Seam beautifying rubber tube piston

Abstract

The utility model discloses a seam beautifying rubber tube piston which comprises a piston body, the piston body is a cylinder with an opening in one end, a cylinder is arranged in the piston body, a plurality of sets of partition plates are evenly arranged on the outer side of the cylinder in a radial mode, and the partition plates abut against the inner wall of the piston body. A threaded sleeve is arranged in the cylinder and is a cylinder body with an opening in one end, and internal threads are arranged on the inner wall of the threaded sleeve. Conical guide parts are arranged at the two ends of the piston body, a first mounting groove and a second mounting groove are formed in the periphery of the piston body, an O-shaped ring is arranged in the first mounting groove, and a rubber sealing assembly is arranged in the second mounting groove. The sealing device is novel in structure, the sealing ring is convenient and fast to install, and meanwhile the piston is provided with the butt-joint component which is convenient to take out and recycle for secondary utilization.

Description

Technical Field

[0001] The utility model relates to the field of manufacturing of caulking hoses, and particularly to a caulking hose piston. Background Art

[0002] With the continuous expansion of the home decoration market, as an important decoration material, the demand for caulking agents is increasing year by year; as an important component for the packaging and use of caulking agents, the performance and quality of caulking hose pistons directly affect the use effect and construction efficiency of caulking agents.

[0003] There are some deficiencies in the design of traditional caulking hose pistons. For example, the piston is prone to leaking glue and requires additional sealing rings. Moreover, when the sealing ring is sleeved around the piston periphery, it is slightly troublesome to perform an operation of expanding the diameter of the sealing ring, and the sleeving efficiency is slightly low; at the same time, when the caulking hose is recovered after the piston is pushed in, it is relatively difficult to take out the piston; especially for two-component hoses, since the glue outlet hole is at the edge of the hose body, when the piston is pushed back by a push rod through the glue outlet hole, the piston is unevenly stressed and it is relatively difficult to take out the piston. Content of the Utility Model

[0004] The purpose of the utility model is to provide a caulking hose piston with high sealing performance and convenient installation and piston removal.

[0005] The purpose of the utility model is achieved as follows: A caulking hose piston includes a piston body. The piston body is a cylinder with one end open. A cylindrical barrel is arranged inside the piston body. The cylindrical barrel is evenly provided with multiple groups of spacer plates in a radially outwardly divergent manner, and the spacer plates abut against the inner wall of the piston body; a threaded sleeve is arranged inside the cylindrical barrel. The threaded sleeve is a barrel with one end open, and internal threads are arranged on the inner wall of the threaded sleeve; tapered guiding parts are arranged at both ends of the piston body. A first installation groove and a second installation groove are arranged on the periphery of the piston body. An O-ring is arranged in the first installation groove, and a rubber sealing assembly is arranged in the second installation groove.

[0006] Preferably, the cylindrical barrel is a cylinder with one end open, and the opening direction of the cylindrical barrel is the same as that of the piston body. Internal threads are arranged on the inner wall of the cylindrical barrel.

[0007] Preferably, external threads are arranged on the periphery of the threaded sleeve. The threaded sleeve is threadedly connected with the inner wall of the cylindrical barrel, and glue is filled between the threaded sleeve and the inner wall of the cylindrical barrel.

[0008] Preferably, the external threads of the threaded sleeve and the internal threads of the threaded sleeve have opposite helix directions.

[0009] Preferably, the rubber sealing assembly is formed by combining a V-shaped rubber ring and an O-shaped rubber ring, and the O-shaped rubber ring is placed inside the opening of the V-shaped rubber ring.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0011] 1. Conical guiding parts are respectively arranged at both ends of the piston, which facilitates the insertion of the rubber sealing assembly and the O-ring. During installation, the pulling of rubber seals can be avoided, improving the installation efficiency of the seals; at the same time, the conical guiding part also facilitates the insertion of the piston body into the caulking glue tube.

[0012] 2. A fixed cylinder is arranged in the middle of the piston, and a threaded sleeve is arranged in the fixed cylinder, which can be rotatably connected to an external connecting rod. The piston can be taken out by pulling the connecting rod.

[0013] 3. The use of an O-ring and a rubber sealing assembly greatly improves the sealing performance and avoids leakage. Description of the Drawings

[0014] Figure 1 It is a schematic structural diagram of the piston body of the present utility model.

[0015] Figure 2 It is a schematic structural diagram of the piston body, rubber sealing assembly and O-ring of the present utility model.

[0016] Figure 3 It is a schematic structural diagram of the rubber sealing assembly of the present utility model.

[0017] Wherein, 1 is the piston body, 101 is the first installation groove, 102 is the second installation groove, 2 is the cylindrical barrel, 3 is the spacer plate, 4 is the threaded sleeve, 5 is the conical guiding part, 6 is the O-ring, 7 is the rubber sealing assembly, 701 is the V-shaped rubber ring, and 702 is the O-shaped rubber ring. Detailed Embodiments

[0018] The following specific embodiments illustrate the implementation manners of the present utility model. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification.

