unit; when the braking component controls the pumping unit to release the brake, if the second end of the adjustment component is located at the second position, controlling the switch component to connect the circuit of the pumping unit.

[0081] In this embodiment, when the braking assembly controls the braking of the pumping unit, the second end of the adjustment assembly is located at the first position, and the control switch assembly cuts off the circuit of the pumping unit. That is, when the braking assembly brakes the pumping unit, the pumping unit stops moving. Moreover, while the braking assembly brakes the pumping unit, it can drive the second end of the adjustment assembly to move to the first position, and the pulling force of the movement of the adjustment assembly can act on the switch assembly, so that the switch assembly can cut off the circuit of the pumping unit, making the pumping unit unable to start up, thus avoiding the pumping unit starting up while braking. When the braking assembly controls the pumping unit to release the brake, the second end of the adjustment assembly is located at the second position, and the control switch assembly connects the circuit of the pumping unit. That is, when the braking assembly releases the brake on the pumping unit, while the braking assembly releases the brake on the pumping unit, it can drive the second end of the adjustment assembly to move to the second position, so that the adjustment assembly can be reset, and the switch assembly can connect the circuit of the pumping unit, so that the pumping unit can work by starting up.

[0082] In some embodiments of the present invention, after the control switch assembly cuts off the circuit of the pumping unit, the control method of the protection device further includes: controlling the indicator light and / or the sound - emitting component to be turned on for a first preset time.

[0083] In this embodiment, after the control switch assembly cuts off the circuit of the pumping unit, the indicator light and the sound - emitting component are controlled to be turned on for a first preset time. The braking assembly drives the device to act. While acting, the starting cabinet of the pumping unit stops operating, and the power supply of the control circuit of the pumping unit is cut off, so that the indicator light can be turned on and flash for a first preset time, and / or the sound - emitting device makes a sound for a first preset time, thereby reminding the operator of the pumping unit that the pumping unit has stopped and the brake has been applied, so as to realize the reminder to the operator and avoid starting the pumping unit after braking the pumping unit.

[0084] In some embodiments of the present invention, as Figure 5 shown, a control device 400 of a protection device is provided, including a memory 410 and a processor 420. The memory 410 stores a program or instruction that can run on the processor 420. When the program or instruction is executed by the processor 420, the steps of the control method of the protection device in any of the above - mentioned embodiments are realized. Therefore, the control device 400 of the protection device has all the beneficial effects of the control method of the protection device, and will not be elaborated here.

[0085] In some embodiments of the present invention, a readable storage medium is provided, on which a program or instruction is stored. It is characterized in that when the program or instruction is executed by a processor, the steps of the control method of the protection device in any of the above - mentioned embodiments are realized. Therefore, the readable storage medium has all the beneficial effects of the control method of the protection device, and will not be elaborated here.

[0086] Although this specification contains many specific implementation details, these should not be construed as limiting the scope of any invention or the scope of what is claimed, but rather as mainly describing the features of specific embodiments of a particular invention. Certain features that are described in multiple embodiments in this specification may also be implemented in combination in a single embodiment. On the other hand, the various features described in a single embodiment may also be implemented separately in multiple embodiments or in any suitable sub-combination. Additionally, although features may operate in certain combinations as described above and even be claimed as such initially, one or more features from a claimed combination may in some cases be removed from that combination, and the claimed combination may be directed to a sub-combination or a variation of a sub-combination.

[0087] Similarly, although operations are depicted in the drawings in a particular order, this should not be construed as requiring that those operations be performed in the particular order shown or sequentially, or that all illustrated operations be performed, to achieve the desired result. In some cases, multitasking and parallel processing may be advantageous. Additionally, the separation of the various system modules and components in the above embodiments should not be construed as requiring such separation in all embodiments, and it should be understood that the described program components and systems can generally be integrated together in a single software product or packaged into multiple software products.

[0088] Thus, specific embodiments of the subject matter have been described. Other embodiments are within the scope of the appended claims. In some cases, the acts recited in the claims may be performed in a different order and still achieve the desired result. Additionally, the processes depicted in the drawings are not necessarily in the particular order or sequential order shown to achieve the desired result. In some implementations, multitasking and parallel processing may be advantageous.

