CN216051090U - Pressure-resistant clamp for plastic pipe - Google Patents
Pressure-resistant clamp for plastic pipe Download PDFInfo
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- CN216051090U CN216051090U CN202121775199.7U CN202121775199U CN216051090U CN 216051090 U CN216051090 U CN 216051090U CN 202121775199 U CN202121775199 U CN 202121775199U CN 216051090 U CN216051090 U CN 216051090U
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- anchor clamps
- retainer plate
- clamp
- pressure
- gland
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Abstract
The utility model discloses a plastic pipe pressure-resistant clamp. Withstand voltage anchor clamps include top anchor clamps and end anchor clamps, top anchor clamps top is provided with discharge valve, end anchor clamps bottom is provided with quick change coupler, wherein, top anchor clamps with end anchor clamps all include the gland and set up interior retainer plate and outer retainer plate on the gland, interior retainer plate with form the accommodation space who holds the tubular product pipe wall between the outer retainer plate, interior retainer plate with be provided with the back taper structure on the face of tubular product contact, the tubular product outer wall with be provided with the elastic washer between the outer retainer plate, be provided with the clamp on the outer retainer plate outer wall. The pressure-resistant clamp is used for sealing and clamping a plurality of positions where the side wall of the pipe enters in the longitudinal direction and the axial direction, the sealing strength is high, and when a pressure-resistant blasting test is carried out, the phenomenon that liquid leakage at the gland is caused, and the normal operation and accuracy of the test are influenced is avoided.
Description
Technical Field
The utility model belongs to the technical field of pipe pressure-resistant test equipment, and particularly relates to a plastic pipe pressure-resistant clamp.
Background
A special clamp for a pipe pressure-resistant blasting test (hereinafter referred to as a pressure-resistant clamp) is an A-type plastic pipe pressure-resistant test clamp capable of firmly clamping a pipe, and is a key auxiliary tool of a plastic pipe pressure-resistant testing machine. The pressure-resistant clamp is suitable for sealing the end face of a pipe sample in a pressure-resistant test of thermoplastic plastic pipes (such as PVC-U pipes for low-pressure water delivery irrigation, polyvinyl chloride (PVC-U) pipes for water supply, polyethylene (HDPE) pipes for water supply, high-impact PVC-M pipes for water supply, PVC-C pipes for industrial and cold water, polypropylene (PP-R) pipes for cold and hot water, heat-resistant polyethylene (PE-RT) pipes for cold and hot water and the like), is made of carbon steel and stainless steel, and needs to meet the specification of a sealing joint in 6.1 in GB/T6111 plus 2003 thermoplastic plastic pipe internal pressure resistant test method for liquid delivery.
The pressure-resistant clamp in the prior art is generally characterized in that an elastic clamping sleeve with an opening is arranged in a gland, an inner hole of the elastic clamping sleeve is provided with inverted teeth and an outer conical surface, the gland is provided with an inner conical surface, and when a screw for connecting an end cover and the gland is screwed down, the inner conical surface of the gland forces the clamping sleeve to retract inwards, so that the inverted teeth of the clamping sleeve are embedded into the outer wall of a sample to clamp the sample. The connecting screw not only plays a role in connecting the end cover and the gland, but also can press the clamping sleeve tightly to clamp the sample. However, such single-point sealing clamping on the sidewall of the pipe sample has low sealing strength. When a pressure-resistant blasting test is carried out, leakage at the end cover is often caused due to poor sealing, the detection test is difficult to continue, and the normal operation and accuracy of the test are affected. Therefore, further research is required.
SUMMERY OF THE UTILITY MODEL
The utility model aims to: aiming at the problem that the sealing performance of the pressure-resistant clamp in the prior art is not enough to cause leakage, the pressure-resistant clamp for the plastic pipe with better sealing performance is provided.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a plastic pipe pressure-resistant clamp. Withstand voltage anchor clamps include top anchor clamps and end anchor clamps, top anchor clamps top is provided with discharge valve, end anchor clamps bottom is provided with quick change coupler, wherein, top anchor clamps with end anchor clamps all include the gland and set up interior retainer plate and outer retainer plate on the gland, interior retainer plate with form the accommodation space who holds the tubular product pipe wall between the outer retainer plate, interior retainer plate with be provided with the back taper structure on the face of tubular product contact, the tubular product outer wall with be provided with the elastic washer between the outer retainer plate, be provided with the clamp on the outer retainer plate outer wall.
Further, the length of the inner fixing ring is larger than that of the outer fixing ring.
Furthermore, the gland edge symmetry is provided with two at least fixed orificess, top anchor clamps with end anchor clamps are fixed through the pull rod that passes the fixed orifices, the pull rod both ends are provided with fixation nut.
Further, the number of the fixing holes is three.
Compared with the prior art, the utility model has the beneficial effects that:
(1) the inner fixing ring and the outer fixing ring form the accommodating space, so that the top clamp and the bottom clamp can be clamped on the wall of the pipe, and the pipe can be more firmly fixed than the pipe which is only provided with the outer fixing ring;
(2) the elastic gasket has a clamping effect, the inverted cone structure has an effect of increasing friction force, under the combined action of the elastic gasket and the inverted cone structure, the top clamp and the bottom clamp are combined with the pipe more tightly, and the sealing performance of the pressure-resistant clamp is greatly improved;
(3) the clamping effect of clamp has pressed from the circumference and has pressed from both sides tight withstand voltage anchor clamps, has further increased withstand voltage anchor clamps's sealing strength.
