Novel hydraulic mechanical sealing element

Abstract

The utility model discloses a novel hydraulic mechanical sealing element, which belongs to the technical field of sealing elements and comprises a sealing element structure and a protective component, a fixing component is connected between a lower pressing ring and a rubber ring, the protective component is mounted on the outer side of a rubber tube, and the rubber ring and the rubber tube are integrally sleeved at the joint of a piston rod and a cylinder cover. The lower pressing ring and the connecting cylinder are connected to the lower end of the rubber pipe in a sleeving mode, after the positioning threaded hole A and the positioning threaded hole B are aligned, the rubber ring, the lower pressing ring and the connecting cylinder are connected through the bolt body B and the bolt body A, and the bolt body A and the bolt body B which rotate downwards press the rubber ring to the connecting position of the piston rod and the cylinder cover for sealing. And the positioning rods are inserted into the insertion holes to position the side frame A and the side frame B, the magnet rods are inserted into the magnet rings to fix the side frame A and the side frame B, and dustproof treatment is conducted on the outer sides through the rubber rings and the rubber pipes.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing components, in particular to a novel hydraulic mechanical sealing component. Background Art

[0002] The seals of hydraulic machinery are the key components to ensure the normal operation of the hydraulic system. Seals are usually made of wear-resistant, pressure-resistant and corrosion-resistant materials, such as rubber, polyurethane, fluororubber, etc. Suitable seals need to consider the system's working conditions, pressure, temperature and medium. Timely replacement of severely worn seals is essential to maintain the normal operation of the system.

[0003] The existing Chinese patent with publication number CN217950877U discloses a hydraulic seal, including a fixed seat and a cleaning sleeve, wherein the upper inner portion of the fixed seat is provided with a cleaning sleeve mounting groove, and the side wall of the cleaning sleeve mounting groove is provided with a thread, the middle and upper inner portion of the fixed seat is provided with a sponge ring mounting groove, the sponge ring mounting groove is communicated with the cleaning sleeve mounting groove, and the middle and lower inner portion of the fixed seat is provided with a sealing sleeve mounting groove; the utility model is installed on the cylinder head of the hydraulic cylinder and sleeved on the piston rod. The utility model consists of a fixed seat and a cleaning sleeve, the cutting edge on the top of the cleaning sleeve can shovel off dust and oil attached to the surface of the piston rod to prevent dust and oil from being brought into the piston cylinder, a sponge ring is installed inside the fixed seat, the sponge ring can further clean the surface of the piston rod, a sealing sleeve is installed inside the fixed seat, and the sealing sleeve can seal the connection position between the piston rod and the cylinder head, thereby reducing leakage.

[0004] With respect to the above-mentioned related technologies, a sealing sleeve is used to seal the connection position between the piston rod and the cylinder head. However, in actual use, the sealing member is used in conjunction with the sealing sleeve. When the hydraulic cylinder is extended or shortened, the sealing sleeve is not subjected to external pressure, resulting in the sealing sleeve failing to produce a sealing effect on the connection position between the piston rod and the cylinder head, which is inconvenient to use.

[0005] So we proposed a new type of hydraulic mechanical seal to solve the problems mentioned above. Utility Model Content

[0006] The utility model aims to provide a novel hydraulic mechanical seal. The device is adopted to work, thereby solving the problem that the sealing sleeve is not subjected to external pressure and fails to produce a sealing effect.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a novel hydraulic mechanical seal, comprising a seal structure, the seal structure comprising a rubber ring and a rubber tube installed at the top of the rubber ring, a trapezoidal tube installed at the top of the rubber tube, a lower pressure ring sleeved at the top of the rubber ring and on the outside of the rubber tube, a positioning threaded hole A is penetrated through the middle end of the lower pressure ring and the rubber ring, a protective component is sleeved on the outside of the rubber ring and on the outer surface of the rubber tube, a fixing component is connected between the protective component, the lower pressure ring and the rubber ring, and a protective component is installed on the outside of the rubber tube;

[0008] The protective component includes a connecting tube and a positioning threaded hole B provided on the outer side of the top end of the connecting tube, and the positioning threaded hole A is aligned with the positioning threaded hole B;

[0009] The fixing component includes a bolt body A and a bolt body B arranged on one side of the bolt body A. The bolt body B is provided with four groups, and the four groups of bolt bodies B are symmetrically installed on both sides of the top of the rubber ring.

