A push-pull device

Abstract

The utility model relates to a kind of push-pull device, belong to auxiliary tool technical field, the push-pull device is fixed in plunger end portion by connecting piece with force amplification pole, fixed variable fulcrum frame is fixed on the inner thread of pump head pressure cap, force amplification pole gap passes through fixed variable fulcrum frame, one end of crowbar is inserted into perforation and with the through hole on fixed variable fulcrum frame as lever fulcrum to exert thrust, to push force amplification pole, further or pull or push plunger translation connected with it, simple structure, convenient operation, rely on manpower and lever labor-saving operation, without external power, not limited by operating environment condition.

Description

Technical Field

[0001] This utility model belongs to the field of auxiliary tooling technology, and specifically relates to a push-pull device. Background Technology

[0002] A plunger pump transfers energy directly to the fluid in the form of static pressure through the reciprocating motion of a plunger. The plunger's reciprocating motion within the cylinder changes the sealed volume, thus achieving oil suction and pressure. Plunger pumps are classified into axial plunger pumps and radial plunger pumps. During normal operation, the plunger's reciprocating movement is usually automatically completed by the pump's drive mechanism without manual intervention. However, in specific scenarios, such as ensuring equipment safety, assisting in maintenance, or verifying functions, especially in case of equipment failure, manual plunger movement is necessary. Existing plunger movement fixtures mostly utilize external power (such as electricity or hydraulic power) to drive the plunger movement, which places high demands on the equipment and results in a relatively complex structure.

[0003] Therefore, there is an urgent need for a push-pull device that is simple in structure, easy to use, and not limited by objective conditions. Utility Model Content

[0004] This utility model provides a push-pull device to solve the technical problems of existing plunger moving tooling having a complex structure and being inconvenient to use due to limitations of the driving source.

[0005] This utility model is achieved through the following technical solution: a push-pull device, including a force-enhancing climbing rod, a fixed variable fulcrum frame, and a pry bar. One end of the force-enhancing climbing rod is provided with a connector for detachable connection with a plunger. The force-enhancing climbing rod is provided with multiple through holes. The fixed variable fulcrum frame is used for detachable connection with the inner thread of the pump head cap. The fixed variable fulcrum frame is fitted onto the force-enhancing climbing rod with a gap. The fixed variable fulcrum frame is provided with a through hole that acts as a fulcrum. One end of the pry bar passes through the through hole and is inserted into any one of the through holes.

[0006] To better realize this utility model, the above structure is further optimized. The force-enhancing climbing rod is a strip plate, and the multiple perforations are evenly arranged along the length direction of the strip plate.

[0007] To better realize this utility model, the above structure is further optimized, and the diameter of the through hole is 1.5 to 2 times the diameter of the pry bar.

[0008] To better realize this utility model, the above structure is further optimized. The connecting member is a stud, which is integrally connected to one end of the strip plate.

[0009] To better realize this utility model, further optimizations are made to the above structure. The fixed variable fulcrum frame includes a fixed plate and a support plate. The fixed plate has a central hole and an external thread on its outer circumference for detachable connection with the inner thread of the pump head cap. The two support plates are fixed parallel to each other and spaced apart on one side of the fixed plate. The central hole is located between the two support plates. The through hole is provided on the support plate. The booster climbing rod moves through the central hole. One end of the pry bar passes through the through hole of one of the support plates and is inserted into any one of the through holes of the booster climbing rod.

[0010] To better realize this utility model, further optimizations are made to the above structure. One end of the pry bar is provided with a conical head, the diameter of the large-diameter end of the conical head is the same as the diameter of the pry bar, and the diameter of the pry bar is larger than the diameter of the through hole.

[0011] To better realize this utility model, the above structure is further optimized by including a reinforcing rib, which is connected between the ends of the two support plates opposite to the fixed plate.

[0012] To better realize this utility model, the above structure is further optimized. The number of reinforcing ribs is two, the two reinforcing ribs are parallel and spaced apart, and the force-enhancing climbing rod passes between the two reinforcing ribs.

[0013] Compared with the prior art, this utility model has the following advantages: The push-pull device provided by this utility model includes a force-enhancing climbing rod, a fixed variable fulcrum frame, and a pry bar. One end of the force-enhancing climbing rod is provided with a connector for detachable connection with the plunger. The force-enhancing climbing rod has multiple through holes. The fixed variable fulcrum frame is detachably connected to the inner thread of the pump head cap. The fixed variable fulcrum frame is gap-fitted onto the force-enhancing climbing rod and has through holes that act as fulcrums. One end of the pry bar passes through the through holes and is inserted into any one of the through holes. With this structure, the force-enhancing climbing rod is fixed to the end of the plunger through the connector, the fixed variable fulcrum frame is fixed to the inner thread of the pump head cap, the force-enhancing climbing rod gap-passes through the fixed variable fulcrum frame, and one end of the pry bar is inserted into the through hole and uses the through hole on the fixed variable fulcrum frame as a lever fulcrum to apply a pushing force, thereby pushing the force-enhancing climbing rod horizontally, and then pulling or pushing the plunger connected to it to move horizontally. The structure is simple, the operation is convenient, and it relies on human power and levers for labor-saving operation. It does not require external power and is not limited by the operating environment, making this utility model more practical. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a perspective view of the push-pull device in this utility model; Figure 2 This is a front view of the push-pull device in this utility model.

