Testing instrument for performance of modified PPR low-temperature-resistant pipeline

Abstract

The utility model relates to the technical field of modified PPR (pentatricopeptide repeats) low-temperature-resistant pipelines, and discloses a modified PPR low-temperature-resistant pipeline performance testing instrument which comprises a low-temperature environment box and a supporting device. According to the utility model, the low-temperature environment box can be used for carrying out low-temperature test on the modified PPR low-temperature-resistant pipeline, the supporting device can be used for supporting the modified PPR low-temperature-resistant pipeline, the positioning assembly, a plurality of adjusting grooves and a plurality of inserting grooves are used for fixing the placing disc after moving to different heights, the limiting assembly can be used for limiting the modified PPR low-temperature-resistant pipeline, shaking is avoided, and the working efficiency is improved. Limiting plates with different hole diameters can be conveniently replaced through a clamping assembly, the effects that the modified PPR low-temperature-resistant pipeline is prevented from shaking when a machine body is collided, and the height of a containing disc for supporting the modified PPR low-temperature-resistant pipeline can be rapidly adjusted are achieved, and the problems that a low-temperature environment box cannot limit the modified PPR low-temperature-resistant pipeline, and the low-temperature environment box cannot limit the modified PPR low-temperature-resistant pipeline are solved. And the height of the placing disc cannot be quickly adjusted.

Description

Technical Field

[0001] The utility model belongs to the technical field of modified PPR low-temperature resistant pipes, and in particular relates to a testing instrument for the performance of modified PPR low-temperature resistant pipes. Background Art

[0002] Modified PPR low-temperature resistant pipe is a special type of pipe material. It is made by adding a certain proportion of chemical modifiers and antioxidants to polypropylene resin, thereby improving the material's low-temperature resistance and durability. Modified PPR pipes usually have good heat resistance, chemical corrosion resistance, easy welding and good mechanical properties.

[0003] In order to evaluate the durability of modified PPR low-temperature resistant pipes under low-temperature conditions, a low-temperature environmental chamber is often used to simulate a low-temperature environment, and the modified PPR low-temperature resistant pipes are placed in a low-temperature environment for a long time for testing. Although the existing low-temperature environmental chamber can perform low-temperature tests on modified PPR low-temperature resistant pipes, it cannot limit the modified PPR low-temperature resistant pipes. When the low-temperature environmental chamber is collided, the modified PPR low-temperature resistant pipes will shake, thereby affecting the test effect, and the height of the placement plate supporting the modified PPR low-temperature resistant pipes cannot be quickly adjusted. The problems existing in the above technology are: the low-temperature environmental chamber cannot limit the modified PPR low-temperature resistant pipes, and the height of the placement plate cannot be quickly adjusted. Utility Model Content

[0004] In view of the problems existing in the prior art, the utility model provides a testing instrument for the performance of a modified PPR low-temperature resistant pipe, which can overcome the above problems or at least partially solve the above problems.

[0005] The utility model is implemented as follows: a test instrument for the performance of a modified PPR low-temperature resistant pipe, comprising a low-temperature environment box and a supporting device, wherein the low-temperature environment box comprises a body, a controller, a bottom plate and a cabinet door, wherein the bottom of the body is fixedly connected to the left side of the top of the bottom plate, the bottom of the controller is fixedly connected to the right side of the body, the bottom of the controller is fixedly connected to the right side of the top of the bottom plate, the left side of the cabinet door is movably connected to the left side of the front side of the body, the supporting device is located inside the body, the supporting device comprises two first brackets, two second brackets and a plurality of placement plates, the tops and bottoms of the two first brackets and the two second brackets are respectively fixedly connected to the top and bottom of the inside of the body, the rear sides of the plurality of placement plates are plug-connected to the inside of the two second brackets, and the side of the plurality of placement plates close to the two first brackets is fitted with the two first brackets;

[0006] The low temperature environment box is used for low temperature testing of modified PPR low temperature resistant pipes;

[0007] The supporting device is used to support the modified PPR low-temperature resistant pipe.

[0008] In order to improve the effect of testing the modified PPR low-temperature resistant pipe, preferably, positioning components are provided on the left and right sides of the front side of the placement plate, and fixed blocks are fixedly connected to the left and right sides of the front side of the top of the placement plate. Cavities are opened on the tops of the two fixed blocks, and clamping components are provided inside the two cavities. A limiting component is provided on the top of the placement plate. Through the two positioning components, the placement plate can be moved and fixed to the two first brackets and the two second brackets. The two clamping components facilitate the replacement of the limit plate, and the moving range of the modified PPR low-temperature resistant pipe can be controlled by the limit component.