[0010] Preferably, an outer ring is installed on the outer side of the rubber ring, a threaded groove is provided on the outer surface of the lower end of the rubber tube, a mounting threaded hole is penetrated through the middle end of the connecting tube, and the connecting tube with the mounting threaded hole is threadedly connected to the outer surface of the rubber tube with the threaded groove.

[0011] Preferably, the protection component includes a side frame A and a side frame B arranged on one side of the side frame A, and the side frame A and the side frame B are located at the top end of the lower pressure ring and the side end of the rubber tube.

[0012] Preferably, magnet rods are installed on both sides of the bottom end of the side frame A, and a positioning rod is installed at the bottom end of the side frame A, and the diameter of the positioning rod is smaller than the diameter of the magnet rod.

[0013] Preferably, the side frame A has the same structure as the side frame B, and the magnet rod and the positioning rod are both installed at the bottom end of the side frame B.

[0014] Preferably, a magnet ring is installed inside the top of the bolt body B, and the magnet rod is inserted into the magnet ring. The magnet rod and the magnet ring are attracted to each other by opposite sexes. A socket is opened at the top of the bolt body A, and the positioning rod is inserted into the socket.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] The utility model provides a novel hydraulic mechanical seal, in which a rubber ring and a rubber tube are integrally sleeved at the connection between a piston rod and a cylinder cover, a lower pressure ring and a connecting tube are sleeved at the lower end of the rubber tube, and when a positioning threaded hole A is aligned with a positioning threaded hole B, a bolt body B and a bolt body A are used to connect the rubber ring, the lower pressure ring and the connecting tube, and the rotating bolt body A and the bolt body B press the rubber ring down at the connection between the piston rod and the cylinder cover to seal.

[0017] The utility model provides a novel hydraulic mechanical seal. A positioning rod is inserted into a socket to position a side frame A and a side frame B. A magnet rod is inserted into a magnet ring to fix the side frame A and the side frame B. A rubber ring and a rubber tube are used to perform dust prevention on the outer side. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the rubber ring and rubber tube structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the protective component structure of the utility model;

[0021] Figure 4 It is a schematic diagram of the structure of the fixing component of the utility model.

[0022] In the figure: 1. sealing structure; 11. rubber ring; 111. lower pressure ring; 112. outer ring; 113. positioning threaded hole A; 12. rubber tube; 121. threaded groove; 13. trapezoidal tube; 14. protective component; 141. connecting tube; 142. mounting threaded hole; 143. positioning threaded hole B; 15. fixing component; 151. bolt body A; 152. bolt body B; 153. socket; 154. magnet ring; 16. protective component; 161. side frame A; 162. side frame B; 163. magnet rod; 164. positioning rod. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example 1: Please refer to Figure 1-Figure 4A novel hydraulic mechanical seal comprises a seal structure 1, wherein the seal structure 1 comprises a rubber ring 11 and a rubber tube 12 installed at the top of the rubber ring 11, a trapezoidal tube 13 is installed at the top of the rubber tube 12, a lower pressure ring 111 is sleeved at the top of the rubber ring 11 and on the outside of the rubber tube 12, a positioning threaded hole A113 is penetrated through the lower pressure ring 111 and the middle end of the rubber ring 11, a protective component 14 is sleeved on the outside of the rubber ring 11 and on the outer surface of the rubber tube 12, a fixing component 15 is connected between the protective component 14, the lower pressure ring 111 and the rubber ring 11, and a protective component 16 is installed on the outside of the rubber tube 12.

