Ball plunger for limiting

Abstract

The utility model discloses a ball plunger for limiting, which comprises a ball plunger main body assembly, and the ball plunger main body assembly comprises a plunger pipe, a spring arranged in the plunger pipe, and a ball end arranged at the front end of the spring; the ball head plunger assembly comprises a plunger head, a first internal thread, a first external thread, an annular notch and a spring limiting frame, wherein the plunger head is sleeved with the ball body end, the first internal thread is formed in the inner side of the plunger head, the first external thread is formed in the outer side of the plunger pipe, the annular notch is formed in the top end of the plunger pipe, and the spring limiting frame is arranged on the side face of the plunger pipe. According to the utility model, the ball head plunger main body assembly and the ball head plunger assembly are matched with each other to form a split type assembly structure, so that any parts of the ball head plunger can be mutually combined for use, and therefore, when the elasticity of a spring cannot meet the use requirement, a ball head is abraded or a plunger pipe deforms, the parts can be independently replaced without being integrally replaced, and the cost is reduced. And the use cost is reduced, and the replacement application can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of ball head plungers, in particular to a ball head plunger for limiting position. Background Art

[0002] The ball plunger, also called a positioning bead or spring plunger, is a load device composed of a shell, a spring, a ball or a column. According to the authorization announcement number: CN 208719099 U, a ball plunger disclosed records that "the last circle of the spring tail is enlarged to form a spring limit end, and the spring limit end is clamped in the limit groove. The spring tail is tightly combined with the plunger tail, and the spring will not fall out. The plunger head limits the ball head so that the ball head will not separate from the plunger tube." In the actual application process, the above technical solution can ensure that the spring and the ball head do not fall out. However, with such an integrated structural design, once the ball head is worn or the elastic force of the spring cannot meet the use, the entire ball plunger needs to be replaced, which will increase the use cost of the ball plunger. Utility Model Content

[0003] Therefore, the purpose of the utility model is to provide a ball plunger for limiting a position, by cooperating with the ball plunger main body component and the ball plunger component, a split assembly structure is formed, so that any components of the ball plunger can be used in combination with each other, so that when the spring force cannot meet the use, the ball head is worn or the plunger tube is deformed, they can be replaced independently without the need for overall replacement, thereby reducing the cost of use, and can also be replaced and used immediately.

[0004] In order to solve the above technical problems, according to one aspect of the utility model, the utility model provides the following technical solution: a ball plunger for limiting, comprising:

[0005] A ball plunger main body assembly, the ball plunger main body assembly comprising a plunger tube, a spring arranged in the plunger tube, and a ball end arranged at the front end of the spring;

[0006] A ball head plunger assembly, the ball head plunger assembly includes a plunger head that fits with the ball end, a first internal thread opened on the inner side of the plunger head, a first external thread opened on the outer side of the plunger tube, an annular notch opened on the top end of the plunger tube, and a spring limit frame arranged on the side of the plunger tube.

[0007] As a preferred solution of the ball plunger for limiting the position described in the utility model, the ball plunger assembly further includes a second internal thread provided in the annular notch and an external thread ring fixed to the bottom surface of the spring limiting frame.

[0008] As a preferred solution of the ball plunger for limiting the position described in the utility model, the first internal thread and the first external thread are connected to each other, and the plunger head limits the ball end.

[0009] As a preferred solution of the ball plunger for limiting the position described in the utility model, the external thread ring and the second internal thread are connected to each other, and the top end of the spring and the inner bottom surface of the spring limiting frame are in contact with each other.

[0010] As a preferred solution of the ball plunger for limiting the position of the utility model, it also includes an arc-shaped sleeve plate, and the arc-shaped sleeve plate is fixed to the end of the spring;

[0011] Wherein, the arc-shaped sleeve plate is driven by the spring to move up and down along the inner cavity of the plunger tube.

[0012] As a preferred solution of the ball plunger for limiting the position described in the utility model, the arc-shaped sleeve plate and the arc surface of the ball end are in contact with each other.

[0013] Compared with the prior art, the advantages of the utility model are:

[0014] 1. The utility model forms a split assembly structure by the mutual cooperation of the ball plunger main assembly and the ball plunger assembly, so that any parts of the ball plunger can be used in combination with each other. In this way, when the spring force cannot meet the use, the ball head is worn or the plunger tube is deformed, they can be replaced independently without replacing the whole, thus reducing the use cost and can be replaced immediately.

[0015] Second, based on the first beneficial effect, the arc-shaped sleeve plate is directly in contact with the ball end, so that the force on the ball end is even, avoiding the wear of the ball end due to uneven force.

[0016] During specific use, the user places the spring and the ball end in the plunger tube, and then rotates the plunger head to connect the first internal thread with the first external thread, and rotates the spring limiting frame to connect the external thread ring with the second internal thread. At this time, the assembly is completed. The spring limiting frame limits the spring to prevent the spring from falling off, and the plunger head limits the ball end to prevent the ball end from separating from the plunger tube. In this way, when the ball end is squeezed by the outside world, the ball end moves inward and compresses the spring. In this way, no matter the plunger tube, spring, ball end, plunger head or spring limiting frame are worn or damaged, they can be replaced separately and can be used after assembly without overall replacement, thereby reducing the cost of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the implementation of the utility model, the utility model will be described in detail below in combination with the drawings and detailed implementation. Obviously, the drawings described below are only some implementations of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0018] Figure 1 This is a first-view structural diagram of the utility model;

[0019] Figure 2 This is a structural diagram of the utility model from a second viewing angle;

[0020] Figure 3 It is a structural diagram of the arc sleeve plate of the utility model.

