Load-adjustable ball plunger

Abstract

The utility model provides a load-adjustable ball plunger, which relates to the technical field of ball plungers and comprises a plunger body, a first cavity is arranged in the plunger body, a ball is arranged at one end of the first cavity, a first spring is connected to one side of the ball, a top block is arranged on one side of the first spring, a threaded rod is arranged on one side of the top block, and a second cavity is arranged on the other side of the threaded rod. And a mounting block is arranged at the other end of the threaded rod. The device solves the problems that a spring in an existing ball plunger cannot be replaced, the spring force cannot be adjusted, and limitation exists.

Description

TECHNICAL FIELD

[0001] The utility model belongs to a ball head plunger technical field, more specifically, it is a load adjustable ball head plunger. BACKGROUND

[0002] Ball head plunger is also called spring plunger or positioning ball / stem, which is a product with spring installed inside the screw thread, and the internal ball and pin are set with pre-pressure for up and down stroke movement. It is suitable for mechanical devices, clamps, molds and automatic machines, etc. As an element that can provide pressure and accurate positioning, the ball head plunger has various fixing methods, such as press-in type and threaded locking type. The thread has one-way slot and internal hexagonal locking methods, and the press-in type shell is made of stainless steel and plastic. The column body has long, short and standard types to adapt to the pressure and fixed body. The spring is divided into light load and heavy load. The ball material is hardened steel or stainless steel, and artificial materials such as nylon, polyformaldehyde resin (polyformaldehyde spring device) or phenolic resin can also be used.

[0003] Based on the above, the present inventors found that the spring inside the ball head plunger cannot be replaced, and the use range of the spring force is fixed, and the size of the spring force cannot be adjusted. In some occasions where the load is uncertain and needs to be adjusted, the traditional ball head plunger cannot meet the use requirements.

[0004] Therefore, in view of the above, the existing structure and defects are improved, and a load adjustable ball head plunger is provided to achieve the purpose of having more practical value. INVENTION CONTENTS

[0005] In order to solve the above technical problems, the utility model provides a load adjustable ball head plunger to solve the problem that the spring inside the ball head plunger cannot be replaced and the spring force cannot be adjusted.

[0006] The purpose and effect of the load adjustable ball head plunger of the utility model are achieved by the following specific technical means:

[0007] A load adjustable ball head plunger, comprising a plunger body, a cavity one is formed in the inside of the plunger body, a ball head is arranged at one end of the cavity one, a spring one is connected to one side of the ball head, a top block is arranged at one side of the spring one, a threaded rod is arranged at one side of the top block, and an installation block is arranged at the other end of the threaded rod.

[0008] Further, limit grooves are formed in the inside of the cavity one, limit blocks are arranged in the limit grooves, and a movable assembly is arranged at one side of the limit blocks.

[0009] Further, the other side of the limit block is connected with the top block.

[0010] Further, the top block and the threaded rod are connected through threads.

[0011] Further, one side of the mounting block is provided with external threads, and the other side of the plunger body is provided with internal threads, and the internal threads and the external threads are matched.

[0012] Further, the threaded rod and the mounting block are movably connected, and the other end of the threaded rod is provided with a cross slot.

[0013] Further, the movable assembly comprises cavities two formed on two sides of the top block, and the cavities two are internally provided with springs two, one side of the spring two is provided with a limiting plate, one side of the limiting plate is connected with a limiting block, the limiting block is trapezoidal, and the end of the limiting slot is trapezoidal.

[0014] Compared with the prior art, the load-adjustable ball head plunger has the following beneficial effects:

[0015] 1. Through the cooperation between the spring one, the top block, the threaded rod, the limiting slot, the limiting block and the cross slot, the cross rod matched with the cross slot is used, the cross rod is inserted, then the threaded rod is rotated, the top block and the threaded rod are connected through threads, so that the threaded rod is rotated to drive the top block to move along the limiting slot, and the compression of the spring one is realized, the compression amount of the spring one is changed, the effect of adjusting the spring force is realized, and the operation is convenient and fast.