[0025] The protection component 14 includes a connecting tube 141 and a positioning threaded hole B143 provided on the outer side of the top end of the connecting tube 141 , and the positioning threaded hole A113 is aligned with the positioning threaded hole B143 .

[0026] The fixing component 15 includes a bolt body A151 and a bolt body B152 arranged on one side of the bolt body A151. The bolt body B152 is provided with four groups, and the four groups of bolt bodies B152 are symmetrically installed on both sides of the top of the rubber ring 11. The bolt body A151 and the bolt body B152 are threadedly connected inside the positioning threaded hole B143 and the positioning threaded hole A113, and the connecting tube 141 is pressed down to press the pressing ring 111 and the rubber ring 11 to ensure that the rubber ring 11 seals the connection position of the piston rod and the cylinder head.

[0027] An outer ring 112 is installed on the outer side of the rubber ring 11, a threaded groove 121 is provided on the outer surface of the lower end of the rubber tube 12, a mounting threaded hole 142 is penetrated through the middle end of the connecting tube 141, and the connecting tube 141 with the mounting threaded hole 142 is threadedly connected to the outer surface of the rubber tube 12 with the threaded groove 121. When the connecting tube 141 presses down the pressing ring 111 and the rubber ring 11, the outer ring 112 is stacked together to perform dust-proof treatment on the rubber ring 11.

[0028] In this embodiment: the rubber ring 11 and the rubber tube 12 are integrally sleeved at the connection between the piston rod and the cylinder head, the lower pressure ring 111 and the connecting tube 141 are sleeved at the lower end of the rubber tube 12, and when the positioning threaded hole A113 is aligned with the positioning threaded hole B143, four groups of bolt bodies B152 are threadedly connected to the inside of the positioning threaded hole B143 and the positioning threaded hole A113, and the four groups of bolt bodies B152 are symmetrically installed at the upper end of the lower pressure ring 111, and the bolt body A151 is threadedly connected to the inside of the remaining positioning threaded hole B143 and the positioning threaded hole A113 to connect the rubber ring 11, the lower pressure ring 111 and the connecting tube 141, and the rotating bolt body A151 and the bolt body B152 will press the rubber ring 11 down at the connection between the piston rod and the cylinder head to seal it, and the rubber ring 11 is squeezed, and the outer ring 112 on the outside of the rubber ring 11 is stacked together to protect the outside of the rubber ring 11.

[0029] Example 2: Please refer to Figure 1 and Figure 4 The protective component 16 includes a side frame A161 and a side frame B162 arranged on one side of the side frame A161, and the side frame A161 and the side frame B162 are located at the top end of the lower pressure ring 111 and the side end of the rubber tube 12. The side frame A161 and the side frame B162 are used to perform dust-proof treatment on the rubber ring 11 and the rubber tube 12.

[0030] Magnet rods 163 are installed on both sides of the bottom end of the side frame A161 . A positioning rod 164 is installed on the bottom end of the side frame A161 , and the diameter of the positioning rod 164 is smaller than the diameter of the magnet rod 163 .

[0031] The side frame A161 has the same structure as the side frame B162 , and the magnet rod 163 and the positioning rod 164 are both installed at the bottom end of the side frame B162 . The magnet rod 163 is used to fix the position of the protective component 16 .

[0032] A magnet ring 154 is installed inside the top of the bolt body B152, and the magnet rod 163 is inserted into the inside of the magnet ring 154. The magnet rod 163 and the magnet ring 154 are attracted to each other by opposite charges. A socket 153 is opened at the top of the bolt body A151, and the positioning rod 164 is inserted into the inside of the socket 153 to position and fix the position of the protective component 16.

[0033] In this embodiment: the side frame A161 and the side frame B162 are docked and installed on the outer surfaces of the rubber ring 11 and the rubber tube 12, the positioning rod 164 is inserted into the interior of the insertion hole 153 to position the side frame A161 and the side frame B162, the magnet rod 163 is inserted into the interior of the magnet ring 154 to fix the side frame A161 and the side frame B162, and the rubber ring 11 and the rubber tube 12 are used to perform dustproof treatment on the outside.