[0009] In order to fix the placement plate to the first bracket, preferably, the positioning assembly includes a positioning block, a movable plate, a supporting block, a return spring, a matching block and two baffles, the front side of the positioning block is fixedly connected to the left side of the rear side of the movable plate, the right side inside the movable plate is movably connected to the surface of the supporting block, the rear sides of the supporting block and the matching block are both fixedly connected to the front side of the placement plate, the left side of the return spring is fixedly connected to the front side of the right side of the movable plate, the right side of the return spring is fixedly connected to the left side of the matching block, and the right sides of the opposite ends of the two baffles are respectively fixedly connected to the top and bottom of the matching block, through the positioning assembly, the rear side of the positioning block can be moved to the inside of the first bracket, and the return spring plays a fixing and rebounding role, so that the movable block and the positioning block can automatically rebound to their original positions after moving.

[0010] In order to facilitate the replacement of the limit plates of limit holes with different apertures, preferably, the clamping assembly includes a clamping block, a pull rod, a control block and an extrusion spring. The surfaces of the clamping block, pull rod and control block are all movably connected to the inside of the cavity. The front side of the clamping block is fixedly connected to the left side of the rear side of the pull rod, the right side of the control block is fixedly connected to the left side of the pull rod, the left side of the control block is slidingly connected to the left side of the inner wall of the cavity, the rear side of the extrusion spring is fixedly connected to the left side of the front side of the pull rod, and the front side of the extrusion spring is fixedly connected to the front side of the inner wall of the cavity. Through the clamping assembly, the rear side of the clamping block can pass through the fixed block and the connecting block in sequence and extend to the interior of the connecting block. The extrusion spring plays a fixing and rebounding role, so that the pull rod, the clamping block and the control block can automatically rebound to their original position after moving.

[0011] In order to be able to limit the modified PPR low-temperature resistant pipe, preferably, the limiting assembly includes a limiting plate, a plurality of limiting holes and two connecting blocks, the limiting plate is located on the top of the placing plate, and the plurality of limiting holes are opened inside the limiting plate and are evenly distributed, the tops of the rear sides of the two connecting blocks are respectively fixedly connected to the left and right sides of the front side of the limiting plate, and the modified PPR low-temperature resistant pipe can be inserted into the limiting hole through the limiting plate, thereby limiting the modified PPR low-temperature resistant pipe through the plurality of limiting holes to prevent the modified PPR low-temperature resistant pipe from shaking due to collision of the machine body.

[0012] In order to enable the placement plate to be adjusted to different heights and fixed, preferably, a plurality of adjustment grooves are opened on the front sides of the two first brackets and are evenly distributed, and a plurality of plug-in grooves are opened on the front sides of the two second brackets and are evenly distributed. Through the plurality of adjustment grooves and the plurality of plug-in grooves, the interiors of the plurality of adjustment grooves can be plug-connected with the surface of the positioning block, and the interiors of the plurality of plug-in grooves can be plug-connected with the rear side of the placement plate, so that the placement plate can be fixed after adjusting the position according to the height of the modified PPR low-temperature resistant pipe.

[0013] In order to limit the moving range of the limit plate, preferably, two cylinders are fixedly connected to the left and right sides of the top of the placing plate, and the surfaces of the multiple cylinders are respectively plugged into the left and right sides inside the limit plate. Through the multiple cylinders, the moving range of the limit plate can be controlled to avoid shaking, which makes it easier for the limit plate to drive the two connecting blocks to plug into the two fixed blocks.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] The utility model provides structural components such as a low-temperature environment box, a machine body, a controller, a bottom plate, a cabinet door, a supporting device and a first bracket. The low-temperature environment box can be used to perform low-temperature tests on the modified PPR low-temperature resistant pipes, the supporting device can support the modified PPR low-temperature resistant pipes, and the positioning assembly, multiple adjustment slots and multiple plug-in slots can be used to move the placement plate to different heights and then fix them. The limit assembly can be used to limit the modified PPR low-temperature resistant pipes to avoid shaking, and the clamping assembly can be used to facilitate replacement of limit plates with different apertures, thereby preventing the modified PPR low-temperature resistant pipes from shaking when the machine body is hit, and the height of the placement plate supporting the modified PPR low-temperature resistant pipes can be quickly adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of a three-dimensional structure provided by an embodiment of the utility model;

[0017] Figure 2 It is a three-dimensional structural diagram of a supporting device provided by an embodiment of the utility model;

[0018] Figure 3 It is an exploded perspective view of a local structure provided by an embodiment of the utility model;

[0019] Figure 4 The utility model embodiment provides Figure 3 Enlarged view of point A in the middle;

[0020] Figure 5 It is a three-dimensional structural diagram of a positioning assembly provided by an embodiment of the utility model;

[0021] Figure 6 It is a three-dimensional structural diagram of a connection block provided by an embodiment of the utility model;

[0022] Figure 7 It is a three-dimensional structural diagram of the first bracket and the second bracket provided by an embodiment of the utility model.