Drawings
FIG. 1 is a schematic structural view of a plastic pipe pressure-resistant clamp according to the present invention;
fig. 2 is another schematic structural view of the plastic pipe pressure-resistant clamp of the present invention.
Description of the reference numerals
1: an exhaust valve; 2: a quick-change connector; 3: a gland; 4: an inner fixed ring; 5: an outer retainer ring; 6: a pipe; 7: an inverted cone structure; 8: an elastic washer; 9: clamping a hoop; 10: a fixing hole; 11: a pull rod; 12: and (5) fixing the nut.
Detailed Description
Various exemplary embodiments, features and aspects of the present invention will be described in detail below with reference to the accompanying drawings. In the drawings, like reference numbers can indicate functionally identical or similar elements. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present invention. It will be understood by those skilled in the art that the present invention may be practiced without some of these specific details. In some instances, methods, means, elements well known to those skilled in the art have not been described in detail so as not to obscure the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
FIG. 1 is a schematic structural view of a plastic pipe pressure-resistant clamp according to the present invention; fig. 2 is another schematic structural view of the plastic pipe pressure-resistant clamp of the present invention. As shown in fig. 1 and fig. 2, the plastic pipe pressure-resistant clamp comprises a top clamp and a bottom clamp, wherein a vent valve 1 is arranged at the top end of the top clamp, a quick-change connector 2 is arranged at the bottom of the bottom clamp, the top clamp and the bottom clamp both comprise a gland 3 and an inner fixing ring 4 and an outer fixing ring 5 which are arranged on the gland 3, a containing space for containing the pipe wall of a pipe 6 is formed between the inner fixing ring 4 and the outer fixing ring 5, an inverted cone structure 7 is arranged on the contact surface of the inner fixing ring 4 and the pipe 6, an elastic washer 8 is arranged between the outer wall of the pipe 6 and the outer fixing ring 5, and a clamp 9 is arranged on the outer wall of the outer fixing ring 5.
By adopting the technical scheme, the pressure-resistant clamp can be used for sealing and clamping a plurality of positions where the side wall of the pipe 6 enters from the longitudinal direction and the axial direction, the sealing strength is high, and when a pressure-resistant blasting test is carried out, the phenomenon that the normal operation and the accuracy of the test are influenced due to liquid leakage at the gland 3 is avoided.
The utility model relates to a plastic pipe pressure test clamp, which comprises the following steps:
firstly, covering the glands 3 of the top clamp and the bottom clamp at two ends of a pipe 6, so that the inner fixing ring 4 is inserted into the inner space of the pipe 6, the outer fixing ring 5 is positioned outside the pipe 6, and the glands 3 are clamped at two ends of the pipe 6; and the clamp 9 is only clamped on the outer wall of the outer fixing ring 5 to clamp the pipe 6. At the in-process of screwing up clamp 9, elastic washer 8 presss from both sides tight tubular product 6, and back taper structure 7 guarantees that tubular product 6 does not take place relative displacement with anchor clamps in the testing process in inserting tubular product 6.
Further, the length of interior retainer plate 4 is greater than the length of outer retainer plate 5, increases the area of contact of interior retainer plate 4 and tubular product 6 for back taper structure 7 is inseparabler with tubular product 6's combination.
Further, the edge of the gland 3 is symmetrically provided with at least two fixing holes 10, the top clamp and the bottom clamp are fixed through a pull rod 11 penetrating through the fixing holes 10, and fixing nuts 12 are arranged at two ends of the pull rod 11. The top clamp and the bottom clamp are firmly connected together by the pull rod 11, and the gland 3 is further fixed from the end face, so that the whole pressure-resistant clamp is better in air tightness.
Further, the number of the fixing holes 10 is three. The three fixing holes 10 are uniformly and symmetrically arranged around the pipe 6 and are of triangular stable structures, so that the sealing performance is more stable.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and shall be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (4)
1. The utility model provides a withstand voltage anchor clamps of plastics tubular product, includes top anchor clamps and end anchor clamps, top anchor clamps top is provided with discharge valve, end anchor clamps bottom is provided with quick change coupler, a serial communication port, top anchor clamps with end anchor clamps all include the gland and set up interior retainer plate and outer retainer plate on the gland, interior retainer plate with form the accommodation space who holds the tubular product pipe wall between the outer retainer plate, interior retainer plate with be provided with the back taper structure on the face of tubular product contact, the tubular product outer wall with be provided with the elastic washer between the outer retainer plate, be provided with the clamp on the outer retainer plate outer wall.
2. A pressure clamp as recited in claim 1, wherein the length of said inner retainer ring is greater than the length of said outer retainer ring.
3. A pressure-proof fixture as claimed in claim 1, wherein the edge of the gland is symmetrically provided with at least two fixing holes, the top fixture and the bottom fixture are fixed by a pull rod passing through the fixing holes, and fixing nuts are provided at both ends of the pull rod.
4. A pressure clamp as claimed in claim 3, wherein the number of the fixing holes is three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121775199.7U CN216051090U (en) | 2021-07-30 | 2021-07-30 | Pressure-resistant clamp for plastic pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121775199.7U CN216051090U (en) | 2021-07-30 | 2021-07-30 | Pressure-resistant clamp for plastic pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216051090U true CN216051090U (en) | 2022-03-15 |
Family
ID=80617815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121775199.7U Active CN216051090U (en) | 2021-07-30 | 2021-07-30 | Pressure-resistant clamp for plastic pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216051090U (en) |
-
2021
- 2021-07-30 CN CN202121775199.7U patent/CN216051090U/en active Active
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