Novel teat connecting rod with detachable movable telescopic ejector pin

Abstract

The utility model relates to the technical field of telescopic ejector pins, in particular to a novel teat connecting rod of a detachable movable telescopic ejector pin, which comprises a connecting pipe, a limiting ring is arranged at one end of the connecting pipe, an inner groove is arranged in the limiting ring, and an inner thread is arranged on the inner wall surface of the front side end of the inner groove. An inner thread is arranged on the center body, a limiting ring is arranged on the center body, a nipple end is movably connected to one side of the limiting ring, an end threaded rod is installed on the nipple end and is in threaded connection with the inner thread, and a movable end is connected into the nipple end. According to the scheme, the possibility that the whole connecting rod needs to be replaced due to abrasion of a sealing face of the nipple end and damage of the center body is reduced; the complexity and time for replacing the nipple end and the ejector pin body are reduced, the effect that the device is convenient to disassemble is improved, parts which are easy to damage can be rapidly replaced, the working efficiency is greatly improved, the effect that the device saves more maintenance and replacement cost is improved, and the situation of waste is reduced.

Description

Technical Field

[0001] This utility model relates to the field of telescopic ejector pin technology, and in particular to a novel nipple connecting rod for a detachable telescopic ejector pin. Background Technology

[0002] A pressure-holding valve is a type of valve used to maintain stable system pressure and is widely used in hydraulic, pneumatic, petroleum, and chemical industries. Its core function is to keep the system pressure within a set range. When the pressure exceeds or falls below the preset value, it automatically adjusts or releases the pressure to ensure safe equipment operation.

[0003] Chinese patent CN221592562U discloses a movable telescopic ejector pin. The structure, supported by an elastic support member, enables the ejector pin to automatically extend and retract without manual adjustment. This device is convenient to use and avoids situations where the piston valve core of the pressure holding valve is not fully engaged or over-engaged, providing users with great convenience. It is safe, fast, and efficient. However, in the field of gas filling, the nipple connecting rod needs to be connected and disassembled repeatedly. Repeated use can damage the nipple sealing surface and the ejector pin. This structure can only be replaced as a whole, resulting in waste. Therefore, a new type of nipple connecting rod with a detachable movable telescopic ejector pin is proposed. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a novel detachable telescopic nipple connecting rod.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A novel nipple connecting rod for a detachable, movable, telescopic ejector pin includes a connecting tube. A limiting ring is installed on one end of the connecting tube. An inner groove is formed inside the limiting ring. An internal thread is formed on the inner wall surface of the front end of the inner groove. A nipple end is movably connected to one side of the limiting ring. An end threaded rod is installed on the nipple end. The end threaded rod is threaded onto the internal thread. A movable end is connected inside the nipple end. An ejector pin body is installed at one end of the movable end.

[0007] Preferably, the limiting ring is integrally installed on the front end of the connecting pipe, the inner groove is opened through the connecting pipe, and the outer surface of the tail end of the connecting pipe is provided with a tail end external thread.

[0008] Preferably, an annular groove is provided on the outer surface of the limiting ring, and a sealing gasket is provided in the annular groove, the sealing gasket being sealed between the nipple end and the limiting ring.

[0009] Preferably, a through hole is provided through the nipple end and the end threaded rod, the movable end and the ejector pin body are movably connected in the through hole, one end of the movable end is limited in the through hole, and the outer end of the ejector pin body extends to the outside of the through hole.

[0010] Preferably, the ejector pin body is integrally connected to the front end of the movable end, and a spring is provided on the rear end of the movable end, with the other end of the spring being limited and connected to the inner groove.

[0011] Preferably, the movable end and the ejector pin body have an inner cavity, and a vent hole is provided on one side of the inner cavity. The ejector pin body is cylindrical and has four guide grooves on it, which are connected to the inner cavity.

[0012] The beneficial effects of this utility model are:

[0013] This design facilitates the disassembly and reassembly of the connecting tube and the nipple end through the connection of the end threaded rod and the internal thread, achieves a sealed connection between the two using a sealing gasket, and allows the ejector pin body to pop out automatically using a spring.

[0014] This solution reduces the possibility of replacing the entire connecting rod due to wear on the nipple end sealing surface and damage to the ejector pin body. It also reduces the complexity and time required to replace the nipple end and ejector pin body, improves the ease of disassembly of the device, enables quick replacement of easily damaged parts, greatly improves work efficiency, and enhances the device's cost-effectiveness in terms of maintenance and replacement, thus reducing waste. Attached Figure Description

[0015] Figure 1 This is an exploded structural diagram of a nipple connecting rod for a novel detachable, movable, telescopic ejector pin proposed in this utility model.

[0016] Figure 2 An exploded front view of the nipple connecting rod of a novel detachable movable telescopic ejector pin proposed in this utility model.

[0017] Figure 3 This is a cross-sectional view of the nipple connecting rod of a novel detachable telescopic ejector pin proposed in this utility model.