[0023] In the figure: 1. low temperature environment box; 101. body; 102. controller; 103. bottom plate; 104. cabinet door; 2. supporting device; 201. first bracket; 202. second bracket; 203. placement plate; 3. positioning assembly; 301. positioning block; 302. movable plate; 303. supporting block; 304. reset spring; 305. matching block; 306. baffle; 4. fixing block; 5. cavity; 6. clamping assembly; 601. clamping block; 602. pull rod; 603. control block; 604. extrusion spring; 7. limiting assembly; 701. limiting plate; 702. limiting hole; 703. connecting block; 8. adjusting slot; 9. plug-in slot; 10. cylinder. DETAILED DESCRIPTION

[0024] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0025] The structure of the utility model is described in detail below in conjunction with the accompanying drawings.

[0026] like Figures 1 to 7As shown, a test instrument for the performance of a modified PPR low-temperature resistant pipe provided by an embodiment of the utility model comprises a low-temperature environment box 1 and a supporting device 2. The low-temperature environment box 1 comprises a body 101, a controller 102, a bottom plate 103 and a cabinet door 104. The bottom of the body 101 is fixedly connected to the left side of the top of the bottom plate 103, the bottom of the controller 102 is fixedly connected to the right side of the body 101, the bottom of the controller 102 is fixedly connected to the right side of the top of the bottom plate 103, the left side of the cabinet door 104 is movably connected to the left side of the front side of the body 101, the supporting device 2 is located inside the body 101, the supporting device 2 comprises two first brackets 201, two second brackets 202 and a plurality of placement trays 203, the two first brackets 201 and the two second The top and bottom of the bracket 202 are fixedly connected to the top and bottom of the body 101 respectively, the rear sides of the multiple placement plates 203 are plug-connected to the inside of the two second brackets 202, and the side of the multiple placement plates 203 close to the two first brackets 201 is in contact with the two first brackets 201; the low-temperature environment box 1 is used for low-temperature testing of modified PPR low-temperature resistant pipes; the supporting device 2 is used to support the modified PPR low-temperature resistant pipes. In order to improve the effect of testing the modified PPR low-temperature resistant pipes, positioning components 3 are provided on the left and right sides of the front side of the placement plate 203, and the left and right sides of the front side of the top of the placement plate 203 are fixedly connected with fixing blocks 4, and the tops of the two fixing blocks 4 are provided with cavities 5, and the insides of the two cavities 5 are provided with clamping Component 6, a limiting component 7 is set on the top of the placement plate 203, and the two positioning components 3 can make the placement plate 203 move to a position and then be fixed to the two first brackets 201 and the two second brackets 202. The two clamping components 6 are convenient for replacing the limiting plate 701, and the moving range of the modified PPR low-temperature resistant pipe can be controlled by the limiting component 7. In order to fix the placement plate 203 to the first bracket 201, the positioning component 3 includes a positioning block 301, a movable plate 302, a support block 303, a return spring 304, a matching block 305 and two baffles 306. The front side of the positioning block 301 is fixedly connected to the left side of the rear side of the movable plate 302, and the right side inside the movable plate 302 is movably connected to the surface of the support block 303. The support block 30 The rear sides of the locating block 301 and the matching block 305 are fixedly connected to the front side of the placing plate 203, the left side of the reset spring 304 is fixedly connected to the front side of the right side of the movable plate 302, the right side of the reset spring 304 is fixedly connected to the left side of the matching block 305, and the right sides of the opposite ends of the two baffles 306 are respectively fixedly connected to the top and bottom of the matching block 305. Through the positioning component 3, the rear side of the positioning block 301 can be moved to the inside of the first bracket 201, and the reset spring 304 plays a fixing and rebounding role, so that the movable block and the positioning block 301 can automatically rebound to the original position after moving. In order to facilitate the replacement of the limiting plate 701 with different aperture limiting holes 702, the clamping component 6 includes a clamping block 601, a pull rod 602, a control block 603 and an extrusion spring 604.The surfaces of the clamping block 601, the pull rod 602 and the control block 603 are all movably connected to the inside of the cavity 5. The front side of the clamping block 601 is fixedly connected to the left side of the rear side of the pull rod 602, the right side of the control block 603 is fixedly connected to the left side of the pull rod 602, the left side of the control block 603 is slidably connected to the left side of the inner wall of the cavity 5, the rear side of the extrusion spring 604 is fixedly connected to the left side of the front side of the pull rod 602, and the front side of the extrusion spring 604 is fixedly connected to the front side of the inner wall of the cavity 5. Through the clamping assembly 6, the rear side of the clamping block 601 can sequentially penetrate the fixed block 4 and the connecting block 703 and extend to the connecting block 7 03, the extrusion spring 604 plays a fixing and rebounding role, so that the pull rod 602, the clamping block 601 and the control block 603 can automatically rebound to the original position after moving. In order to limit the modified PPR low-temperature resistant pipe, the limiting component 7 includes a limiting plate 701, a plurality of limiting holes 702 and two connecting blocks 703. The limiting plate 701 is located at the top of the placement plate 203. The plurality of limiting holes 702 are all opened in the limiting plate 701 and are evenly distributed. The top of the rear side of the two connecting blocks 703 is fixedly connected to the left and right sides of the front side of the limiting plate 701 respectively. Through the limiting plate 701, the modified The modified PPR low-temperature resistant pipe can be inserted into the limiting hole 702, so that the modified PPR low-temperature resistant pipe is limited by the multiple limiting holes 702 to prevent the body 101 from being hit and causing the modified PPR low-temperature resistant pipe to shake. In order to enable the placement plate 203 to adjust different heights and fix, the front sides of the two first brackets 201 are each provided with a plurality of adjustment grooves 8 and are evenly distributed, and the front sides of the two second brackets 202 are each provided with a plurality of plug-in grooves 9 and are evenly distributed. Through the multiple adjustment grooves 8 and the multiple plug-in grooves 9, the interiors of the multiple adjustment grooves 8 can be plugged and connected with the surface of the positioning block 301. The interior of the multiple plug-in slots 9 can be plugged and connected with the rear side of the placement plate 203, so that the placement plate 203 can be fixed after adjusting the position according to the height of the modified PPR low-temperature resistant pipe. In order to limit the movement range of the limit plate 701, two cylinders 10 are fixedly connected to the left and right sides of the top of the placement plate 203. The surfaces of the multiple cylinders 10 are plugged and connected with the left and right sides of the limit plate 701 respectively. Through the multiple cylinders 10, the movement range of the limit plate 701 can be controlled to avoid shaking, which is convenient for the limit plate 701 to drive the two connection blocks 703 to plug and connect with the two fixed blocks 4.