[0016] In the picture: 1-Force-enhancing climbing rod; 2-Pry bar; 3-Connector; 4-Through hole; 5-Through hole; 6-Fixing plate; 7-Support plate; 8-Center hole; 9-External thread; 10-Conical head; 11-Reinforcing rib. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0018] In the description of this utility model, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0020] Example 1: In this embodiment, a push-pull device, such as Figure 1 and Figure 2 As shown, the device includes a force-boosting climbing rod 1, a fixed variable fulcrum bracket, and a pry bar 2. Specifically, one end of the force-boosting climbing rod 1 is provided with a connector 3, which is used for detachable connection with the screw hole at the end of the plunger, thereby fixing the force-boosting climbing rod 1 to the end of the plunger. The force-boosting climbing rod 1 has multiple through holes 4, which can cooperate with the pry bar 2. The fixed variable fulcrum bracket is used for detachable connection with the inner thread of the pump head cap, thereby fixing the fixed variable fulcrum bracket to the inner thread of the pump head cap. The inner thread of the pump head cap is the thread used on the pump head. Remove the pump head cap from the internal threaded hole to install the fixed variable fulcrum bracket. The fixed variable fulcrum bracket is fitted onto the force-enhancing climbing rod 1 with a gap, so that the force-enhancing climbing rod 1 can move under the action of external force. The fixed variable fulcrum bracket is provided with a through hole 5 that acts as a fulcrum. The fixed variable fulcrum bracket is used to provide force support for the pry bar 2. One end of the pry bar 2 passes through the through hole 5 and is inserted into any one of the through holes 4, so that the pry bar 2 and the fixed variable fulcrum bracket form a lever structure.

[0021] With this structure, the force-boosting climbing rod 1 is fixed to the end of the plunger via the connecting piece 3. The fixed variable fulcrum frame is fixed to the inner thread of the pump head cap. The force-boosting climbing rod 1 passes through the fixed variable fulcrum frame. One end of the pry bar 2 is inserted into the through hole 4 and uses the through hole 5 on the fixed variable fulcrum frame as a lever fulcrum to apply a thrust, thereby pushing the force-boosting climbing rod 1 horizontally, and then pulling or pushing the plunger connected to it to move horizontally. The structure is simple and easy to operate. It relies on human power and levers for labor-saving operation, requires no external power, and is not limited by the operating environment conditions, making the utility model more practical.

[0022] In this embodiment, as Figure 1 As shown, the aforementioned force-enhancing climbing rod 1 is a strip plate, and multiple perforations 4 are evenly arranged along the length of the strip plate. During operation, one end of the aforementioned pry bar 2 is inserted into one of the aforementioned perforations 4, and force is applied to the other end of the aforementioned pry bar 2 using the lever principle, thereby pushing the strip plate to move a small distance. Then, one end of the aforementioned pry bar 2 is reinserted into the next aforementioned perforation 4, and the operation is repeated to achieve the purpose of moving the plunger.

[0023] It is worth noting that the diameter of the through hole 5 is 1.5 to 2 times the diameter of the pry bar 2. With this configuration, when the pry bar 2 is used to pry the strip plate, the pry bar 2 can rotate at a larger angle, so that the strip plate can be pushed a longer distance with one force, thereby improving the efficiency of moving the plunger.

[0024] In this embodiment, as Figure 1As shown, the connecting part 3 is a stud, which is integrally connected to one end of the strip plate. The stud is screwed into the screw hole at the end of the plunger, so that the force-enhancing climbing rod 1 is connected to the plunger and is easy to disassemble. When the pry bar 2 pries the force-enhancing climbing rod 1, it can drive the plunger to move horizontally together with the force-enhancing climbing rod 1.

[0025] As one specific implementation method of this embodiment, such as Figure 1 and Figure 2 As shown, the aforementioned fixed variable fulcrum frame includes a fixed disk 6 and a support plate 7. The fixed disk 6 is a disc structure with a central hole 8. The booster rod 1 can pass through the central hole 8. The outer circumference of the fixed disk 6 is provided with an external thread 9 for detachable connection with the inner thread of the pump head cap, thereby fixing the fixed disk 6 to the inner thread of the pump head cap. Two support plates 7 are welded and fixed to one side of the fixed disk 6 in parallel and at intervals. The central hole 8 is located between the two support plates 7. The through hole 5 is provided on the support plate 7. The booster rod 1 moves through the central hole 8, so that the booster rod 1 is located between the two support plates 7. One end of the pry bar 2 passes through the through hole 5 of one of the support plates 7 and is inserted into any one of the through holes 4 of the booster rod 1. The contact point between the pry bar 2 and the hole wall of the through hole 5 serves as a lever fulcrum, thereby prying the booster rod 1 to move and driving the plunger to move.