[0021] In the figure: 11, plunger tube; 12, spring; 13, ball end; 21, plunger head; 22, first internal thread; 23, first external thread; 24, annular notch; 25, second internal thread; 26, spring limit frame; 27, external thread ring; 30, arc sleeve. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific implementation methods disclosed below.

[0024] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the implementation of the present invention, for the sake of convenience, the cross-sectional diagram showing the device structure will not be partially enlarged according to the general scale, and the schematic diagram is only an example, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0025] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0026] The utility model provides a ball plunger for limiting a position, which forms a split assembly structure by cooperating with the provided ball plunger main body component and the ball plunger component, so that any components of the ball plunger can be used in combination with each other, so that when the spring elastic force cannot meet the use requirements, the ball head is worn or the plunger tube is deformed, they can be replaced independently without replacing the entire unit, thereby reducing the use cost and allowing immediate replacement and application. Example 1

[0027] Figure 1 , Figure 2 The figure shows the overall structure of a ball plunger for limiting the position of the utility model. Figure 1 , Figure 2 The main structure of this embodiment includes: a ball plunger main body component and a ball plunger component.

[0028] The ball plunger main body assembly is used in conjunction with the ball plunger assembly. Specifically, the ball plunger main body assembly includes a plunger tube 11, a spring 12 disposed in the plunger tube 11, and a ball end 13 disposed at the front end of the spring 12;

[0029] During specific use, the ball plunger assembly is installed and used based on the plunger tube 11, and is used to limit the spring 12 and the ball end 13 respectively.

[0030] The ball plunger assembly is used to form a split structural design, which is convenient for wear and replacement. Specifically, the ball plunger assembly includes a plunger head 21 that is sleeved with the ball end 13, a first internal thread 22 provided on the inner side of the plunger head 21, a first external thread 23 provided on the outer side of the plunger tube 11, an annular notch 24 provided on the top of the plunger tube 11, and a spring limit frame 26 provided on the side of the plunger tube 11. The ball plunger assembly also includes a second internal thread 25 provided in the annular notch 24 and an external thread ring 27 fixed to the bottom surface of the spring limit frame 26;

[0031] During specific use, the user places the spring 12 and the ball end 13 in the plunger tube 11, and then rotates the plunger head 21 to connect the first internal thread 22 with the first external thread 23, and rotates the spring limiting frame 26 to connect the external thread ring 27 with the second internal thread 25. At this time, the assembly is completed, the spring limiting frame 26 limits the spring 12 to prevent the spring 12 from falling off, and the plunger head 21 limits the ball end 13 to prevent the ball end 13 from separating from the plunger tube 11. In this way, when the ball end 13 is squeezed by the outside world, the ball end 13 moves inward and compresses the spring 12. In this way, no matter whether the plunger tube 11, the spring 12, the ball end 13, the plunger head 21 or the spring limiting frame 26 is worn or damaged, they can be replaced separately and can be used after assembly without overall replacement, thereby reducing the cost of use. Example 2

[0032] Please refer to Figure 3 , the arc-shaped sleeve plate 30 is directly in contact with the ball end 13, so that the force on the ball end 13 is uniform, avoiding the wear of the ball end 13 due to uneven force;

[0033] Specifically, it also includes an arc-shaped sleeve plate 30, which is fixed to the end of the spring 12;

[0034] The arc-shaped sleeve plate 30 is driven by the spring 12 to move up and down along the inner cavity of the plunger tube 11 .

[0035] During specific use, the arc-shaped sleeve plate 30 fits with the arc surface of the ball end 13 , so that the ball end 13 is subjected to force as a whole, thereby avoiding the occurrence of uneven force and wear of the ball end 13 .

[0036] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A ball plunger for limiting, characterized in that: include: A ball-end plunger main body assembly, the ball-end plunger main body assembly comprising a plunger tube (11), a spring (12) arranged in the plunger tube (11), and a ball end (13) arranged at the front end of the spring (12); A ball-end plunger assembly, the ball-end plunger assembly comprising a plunger head (21) sleeved with the ball end (13), a first internal thread (22) provided on the inner side of the plunger head (21), a first external thread (23) provided on the outer side of the plunger tube (11), an annular notch (24) provided on the top end of the plunger tube (11), and a spring limit frame (26) provided on the side of the plunger tube (11).

2. A ball plunger for limiting position according to claim 1, characterized in that: The ball plunger assembly further comprises a second internal thread (25) provided in the annular notch (24) and an external thread ring (27) fixed to the bottom surface of the spring limit frame (26).

3. A ball plunger for limiting position according to claim 2, characterized in that: The first internal thread (22) and the first external thread (23) are connected to each other, and the plunger head (21) limits the position of the ball end (13).

4. A ball plunger for limiting position according to claim 3, characterized in that: The external thread ring (27) and the second internal thread (25) are connected to each other, and the top end of the spring (12) and the inner bottom surface of the spring limiting frame (26) are in contact with each other.

5. A ball plunger for limiting position according to claim 4, characterized in that: It also includes an arc-shaped sleeve plate (30), wherein the arc-shaped sleeve plate (30) is fixed to the end of the spring (12); The arc-shaped sleeve plate (30) is driven by the spring (12) to move up and down along the inner cavity of the plunger tube (11).

6. A ball plunger for limiting position according to claim 5, characterized in that: The arc-shaped sleeve plate (30) and the arc surface of the spherical end (13) fit each other.

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