[0089] It should be noted that, in this context, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising a..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0090] The above are only specific embodiments of the present invention, enabling those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can 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 these embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features claimed herein.

Claims

1. A protection device (100), characterized in that, for a pumping unit, the pumping unit includes a base, a braking component (220) and a bracket, the braking component (220) and the bracket are arranged on the base, and the protection device (100) includes: a switch component (110), the switch component (110) is arranged on the bracket and can control the on-off of the circuit of the pumping unit; an adjustment component (120), a first end of the adjustment component (120) is connected to the switch component (110), a second end of the adjustment component (120) is connected to the braking component (220), and the braking component (220) can drive the second end of the adjustment component (120) to move; when the braking component (220) controls the pumping unit to brake, the second end of the adjustment component (120) is located at a first position, and the switch component (110) cuts off the circuit of the pumping unit; when the braking component (220) controls the pumping unit to release the brake, and the second end of the adjustment component (120) is located at a second position, the switch component (110) connects the circuit of the pumping unit.

2. The protection device (100) according to claim 1, characterized in that, the adjustment component (120) includes: a housing (121), the switch component (110) is located inside the housing (121); a first adjustment part (122), the first adjustment part (122) is located outside the housing (121), and one end of the first adjustment part (122) is connected to the braking component (220); an elastic member (123), the elastic member (123) is located outside the housing (121), and one end of the elastic member (123) is connected to the other end of the first adjustment part (122); a second adjustment part (124), one end of the second adjustment part (124) is connected to the other end of the elastic member (123), and the other end of the second adjustment part (124) passes through the housing (121) and is connected to the switch component (110).

3. The protection device (100) according to claim 2, characterized in that, the adjustment component (120) further includes: a limiting part (125), the limiting part (125) is arranged at the other end of the second adjustment part (124) and is located inside the housing (121). Along the length direction of the second adjustment part (124), there is a first preset distance between one end of the limiting part (125) facing the housing (121) and one side of the housing (121) facing the elastic member (123).

4. The protection device (100) according to claim 2, characterized in that, further includes: an indicator light (130), the indicator light (130) is arranged on the housing (121) and is connected to the switch component (110); and / or, a sounding component (140), the sounding component (140) is arranged on the housing (121) and is connected to the switch component (110).

5. The protection device (100) according to any one of claims 1 to 3, wherein, the pumping unit further includes a starting device, and the protection device (100) further includes: a cable, one end of the cable is connected to the starting device, and the other end of the cable is connected to the switch assembly (110).

6. A control method for a protection device, wherein, for a pumping unit, the control method of the protection device includes: controlling the first end of the adjustment assembly to be connected to the switch assembly; controlling the second end of the adjustment assembly to be connected to the braking assembly; controlling the braking assembly to drive the adjustment assembly to move; according to the movement state of the braking assembly, controlling the adjustment assembly to drive the switch assembly to connect or disconnect the circuit of the pumping unit.

7. The control method according to claim 6, wherein, the controlling the adjustment assembly to drive the switch assembly to connect or disconnect the circuit of the pumping unit according to the movement state of the braking assembly includes: if the braking assembly controls the pumping unit to brake and the second end of the adjustment assembly is at the first position, controlling the switch assembly to cut off the circuit of the pumping unit; if the braking assembly controls the pumping unit to release the brake and the second end of the adjustment assembly is at the second position, controlling the switch assembly to connect the circuit of the pumping unit.

8. The control method according to claim 7, wherein, after controlling the switch assembly to cut off the circuit of the pumping unit, the control method of the protection device further includes: controlling the indicator light and / or the sounding component to be turned on for a first preset time.

9. A control device (400) for a protection device, wherein, it includes a memory (410) and a processor (420), the memory (410) stores a program or instruction that can run on the processor (420), and when the program or the instruction is executed by the processor (420), the steps of the control method of the protection device according to any one of claims 6 to 8 are implemented.

10. A readable storage medium, on which a program or instruction is stored, wherein, when the program or the instruction is executed by a processor, the steps of the control method of the protection device according to any one of claims 6 to 8 are implemented.

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