Polyethylene pipe finished product detection device

Abstract

The utility model discloses a polyethylene pipe finished product detection device, which relates to the technical field of resistance detection, and comprises a resistance detection table and an example polyethylene pipe arranged above the resistance detection table, and a resistance meter is arranged on the front side surface of the resistance detection table. A self-positioning mechanism used for synchronously fixing electrodes at the two ends of an example polyethylene pipe is arranged above the resistance detection table, the distance between Y-shaped frames can be adjusted by rotating a bidirectional lead screw so as to adapt to resistance detection of example polyethylene pipes with different lengths, and the resistance detection accuracy is improved through the arrangement of a ruler. The device can help detection personnel to quickly judge the distance between the two electrodes, and can meet the subsequent detection requirements only through one-time adjustment when the same-size sample polyethylene pipe is detected without repeating the steps such as tape measurement and marking every time, thereby further reducing the operation procedures of the personnel and improving the detection working efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of resistance detection, in particular to a finished product detection device for polyethylene pipes. Background Art

[0002] A polyethylene pipe is a pipe made of polyethylene material, used for transporting substances such as liquids, gases or solid particles. To ensure that the quality and performance of polyethylene pipes meet relevant standards and requirements, common finished product detection items for polyethylene pipes include dimension detection, physical property detection, chemical resistance detection, antistatic resistance detection, etc. Among them, a resistance detector is used for resistance detection.

[0003] In some industrial and production environments, static electricity can easily cause fires, explosions or other safety risks. For some polyethylene pipes that need to be used in electrical equipment or systems, their flame retardant and antistatic properties are directly related to the safety of electrical equipment or systems. Therefore, through resistance detection, it can be ensured that polyethylene pipes have good antistatic properties to prevent the accumulation and discharge of static electricity from causing danger;

[0004] In many industries and testing methods, to ensure a unified standard when testing by different manufacturers or laboratories, for the polyethylene pipe sample tubes to be detected, it is necessary to ensure that their length is not less than one meter. The purpose is to keep the distance between the two electrodes at a certain distance, usually one meter, during the antistatic resistance test, so as to eliminate external influences, avoid electric field interference, and ensure the accuracy and reliability of test results. However, when actually conducting the detection, when the length of the polyethylene pipes used by some manufacturers for detection does not reach one meter, it is necessary to adaptively change the distance between the two electrodes, and the changed electrode distance still needs to be kept relatively far to ensure the accuracy of the detection;

[0005] In the traditional detection process, usually, the detection personnel need to measure the polyethylene pipe and then mark both ends of the polyethylene pipe to determine the distance between the two electrodes. This operation process is relatively complex. Especially when detecting a large number of polyethylene pipes of the same size, these steps need to be continuously repeated, consuming a large amount of time and human resources, which is not conducive to realizing an efficient automated production and detection process.

[0006] Therefore, a finished product detection device for polyethylene pipes is proposed to solve the above problems. Content of the Utility Model

[0007] To achieve the above object, the utility model provides the following technical solution: A finished product detection device for polyethylene pipes, comprising: a resistance detection table and an example polyethylene pipe arranged above the resistance detection table. A resistance detector is arranged on the front side of the resistance detection table, and a self-positioning mechanism for synchronously fixing the electrodes at both ends of the example polyethylene pipe is arranged above the resistance detection table;

[0008] Above the resistance detection table, a synchronous adjustment mechanism is provided for adapting to example polyethylene pipes of different lengths;

[0009] The self - positioning mechanism includes an auxiliary groove body fixedly connected to the top surface of the resistance detection table. A sliding groove is opened on the front side wall of the auxiliary groove body. A scale is fixedly connected to the outer surface of the auxiliary groove body near the sliding groove. Symmetrically sliding connections are provided in the auxiliary groove body with support boxes. Rectangular chambers are opened in the interiors of the support boxes. Sliders are slidably connected in the rectangular chambers of the support boxes. Closed - loop grooves are opened on the surfaces of the sliders away from the center of the auxiliary groove body. Shaft - rods with shafts are slidably connected in the closed - loop grooves. The top ends of the shaft - rods with shafts are provided with sliding shafts. The diameter of the sliding shafts at the top ends of the shaft - rods with shafts is adapted to the closed - loop grooves. The bottom ends of the shaft - rods with shafts are rotatably connected to the centers of the bottom ends of the support boxes.

[0010] Preferably, a spring is fixedly connected to the bottom end of the slider. The bottom end of the spring is fixedly connected to the inner wall of the bottom end of the support box. A Y - shaped frame is fixedly connected to the center of the top end of the slider. A hole adapted to the lower diameter of the Y - shaped frame is penetrated and opened at the top end of the support box. The lower end of the Y - shaped frame is slidably connected in the hole at the top end of the support box. The example polyethylene pipe abuts against the Y - shaped frame.

[0011] Preferably, an extension plate is fixedly connected to the middle part of the Y - shaped frame. An opener is inserted through a connecting rod on the extension plate fixedly connected to the middle part of the Y - shaped frame. The opener is arranged to be opened in half. A circle of channels is opened on the inner wall of the opener. The opener is made of insulating plastic material. Insulating rubber pads are arranged on both sides of the channels of the opener. An arc - shaped plate is inserted through a connecting rod on one side of the support box close to the opener. The arc - shaped plate is located vertically below the opener.