[0016] 2. Through the cooperation between the mounting block, the external threads, the internal threads, the limiting plate and the spring two, the top block is mounted on the threaded rod, in use, the top block is mounted to the inside of the plunger body, the limiting block is retracted in the cavity two, the top block is mounted to the inside, then under the action of the spring two, the limiting block is clamped into the limiting slot, then the internal threads of the mounting block and the external threads are aligned, and the knob is mounted, conversely, when the trapezoidal surface of the limiting block is moved to the trapezoidal surface of the limiting slot, the top block can be dismounted, then the spring one can be taken out, the effect of quickly mounting and dismounting the spring one is realized, and the operation is convenient and fast. DRAWINGS

[0017] Figure 1 is a three-dimensional schematic view of the load-adjustable ball head plunger.

[0018] Figure 2 is a back view schematic view of the load-adjustable ball head plunger.

[0019] Figure 3 is an unfolded schematic view of the load-adjustable ball head plunger.

[0020] Figure 4 is a cross-sectional schematic view of the load-adjustable ball head plunger.

[0021] Figure 5 The utility model relates to a load adjustable ball head plunger Figure 4 The A point amplification schematic drawing of.

[0022] In the figure, the correspondence of component name and drawing number is:

[0023] 1, plunger body; 2, ball head; 3, spring one; 4, top block; 5, threaded rod; 6, mounting block; 7, limiting groove; 8, limiting block; 9, external thread; 10, internal thread; 11, cross groove; 12, spring two; 13, limiting plate. Specific embodiments

[0024] The embodiments of the utility model are further described in detail below in combination with the drawings and examples. The following examples are used to illustrate the utility model, but cannot be used to limit the scope of the utility model.

[0025] In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more than two; the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model. The indicated device or element must have a particular orientation, a particular orientation and operation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0026] In the description of the utility model, it should be noted that, unless otherwise specified and limited, the terms "connected", "connected" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0027] Embodiment:

[0028] As shown in the accompanying Figure 1 to the accompanying Figure 5 As shown:

[0029] The utility model provides a load adjustable ball head plunger, including plunger body 1, the inside of plunger body 1 is provided with chamber one, one end of chamber one is equipped with ball head 2, one side of ball head 2 is connected with spring one 3, one side of spring one 3 is equipped with top block 4, one side of top block 4 is equipped with threaded rod 5, the other end of threaded rod 5 is equipped with mounting block 6.

[0030] Wherein, the inside of the chamber one is provided with a limiting slot 7, the limiting slot 7 is provided with a limiting block 8, one side of the limiting block 8 is provided with a movable assembly.

[0031] Wherein, the other side of the limiting block 8 is connected with the top block 4.

[0032] Wherein, the top block 4 and the threaded rod 5 are connected through threads.

[0033] Wherein, one side of the mounting block 6 is provided with an external thread 9, the other side of the plunger body 1 is provided with an internal thread 10, the internal thread 10 and the external thread 9 are matched, through the cooperation between the spring one 3, the top block 4, the threaded rod 5, the limiting slot 7, the limiting block 8 and the cross slot 11, the cross rod matched with the cross slot 11 is inserted, then the threaded rod 5 is rotated, the top block 4 and the threaded rod 5 are connected through threads, so the threaded rod 5 is rotated to drive the top block 4 to move along the limiting slot 7, thereby realizing the compression of the spring one 3, changing the compression amount of the spring one 3, realizing the effect of adjusting the spring force, which is convenient and fast.

[0034] Wherein, the threaded rod 5 and the mounting block 6 are movably connected, the other end of the threaded rod 5 is provided with a cross slot 11.

