CN209875091U - A high-efficient supplementary cover of pressing for packing installation - Google Patents
A high-efficient supplementary cover of pressing for packing installation Download PDFInfo
- Publication number
- CN209875091U CN209875091U CN201920586707.3U CN201920586707U CN209875091U CN 209875091 U CN209875091 U CN 209875091U CN 201920586707 U CN201920586707 U CN 201920586707U CN 209875091 U CN209875091 U CN 209875091U
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- Prior art keywords
- pressing sleeve
- auxiliary pressing
- installation
- groove
- packing
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- Sealing Devices (AREA)
Abstract
The utility model discloses a high-efficient supplementary cover of pressing for packing installation. The auxiliary pressing sleeve is integrally circular and is formed by combining two symmetrical semicircular rings; the auxiliary pressing sleeve is made of nylon materials; the inner wall of the semi-circular ring is provided with a groove with the depth of 0.4-0.6MM, and a transition chamfer angle between the inner concave surface of the groove and the minimum inner diameter surface of the inner wall of the semi-circular ring is 15-20 degrees; the width of the minimum inner diameter surface of the upper end and the lower end is 3-5 MM. The auxiliary pressing sleeve of the utility model is in two-half opening type, so that the auxiliary pressing sleeve can be taken out from the mounting groove more easily, and the mounting time can be effectively reduced without detaching the auxiliary pressing sleeve completely in the mounting process; the middle part of the inner wall of the round sleeve is excavated with a groove, so that the valve rod and the shell can be effectively protected from being damaged, and the installation difficulty and the installation time are reduced; the hardness of the nylon plastic is far lower than that of the metal valve rod and the shell, the valve rod and the shell can be effectively protected from being damaged, the valve rod and the shell are not easy to rust, and the use cost is low.
Description
Technical Field
The utility model belongs to the technical field of it is sealed, a packing mounting tool is related to, concretely relates to high-efficient supplementary cover of pressing for packing installation.
Background
With the stricter environmental protection requirements of people, the requirements of customers in various industries on valves are increased, and the valves are gradually developed from meeting basic conditions of limiting internal leakage and external leakage and flexibly controlling to meet the requirement of the escape emission of the valves to the external environment. To meet the requirement of dissipation, a high-performance packing product, a standard and reasonable installation mode and an efficient installation tool are required.
The supplementary cover that presses of present packing mounting tool is the holistic metal system ring (the cover is pressed to metal system), and the shortcoming of existence is:
1. the metal press fit sleeve may scratch the valve stem during installation of the packing, thereby damaging the valve stem.
2. The friction coefficient between the metal pressing sleeve and the valve rod is large, and the difficulty and time of installation are increased.
3. In order to effectively exert the sealing function of the packing, the packing rings need to be installed one by one (the process of installing the packing is that the packing rings are firstly installed in the groove, then the auxiliary pressing sleeve is sleeved, finally the pressing cover is installed on the auxiliary pressing sleeve to fix the packing rings, and the installation of one packing ring is completed).
4. The metal products are easy to rust after long-term storage, cannot be used and have high cost.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide one kind and can effectively protect valve rod and casing not damaged, reducible installation degree of difficulty and installation time be used for the packing installation high-efficient supplementary pressure cover.
The technical scheme of the utility model as follows:
the utility model relates to a high-efficient supplementary cover of pressing for packing installation, it has such characteristic:
the auxiliary pressing sleeve is integrally a circular ring and is formed by combining two symmetrical (opposite-cutting) halves (two semicircular rings).
Further, this a high-efficient supplementary pressure cover for packing installation, it has the recess to open on the ring inner wall (internal diameter side).
Furthermore, the efficient auxiliary pressing sleeve for packing installation is provided with a groove with the depth of 0.4-0.6MM on the inner wall (inner diameter side) of the circular ring, and a transition chamfer angle between the inner concave surface of the groove and the minimum inner diameter surface of the inner wall of the semicircular ring is 15-20 degrees.