[0034] Working principle: The rubber ring 11 and the rubber tube 12 are integrally sleeved on the connection between the piston rod and the cylinder head, and the lower pressure ring 111 and the connecting tube 141 are sleeved on the lower end of the rubber tube 12. When the positioning threaded hole A113 is aligned with the positioning threaded hole B143, the rubber ring 11, the lower pressure ring 111 and the connecting tube 141 are connected by the bolt body B152 and the bolt body A151. The rotating bolt body A151 and the bolt body B152 will press the rubber ring 11 down on the connection between the piston rod and the cylinder head to seal. The positioning rod 164 is inserted into the inside of the socket 153 to position the side frame A161 and the side frame B162. The magnet rod 163 is inserted into the inside of the magnet ring 154 to fix the side frame A161 and the side frame B162. The rubber ring 11 and the rubber tube 12 are used to perform dustproof treatment on the outside.

[0035] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0036] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A novel hydraulic mechanical seal, comprising a seal structure (1), characterized in that: The sealing structure (1) comprises a rubber ring (11) and a rubber tube (12) mounted on the top of the rubber ring (11); a trapezoidal tube (13) is mounted on the top of the rubber tube (12); a lower pressure ring (111) is sleeved on the top of the rubber ring (11) and on the outside of the rubber tube (12); a positioning threaded hole A (113) is penetrated through the middle of the lower pressure ring (111) and the rubber ring (11); a protective component (14) is sleeved on the outside of the rubber ring (11) and on the outer surface of the rubber tube (12); a fixing component (15) is connected between the protective component (14), the lower pressure ring (111) and the rubber ring (11); and a protective component (16) is mounted on the outside of the rubber tube (12); The protective component (14) comprises a connecting tube (141) and a positioning threaded hole B (143) provided on the outer side of the top end of the connecting tube (141), and the positioning threaded hole A (113) is aligned with the positioning threaded hole B (143); The fixing member (15) comprises a bolt body A (151) and a bolt body B (152) arranged on one side of the bolt body A (151), and four groups of the bolt bodies B (152) are provided, and the four groups of the bolt bodies B (152) are symmetrically mounted on both sides of the top end of the rubber ring (11).

2. A novel hydraulic mechanical seal according to claim 1, characterized in that: An outer ring (112) is installed on the outer side of the rubber ring (11); a threaded groove (121) is provided on the outer surface of the lower end of the rubber tube (12); a mounting threaded hole (142) is provided through the middle end of the connecting tube (141); the connecting tube (141) having the mounting threaded hole (142) is threadedly connected to the outer surface of the rubber tube (12) having the threaded groove (121).

3. A novel hydraulic mechanical seal according to claim 1, characterized in that: The protection component (16) comprises a side frame A (161) and a side frame B (162) arranged on one side of the side frame A (161), and the side frame A (161) and the side frame B (162) are located at the top end of the lower pressure ring (111) and the side end of the rubber tube (12).

4. A novel hydraulic mechanical seal according to claim 3, characterized in that: Magnet rods (163) are installed on both sides of the bottom end of the side frame A (161), and a positioning rod (164) is installed at the bottom end of the side frame A (161), and the diameter of the positioning rod (164) is smaller than the diameter of the magnet rod (163).

5. A novel hydraulic mechanical seal according to claim 4, characterized in that: The side frame A (161) has the same structure as the side frame B (162), and the magnet rod (163) and the positioning rod (164) are both installed at the bottom end of the side frame B (162).

6. A novel hydraulic mechanical seal according to claim 5, characterized in that: A magnet ring (154) is installed inside the top end of the bolt body B (152), and a magnet rod (163) is inserted into the inside of the magnet ring (154). The magnet rod (163) and the magnet ring (154) attract each other due to opposite charges. A plug hole (153) is opened at the top end of the bolt body A (151), and a positioning rod (164) is inserted into the inside of the plug hole (153).

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