[0027] The working principle of this utility model:

[0028] When it is necessary to perform a low-temperature test on the modified PPR low-temperature resistant pipe, the modified PPR low-temperature resistant pipe is inserted into the interior of the limit plate 701, the cabinet door 104 is closed, and the temperature inside the body 101 is controlled by the controller 102. When it is necessary to adjust the height of the placement plate 203, the movable plate 302 is pushed to the right by manpower, and the movable plate 302 rotates with the support block 303 as the center of the circle, so that the movable block drives the positioning block 301 to rotate forward, and the positioning block 301 is moved out from the interior of the first bracket 201. At this time, the placement plate 203 can be moved forward, so that the placement plate 203 is moved out from the interior of the second bracket 202, and moved up or down. After moving to the required position, the placement plate 203 is moved backward so that the placement plate 203 is plugged and connected with the second bracket 202. The movable plate 302 The movement will cause the return spring 304 to deform. After the movable plate 302 is released, the movable plate 302 drives the positioning block 301 to rebound to the inside of the first bracket 201 under the elastic action of the return spring 304, so that the placement plate 203 is fixed. When the limit plate 701 needs to be replaced, the pull rod 602 is pushed forward to move the clamping block 601 out of the inside of the connecting block 703. At this time, the limit plate 701 can be moved upward and disengaged from the multiple cylinders 10, and the limit plate 701 drives the connecting block 703 to fit the top of the fixed block 4. The movement of the pull rod 602 will cause the extrusion spring 604 to deform. After the pull rod 602 is released, the pull rod 602 drives the clamping block 601 to rebound to the inside of the connecting block 703 under the elastic action of the extrusion spring 604, so that the limit plate 701 is fixed.