[0026] As an optimization, such as Figure 2 As shown, one end of the pry bar 2 is provided with a conical head 10. The diameter of the large-diameter end of the conical head 10 is the same as the diameter of the pry bar 2. The diameter of the pry bar 2 is larger than the diameter of the through hole 4. This arrangement allows the conical surface of the conical head 10 to abut against the wall of the through hole 4, thus limiting the pry bar 2 and preventing it from completely passing through the through hole 4. This facilitates the application of force. The conical surface of the conical head 10 can be provided with friction-enhancing protrusions to prevent slippage.

[0027] In this embodiment, as Figure 1 and Figure 2 As shown, it also includes a reinforcing rib 11, which is connected between the ends of the two support plates 7 that are away from the fixed plate 6. The reinforcing rib 11 reinforces the two support plates 7. As an optimization, there are two reinforcing ribs 11, which are parallel and spaced apart. The force-enhancing climbing rod 1 passes between the two reinforcing ribs 11.

[0028] When using the aforementioned push-pull device, firstly, screw the aforementioned connector 3 onto the end of the plunger to fix the aforementioned force-boosting climbing rod 1 onto the plunger. Then, screw the aforementioned fixing plate 6 onto the inner thread of the pump head cap to fix the aforementioned fixing plate 6 onto the inner thread of the pump head cap. At this time, the aforementioned force-boosting climbing rod 1 passes through the central hole 8 of the aforementioned fixing plate 6, ensuring that the aforementioned force-boosting climbing rod 1 remains parallel to the aforementioned support plate 7. At this time, the aforementioned through hole 4 faces the aforementioned through hole 5. Use the aforementioned pry bar 2 to pass through one of the aforementioned through holes 5 on the aforementioned support plate 7, so that the aforementioned conical head 10 at its end is inserted into the... In the corresponding position of the perforation 4, the contact point between the pry bar 2 and the wall of the through hole 5 is used as the fulcrum. Press the other end of the pry bar 2, so that the conical head 10 at the end of the pry bar 2 pushes the force-enhancing climbing rod 1 to move horizontally. Then, after the conical head 10 is withdrawn, it is reinserted into the next perforation 4 corresponding to the position of the through hole 5. This cycle is repeated to move the plunger. After the operation is completed, the force-enhancing climbing rod 1 and the fixed plate 6 are rotated in the opposite direction to easily loosen the stud and the external thread 9, thereby removing the push-pull device.

[0029] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A push-pull device, characterized in that: The device includes a booster climbing rod (1), a fixed variable fulcrum frame, and a pry bar (2). One end of the booster climbing rod (1) is provided with a connector (3), which is used to detachably connect with a plunger. The booster climbing rod (1) is provided with multiple through holes (4). The fixed variable fulcrum frame is used to detachably connect with the inner thread of the pump head cap. The fixed variable fulcrum frame is fitted onto the booster climbing rod (1) with a gap. The fixed variable fulcrum frame is provided with a through hole (5) that serves as a fulcrum. One end of the pry bar (2) passes through the through hole (5) and is inserted into any one of the through holes (4).

2. The push-pull device according to claim 1, characterized in that: The booster climbing rod (1) is a strip plate, and multiple perforations (4) are evenly arranged along the length direction of the strip plate.

3. A push-pull device according to claim 2, characterized in that: The diameter of the through hole (5) is 1.5 to 2 times the diameter of the pry bar (2).

4. A push-pull device according to claim 2, characterized in that: The connector (3) is a stud, which is integrally connected to one end of the strip plate.

5. A push-pull device according to claim 1, characterized in that: The fixed variable fulcrum frame includes a fixed plate (6) and a support plate (7). The fixed plate (6) has a central hole (8). The outer circumference of the fixed plate (6) is provided with an external thread (9) for detachable connection with the inner thread of the pump head cap. The two support plates (7) are fixed parallel to each other and spaced apart on one side of the fixed plate (6). The central hole (8) is located between the two support plates (7). The through hole (5) is provided on the support plate (7). The booster climbing rod (1) moves through the central hole (8). One end of the pry bar (2) passes through the through hole (5) of one of the support plates (7) and is inserted into any one of the through holes (4) of the booster climbing rod (1).

6. A push-pull device according to claim 5, characterized in that: One end of the pry bar (2) is provided with a conical head (10), the diameter of the large diameter end of the conical head (10) is the same as the diameter of the pry bar (2), and the diameter of the pry bar (2) is greater than the diameter of the through hole (4).

7. A push-pull device according to claim 5, characterized in that: It also includes a reinforcing rib (11) connected between the two support plates (7) at one end away from the fixed plate (6).

8. A push-pull device according to claim 7, characterized in that: The number of the reinforcing ribs (11) is two, the two reinforcing ribs (11) are parallel and spaced apart, and the force-enhancing climbing pole (1) passes between the two reinforcing ribs (11).

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