Furthermore, the efficient auxiliary pressing sleeve for packing installation is provided with a groove with the depth of 0.5MM on the inner wall (inner diameter side) of the circular ring.
Further, the efficient auxiliary pressing sleeve for packing installation is made of nylon materials.
Further, the width of the minimum inner diameter surface of the upper end and the lower end of the circular ring of the efficient auxiliary pressing sleeve for packing installation is 3-5 MM.
Furthermore, the width of the minimum inner diameter surface of the upper end and the lower end of the circular ring of the efficient auxiliary pressing sleeve for packing installation is 4 MM.
The auxiliary pressing sleeve is a round sleeve formed by combining two symmetrical halves (two semicircular rings), and the two halves are designed to reduce the installation difficulty and the installation time.
The middle part of the inner wall of the round sleeve is excavated with a groove with the depth of 0.5MM, and the round sleeve has the following functions: the contact area between the auxiliary pressing sleeve and the valve rod is effectively reduced, and the friction coefficient is reduced.
The transition chamfer between the inner concave surface designed as the groove and the inner diameter surface of the inner wall is 15-20 degrees, and the function is as follows: the packing is convenient to install, the installation difficulty is effectively reduced, and the installation time is reduced.
The minimum inner diameter surface width of the upper end and the lower end is designed to be 4MM, and the effect is as follows: the reasonable size fit of the auxiliary pressing sleeve and the valve rod is guaranteed, the packing is convenient to install, the installation difficulty is effectively reduced, and the installation time is shortened.
The utility model has the advantages that:
the utility model discloses a high-efficient supplementary cover of pressing for packing installation can effectively protect valve rod and casing not damaged, and the reducible installation degree of difficulty and installation time are difficult for rustting, and use cost is low.
The utility model discloses a high-efficient supplementary cover of pressing for packing installation for nylon class plastic products, forms for two semicircle ring combinations to the examination, and digs out the dark recess of 0.5MM in the ring inboard, and its advantage is:
1. because the auxiliary gland is in a two-half opening type, the auxiliary gland can be taken out from the mounting groove more easily, the auxiliary gland sleeve does not need to be removed completely in the mounting process, and the mounting time can be effectively reduced.
2. The groove is dug in the middle of the inner wall of the round sleeve, so that the contact area between the auxiliary pressing sleeve and the valve rod can be effectively reduced, the friction coefficient is reduced, and the installation difficulty and the installation time are reduced.
3. The hardness of the nylon plastic is far lower than that of the metal valve rod and the shell, and the valve rod and the shell can be effectively protected from being damaged.
4. The nylon plastic is not easy to rust and easy to store, and the use cost is saved.
Drawings
Fig. 1 is a schematic structural view of the high-efficiency auxiliary pressing sleeve for packing installation of the present invention.
In the figure: 1. semicircular ring 2, minimum inner diameter surface 3 and groove
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples.
Examples
As shown in fig. 1, the utility model relates to a high-efficient supplementary cover of pressing for packing installation, it has following characteristic:
the efficient auxiliary pressing sleeve for packing installation is integrally a circular ring and is formed by combining two symmetrical (opposite-cutting) halves (two semicircular rings 1).
The efficient auxiliary pressing sleeve for packing installation is characterized in that a groove 3 with the depth of 0.5MM is formed in the inner wall (inner diameter side) of a circular ring, and a transition chamfer angle between the inner concave surface of the groove 3 and the minimum inner diameter surface 2 of the inner wall of a semicircular ring 1 is 15-20 degrees; the minimum inner diameter surface 2 of the upper end and the lower end of the circular ring has a width of 4 MM.
This a high-efficient supplementary pressure cover for packing installation is nylon class material.
The auxiliary pressing sleeve is a circular sleeve formed by combining two symmetrical semicircular rings, and is designed into two halved halves (halved halves) which have the following functions: the installation and the dismantlement of being convenient for effectively reduce the installation degree of difficulty, reduce installation time.
This supplementary cover of pressing excavates at the inner wall middle part of circle cover and has 0.5 MM's dark recess 3, and its effect is: the contact area between the auxiliary pressing sleeve and the valve rod is effectively reduced, and the friction coefficient is reduced.