[0018] Figure 4 for Figure 3 Partial front view structural diagram;

[0019] Figure 5 This is a cross-sectional view of the connecting tube and the nipple end.

[0020] In the diagram: 1. Connecting pipe; 2. Tail end external thread; 3. Limiting ring; 4. Annular groove; 5. Inner groove; 6. Sealing gasket; 7. Nipple end; 8. End threaded rod; 9. Movable end; 10. Spring; 11. Ejector pin body; 12. Internal thread. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Example: Refer to Figure 1-5 A novel nipple connecting rod with a detachable telescopic ejector pin includes a connecting tube 1. A limiting ring 3 is installed on one end of the connecting tube 1. An inner groove 5 is formed inside the limiting ring 3. An internal thread 12 is formed on the inner wall surface of the front end of the inner groove 5. A nipple end 7 is movably connected to one side of the limiting ring 3. An end threaded rod 8 is installed on the nipple end 7 and is threaded onto the internal thread 12. A movable end 9 is connected inside the nipple end 7. An ejector pin body 11 is installed at one end of the movable end 9. The limiting ring 3 is integrally installed on the front end of the connecting tube 1. The inner groove 5 is formed through the connecting tube 1. An external thread 2 is formed on the outer surface of the tail end of the connecting tube 1 to facilitate the installation and limiting of the connecting tube 1.

[0023] Specifically, an annular groove 4 is provided on the outer surface of the limiting ring 3, and a sealing gasket 6 is provided in the annular groove 4. The sealing gasket 6 is connected between the nipple end 7 and the limiting ring 3 to seal between the two.

[0024] In this embodiment, a through hole is formed in both the nipple end 7 and the threaded rod 8. The movable end 9 and the ejector body 11 are movably connected within the through hole. One end of the movable end 9 is limited within the through hole, and the outer end of the ejector body 11 extends to the outside of the through hole. The ejector body 11 is integrally connected to the front end of the movable end 9, and a spring 10 is provided on the rear end of the movable end 9. The other end of the spring 10 is limited and connected to the inner groove 5. An inner cavity is formed in both the movable end 9 and the ejector body 11. A vent hole is provided on one side of the inner cavity. The ejector body 11 is cylindrical and has four guide grooves on it, which are connected to the inner cavity.

[0025] Working principle: When the nipple end 7 is worn or the ejector body 11 is damaged after long-term use of the connecting tube 1 and needs to be replaced, the nipple end 7 is rotated and disassembled. At this time, the nipple end 7 and the ejector body 11 can be taken out and replaced directly. The sealing gasket 6 can also be replaced at the same time. After the replacement is completed, the spring 10 and the ejector body 11 are put into the inner groove 5, the sealing gasket 6 is put into the annular groove 4, and then the end threaded rod 8 is connected to the internal thread 12.

[0026] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0027] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A novel nipple connecting rod with a detachable, movable, telescopic ejector pin, characterized in that, include: A connecting tube (1) is provided with a limiting ring (3) installed on one end of the connecting tube (1). An inner groove (5) is provided in the limiting ring (3). An internal thread (12) is provided on the inner wall surface of the front end of the inner groove (5). A nipple end (7) is movably connected to one side of the limiting ring (3). An end thread rod (8) is installed on the nipple end (7). The end thread rod (8) is threaded to the internal thread (12). A movable end (9) is connected in the nipple end (7). A pin body (11) is installed at one end of the movable end (9).

2. The nipple connecting rod of a novel detachable telescopic ejector pin according to claim 1, characterized in that, The limiting ring (3) is integrally installed on the front end of the connecting pipe (1), the inner groove (5) is opened through the connecting pipe (1), and the outer surface of the tail end of the connecting pipe (1) is provided with a tail end external thread (2).

3. The nipple connecting rod of a novel detachable telescopic ejector pin according to claim 2, characterized in that, The outer side of the limiting ring (3) is provided with an annular groove (4), and a sealing gasket (6) is provided in the annular groove (4). The sealing gasket (6) is sealed between the nipple end (7) and the limiting ring (3).

4. The nipple connecting rod of a novel detachable telescopic ejector pin according to claim 3, characterized in that, The nipple end (7) and the end threaded rod (8) are provided with through holes. The movable end (9) and the ejector body (11) are movably connected in the through holes. One end of the movable end (9) is limited in the through holes. The outer end of the ejector body (11) extends to the outside of the through holes.

5. The nipple connecting rod of a novel detachable telescopic ejector pin according to claim 4, characterized in that, The ejector pin body (11) is integrally connected to the front end of the movable end (9), and a spring (10) is provided on the rear end of the movable end (9). The other end of the spring (10) is limited and connected to the inner groove (5).

6. The nipple connecting rod of a novel detachable telescopic ejector pin according to claim 5, characterized in that, The movable end (9) and the ejector body (11) are provided with an inner cavity. A vent hole is provided on one side of the inner cavity. The ejector body (11) is cylindrical and has four guide grooves on it. The guide grooves and the inner cavity are connected.

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