[0019] It should be noted that in the description of the present utility model, it is necessary to state that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this utility model is customarily placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present utility model. In addition, terms such as "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance. Terms such as "horizontal", "vertical", "hanging" do not mean that the component must be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0020] In the description of the present utility model, it is also necessary to state that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium. It can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0021] As Figures 1-3 shown, a piston for a caulking gun tube includes a piston body 1. The piston body 1 is a cylinder with one end open. A cylindrical barrel 2 is provided inside the piston body 1. The cylindrical barrel 2 is evenly provided with multiple groups of spacer plates 3 in a radially outwardly divergent manner. The spacer plates 3 are in contact with the inner wall of the piston body 1. A threaded sleeve 4 is provided inside the cylindrical barrel 2. The threaded sleeve 4 is a barrel with one end open. Internal threads are provided on the inner wall of the threaded sleeve 4. Conical guiding parts 5 are provided at both ends of the piston body 1. A first installation groove 101 and a second installation groove 102 are provided on the periphery of the piston body 1. An O-ring 6 is provided in the first installation groove 101, and a rubber sealing assembly 7 is provided in the second installation groove 102.

[0022] As Figure 1 shown, the cylindrical barrel 2 is a cylinder with one end open. The opening direction of the cylindrical barrel 2 is the same as that of the piston body 1. Internal threads are provided on the inner wall of the cylindrical barrel 2. The internal threads of the cylindrical barrel are used to connect with an external connecting rod (which can be used for docking when the piston is taken out).

[0023] As Figure 1As shown, an external thread is provided on the periphery of the threaded sleeve 4, the threaded sleeve 4 is connected to the inner wall of the cylindrical tube 2 by threads, and glue is filled between the threaded sleeve 4 and the inner wall of the cylindrical tube 2. The threaded sleeve is made of metal material and can be used for rotational connection with an external connecting rod multiple times, avoiding excessive wear of the plastic material after multiple connections and extending the service life.

[0024] like Figure 1 As shown, the external thread of the threaded sleeve 4 and the internal thread of the threaded sleeve 4 rotate in opposite directions, ensuring that when the external connecting rod is rotationally connected to the threaded sleeve, the threaded sleeve will not be driven to rotate, thereby achieving a connection between the two and facilitating the subsequent removal of the piston.

[0025] like Figure 3 As shown, the rubber sealing assembly 7 is formed by a combination of a V-shaped rubber ring 701 and an O-shaped rubber ring 702. The O-shaped rubber ring 702 is placed in the opening of the V-shaped rubber ring 701. The V-shaped rubber ring can be opened outward to form a conflict with the inner wall of the seam-seaming hose. At the same time, the O-shaped ring can provide tension so that the V-shaped rubber ring can always be in an open state, thereby improving the sealing performance.

[0026] The working principle of the utility model is explained as follows: during assembly, the combined sealing ring is inserted from one end of the piston body, and the O-ring is inserted from the other end of the piston body. The tapered guide portion greatly improves the insertion rate of the sealing ring. At the same time, a fixed cylinder is provided in the middle of the piston, and a threaded sleeve is provided in the fixed cylinder, which can be rotatably connected to an external connecting rod. The piston can be taken out by pulling the connecting rod, which is convenient and quick.

[0027] The above-described embodiments are merely descriptions of preferred implementations of the present invention, and are not intended to limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by ordinary personnel in the field to the technical solution of the present invention should fall within the protection scope of the present invention, and the technical contents of the present invention for protection have been fully recorded in the claims.

Claims

1. A piston for a seam-beautifying hose, characterized in that: It includes a piston body, which is a cylinder with an open end. A cylindrical tube is arranged inside the piston body, and a plurality of groups of spacers are evenly arranged on the cylindrical tube in a radiating shape outward, and the spacers are in contact with the inner wall of the piston body; a threaded sleeve is arranged inside the cylindrical tube, and the threaded sleeve is a cylinder with an open end, and an inner thread is arranged on the inner wall of the threaded sleeve; conical guide parts are arranged at both ends of the piston body, and a first mounting groove and a second mounting groove are arranged on the periphery of the piston body, an O-ring is arranged in the first mounting groove, and a rubber sealing assembly is arranged in the second mounting groove.

2. A piston for a seam-beautifying hose according to claim 1, characterized in that: The cylindrical barrel is a cylinder with an opening at one end. The opening direction of the cylindrical barrel is consistent with the opening direction of the piston body. The inner wall of the cylindrical barrel is provided with an internal thread.

3. The piston for a seam-beautifying hose according to claim 1, characterized in that: The outer periphery of the threaded sleeve is provided with an external thread, the threaded sleeve is connected to the inner wall of the cylindrical barrel through threads, and glue is filled between the threaded sleeve and the inner wall of the cylindrical barrel.

4. The piston for a seam-beautifying hose according to claim 1, characterized in that: The external thread of the threaded sleeve and the internal thread of the threaded sleeve have opposite rotation directions.

5. The piston for the seam-beautifying hose according to claim 1, characterized in that: The rubber sealing assembly is formed by combining a V-shaped rubber ring and an O-shaped rubber ring, and the O-shaped rubber ring is placed in the opening of the V-shaped rubber ring.

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