[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0030] The above description is only a preferred embodiment of the utility model, and does not constitute any form of limitation to the utility model. Although the utility model has been disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this patent will not depart from the scope of the technical solution of the utility model.

Claims

1. A test instrument for the performance of a modified PPR low-temperature resistant pipe, comprising a low-temperature environment box (1) and a supporting device (2), characterized in that: The low-temperature environment box (1) comprises a body (101), a controller (102), a bottom plate (103) and a cabinet door (104); the bottom of the body (101) is fixedly connected to the left side of the top of the bottom plate (103); the bottom of the controller (102) is fixedly connected to the right side of the body (101); the bottom of the controller (102) is fixedly connected to the right side of the top of the bottom plate (103); the left side of the cabinet door (104) is movably connected to the left side of the front side of the body (101); and the supporting device (2) is located inside the body (101). The supporting device (2) comprises two first brackets (201), two second brackets (202) and a plurality of placement plates (203); the tops and bottoms of the two first brackets (201) and the two second brackets (202) are respectively fixedly connected to the top and bottom of the inside of the machine body (101); the rear sides of the plurality of placement plates (203) are plug-connected to the inside of the two second brackets (202); and the sides of the plurality of placement plates (203) close to the two first brackets (201) are in contact with the two first brackets (201); The low temperature environment box (1) is used for low temperature testing of modified PPR low temperature resistant pipes; The supporting device (2) is used to support the modified PPR low-temperature resistant pipe.

2. A test instrument for the performance of modified PPR low-temperature resistant pipes as claimed in claim 1, characterized in that: Positioning components (3) are provided on both the left and right sides of the front side of the placement plate (203); fixed blocks (4) are fixedly connected to both the left and right sides of the front side of the top of the placement plate (203); cavities (5) are provided at the tops of the two fixed blocks (4); clamping components (6) are provided at the insides of the two cavities (5); and a limiting component (7) is provided at the top of the placement plate (203).

3. A test instrument for the performance of modified PPR low-temperature resistant pipes as claimed in claim 2, characterized in that: The positioning assembly (3) comprises a positioning block (301), a movable plate (302), a supporting block (303), a return spring (304), a matching block (305) and two baffles (306); the front side of the positioning block (301) is fixedly connected to the left side of the rear side of the movable plate (302); the right side inside the movable plate (302) is movably connected to the surface of the supporting block (303); the rear sides of the supporting block (303) and the matching block (305) are both fixedly connected to the front side of the placement plate (203); the left side of the return spring (304) is fixedly connected to the front side of the right side of the movable plate (302); the right side of the return spring (304) is fixedly connected to the left side of the matching block (305); and the right sides of the opposite ends of the two baffles (306) are fixedly connected to the top and bottom of the matching block (305), respectively.

4. A test instrument for the performance of modified PPR low-temperature resistant pipes as claimed in claim 2, characterized in that: The clamping assembly (6) comprises a clamping block (601), a pull rod (602), a control block (603) and an extrusion spring (604); the surfaces of the clamping block (601), the pull rod (602) and the control block (603) are all movably connected to the inside of the cavity (5); the front side of the clamping block (601) is fixedly connected to the left side of the rear side of the pull rod (602); the right side of the control block (603) is fixedly connected to the left side of the pull rod (602); the left side of the control block (603) is slidably connected to the left side of the inner wall of the cavity (5); the rear side of the extrusion spring (604) is fixedly connected to the left side of the front side of the pull rod (602); and the front side of the extrusion spring (604) is fixedly connected to the front side of the inner wall of the cavity (5).

5. A test instrument for the performance of modified PPR low-temperature resistant pipes as claimed in claim 2, characterized in that: The limiting assembly (7) comprises a limiting plate (701), a plurality of limiting holes (702) and two connecting blocks (703); the limiting plate (701) is located on the top of the placement plate (203); the plurality of limiting holes (702) are all opened inside the limiting plate (701) and are evenly distributed; the tops of the rear sides of the two connecting blocks (703) are respectively fixedly connected to the left and right sides of the front side of the limiting plate (701).

6. The test instrument for the performance of modified PPR low temperature resistant pipes according to claim 1, characterized in that: The front sides of the two first brackets (201) are each provided with a plurality of evenly distributed adjustment slots (8), and the front sides of the two second brackets (202) are each provided with a plurality of evenly distributed plugging slots (9).

Images