[0035] Wherein, the movable assembly includes a chamber two provided on both sides of the top block 4, the chamber two is provided with a spring two 12, one side of the spring two 12 is provided with a limiting plate 13, one side of the limiting plate 13 is connected with the limiting block 8, the limiting block 8 is trapezoidal, and the end of the limiting slot 7 is trapezoidal, through the cooperation between the mounting block 6, the external thread 9, the internal thread 10, the limiting plate 13 and the spring two 12, the top block 4 is installed on the threaded rod 5, in use, the top block 4 is installed inside the plunger body 1, the limiting block 8 is retracted in the chamber two, the top block 4 is installed inside, then under the action of the spring two 12, the limiting block 8 is clamped into the limiting slot 7, then the internal thread 10 of the mounting block 6 and the external thread 9 are aligned, and the knob is installed, conversely, when the trapezoidal surface of the limiting block 8 moves to the trapezoidal surface of the limiting slot 7, the top block 4 can be removed, then the spring one 3 can be taken out, realizing the effect of quickly installing and dismounting the spring one 3, which is convenient and fast.

[0036] The specific use mode and effect of the embodiment are as follows:

[0037] First check the integrity of the device, and then put the device into practical use, through the cooperation between spring 3, top block 4, threaded rod 5, limiting groove 7, limiting block 8 and cross slot 11, use the cross rod matched with cross slot 11, insert the cross rod, then rotate threaded rod 5, drive threaded rod 5 to rotate, top block 4 and threaded rod 5 are connected through threads, so threaded rod 5 rotates and drives top block 4 to move along limiting groove 7, thereby realizing the compression of spring 3, changing the compression amount of spring 3, realizing the effect of adjusting spring force, convenient and fast, then through the cooperation between mounting block 6, outer thread 9, inner thread 10, limiting plate 13 and spring 12, top block 4 is installed on threaded rod 5, when using, install top block 4 to the inside of plunger body 1, limiting block 8 is retracted in cavity two, install top block 4 to the inside, then under the action of spring 12, limiting block 8 is clamped into limiting groove 7, then align inner thread 10 and outer thread 9 of mounting block 6, and screw installation can be achieved, conversely, when the trapezoidal surface of limiting block 8 moves to the trapezoidal surface of limiting groove 7, top block 4 can be removed, then spring 3 can be taken out, realizing the effect of quickly installing and dismounting spring 3, convenient and fast.

[0038] Embodiments of the present application are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the application to the forms disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. Embodiments were chosen and described in order to best explain the principles of the application and its practical application, and to enable others skilled in the art to understand the application for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. A load-adjustable ball-head plunger, comprising a plunger body (1), characterized in that: The plunger body (1) has a chamber, one end of which is provided with a ball head (2), one side of which is connected to a spring (3), one side of which is provided with a top block (4), one side of which is provided with a threaded rod (5), and the other end of which is provided with a mounting block (6).

2. The load-adjustable ball plunger as described in claim 1, characterized in that: The inner sides of the first chamber are provided with limiting grooves (7), and limiting blocks (8) are provided in the limiting grooves (7). A movable component is provided on one side of the limiting block (8).

3. The load-adjustable ball plunger as described in claim 2, characterized in that: The other side of the limiting block (8) is connected to the top block (4).

4. The load-adjustable ball plunger as described in claim 3, characterized in that: The top block (4) and the threaded rod (5) are connected by threads.

5. The load-adjustable ball plunger as described in claim 4, characterized in that: The mounting block (6) has an external thread (9) on one side and an internal thread (10) on the other side of the plunger body (1), and the internal thread (10) and the external thread (9) are matched.

6. The load-adjustable ball plunger as described in claim 5, characterized in that: The threaded rod (5) and the mounting block (6) are movably connected, and the other end of the threaded rod (5) is provided with a cross groove (11).

7. The load-adjustable ball plunger as described in claim 6, characterized in that: The active component includes two chambers on both sides of the top block (4), and a second spring (12) is provided in the second chamber. A limiting plate (13) is provided on one side of the second spring (12). One side of the limiting plate (13) is connected to a limiting block (8). The limiting block (8) is trapezoidal, and the end of the limiting groove (7) is trapezoidal.

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