The transition chamfer angle between the inner concave surface of the groove 3 and the minimum inner diameter surface 2 of the inner wall of the semicircular ring 1 is designed to be 15-20 degrees, and the function is as follows: the packing is convenient to install, the installation difficulty is effectively reduced, and the installation time is reduced.
The width of the minimum inner diameter surface 2 at the upper end and the lower end is designed to be 4MM, and the function is as follows: the reasonable size fit of the auxiliary pressing sleeve and the valve rod is guaranteed, so that when the auxiliary pressing sleeve is used for installing the packing, the packing is convenient to install, the installation difficulty is effectively reduced, and the installation time is shortened.
This supplementary cover of pressing adopts nylon class plastics material, and its benefit is: the hardness of the nylon plastic is far lower than that of the metal valve rod and the shell, so that the valve rod and the shell can be effectively protected from being damaged; and the nylon plastic is not easy to rust and easy to store, and the use cost is saved.
In a word, the utility model discloses a high-efficient supplementary cover of pressing for packing installation compares with current supplementary cover of pressing for packing installation, has following advantage:
1. because the two halves of the opening type auxiliary gland are adopted, the auxiliary gland can be taken out from the mounting groove more easily, the auxiliary gland sleeve does not need to be removed completely in the mounting process, and the mounting time can be effectively reduced.
2. Excavation recess 3 in the inner wall middle part of circle cover can effectively reduce the area of contact of supplementary pressure cover and valve rod, reduces coefficient of friction, reduces the installation degree of difficulty and time.
3. The hardness of the nylon plastic is far lower than that of the metal valve rod and the shell, so that the valve rod and the shell can be effectively protected from being damaged; and the nylon plastic is not easy to rust and easy to store, and the use cost is saved.
Claims (7)
1. The utility model provides a high-efficient supplementary cover of pressing for packing installation which characterized in that, this supplementary cover of pressing wholly is a ring, is formed by two semicircular ring combinations of symmetry.
2. The efficient auxiliary pressing sleeve for packing installation according to claim 1, wherein a groove is formed on the inner wall of the ring.
3. The efficient auxiliary pressing sleeve for packing installation according to claim 2, wherein the efficient auxiliary pressing sleeve for packing installation is provided with a groove with a depth of 0.4-0.6MM on the inner wall of the circular ring, and the transition chamfer between the inner concave surface of the groove and the minimum inner diameter surface of the inner wall of the circular ring is 15-20 °.
4. The efficient auxiliary pressing sleeve for packing installation according to claim 3, wherein a groove with a depth of 0.5MM is formed on the inner wall of the ring.
5. The efficient auxiliary pressing sleeve for packing installation according to claim 1, 2, 3 or 4, wherein the efficient auxiliary pressing sleeve for packing installation is made of nylon materials.
6. The efficient auxiliary pressing sleeve for packing installation according to claim 1, 2, 3 or 4, wherein the width of the minimum inner diameter surface of the upper end and the lower end of the circular ring of the efficient auxiliary pressing sleeve for packing installation is 3-5 MM.
7. The efficient auxiliary pressing sleeve for packing installation according to claim 6, wherein the width of the minimum inner diameter surface of the upper end and the lower end of the circular ring of the efficient auxiliary pressing sleeve for packing installation is 4 MM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920586707.3U CN209875091U (en) | 2019-04-26 | 2019-04-26 | A high-efficient supplementary cover of pressing for packing installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920586707.3U CN209875091U (en) | 2019-04-26 | 2019-04-26 | A high-efficient supplementary cover of pressing for packing installation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209875091U true CN209875091U (en) | 2019-12-31 |
Family
ID=68962390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920586707.3U Active CN209875091U (en) | 2019-04-26 | 2019-04-26 | A high-efficient supplementary cover of pressing for packing installation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209875091U (en) |
-
2019
- 2019-04-26 CN CN201920586707.3U patent/CN209875091U/en active Active
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