[0012] Preferably, the synchronous adjustment mechanism includes collars symmetrically slidably connected in the sliding groove. One end of each collar close to the support box is fixedly connected to the support box. And the collars are commonly threadedly connected to a bidirectional lead screw. One end of the bidirectional lead screw is fixedly connected to a dial.

[0013] Preferably, threads are opened at both the left and right ends of the bidirectional lead screw. The bidirectional lead screw and the collars together form a ball screw structure.

[0014] Compared with the prior art, the present utility model provides a finished product detection device for polyethylene pipes, having the following beneficial effects:

[0015] 1. The distance between the Y-shaped frames can be adjusted by rotating the bidirectional lead screw to adapt to the resistance detection of sample polyethylene tubes of different lengths. The setting of the scale can help the detection personnel to quickly determine the distance between the two electrodes. At the same time, it has size memory, and can effectively indicate to the staff to replace the sample polyethylene tube with a similar size without repeated manual marking, thereby reducing the tediousness of replacing the sample polyethylene tube with a large size difference and requiring a large adjustment, further reducing the operation process of personnel and improving the detection efficiency;

[0016] 2. Through the setting of the opener and closeer, it is only necessary to manually place the electrodes into the opener and closeer grooves in advance, and then press down to realize that the electrodes in the openers on both sides are automatically wrapped on the outer wall of the polyethylene pipe. There is no need to manually wrap and fix them one by one, which improves work efficiency and reduces the time required for manual operation one by one, making the detection process faster and more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a main perspective structural diagram of the utility model;

[0018] Figure 2 This is a three-dimensional internal structure diagram of the support box in the utility model in a cut-away state;

[0019] Figure 3 It is a three-dimensional structural diagram of the relative positions of the opener and the arc plate in the utility model;

[0020] Figure 4 It is a partial three-dimensional structural diagram of the sleeve ring and the bidirectional lead screw in the utility model.

[0021] In the figure:

[0022] 1. Resistance test bench; 101. Example polyethylene tube; 102. Ruler;

[0023] 201, auxiliary trough; 202, slide; 203, support box; 204, slider; 205, closed loop groove; 206, shaft rod; 207, spring; 208, Y-shaped frame; 209, opener and closer; 210, curved plate;

[0024] 301, collar; 302, bidirectional lead screw; 303, dial. DETAILED DESCRIPTION

[0025] 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.

[0026] The present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0027] Embodiment of the present utility model:

[0028] To solve the problems mentioned in the technical solution, an embodiment of the present application provides a finished polyethylene pipe detection device, including: a resistance detection table 1 and an exemplary polyethylene pipe 101 disposed above the resistance detection table 1. A resistance meter is provided on the front side of the resistance detection table 1, and a self-positioning mechanism for synchronously fixing the electrodes at both ends of the exemplary polyethylene pipe 101 is provided above the resistance detection table 1;

[0029] The self-positioning mechanism includes an auxiliary groove body 201 fixedly connected to the top surface of the resistance detection table 1. A chute 202 is opened on the front side wall of the auxiliary groove body 201. A scale 102 is fixedly connected to the outer surface of the auxiliary groove body 201 near one side of the chute 202. Support boxes 203 are symmetrically and slidably connected inside the auxiliary groove body 201. Rectangular chambers are opened inside the support boxes 203. Sliders 204 are slidably connected inside the rectangular chambers of the support boxes 203. Closed-loop grooves 205 are opened on the surfaces of the sliders 204 away from the center of the auxiliary groove body 201. Shaft rods 206 with shafts are slidably connected inside the closed-loop grooves 205;

[0030] Please refer to Figure 2 As shown, a spring 207 is fixedly connected to the bottom end of the slider 204. The bottom end of the spring 207 is fixedly connected to the bottom inner wall of the support box 203. A Y-shaped frame 208 is fixedly connected to the center of the top end of the slider 204. The Y-shaped frame 208 is integrally Y-shaped. A hole adapted to the lower diameter of the Y-shaped frame 208 is penetrated and opened at the top end of the support box 203. The lower end of the Y-shaped frame 208 is slidably connected inside the hole at the top end of the support box 203. The exemplary polyethylene pipe 101 abuts against the Y-shaped frame 208;

[0031] Please refer to Figure 3 As shown, an extension plate is fixedly connected to the middle part of the Y-shaped frame 208. An opener 209 is inserted through a connecting rod on the extension plate fixedly connected to the middle part of the Y-shaped frame 208. The opener 209 is arranged to be half-opened and half-closed. A circle of channels is opened on the inner wall of the opener 209. The opener 209 is made of insulating plastic material. Insulating rubber pads are provided on both sides of the channels of the opener 209. An arc-shaped plate 210 is inserted through a connecting rod on one side of the support box 203 close to the opener 209. The arc-shaped plate 210 is located vertically below the opener 209.

[0032] Among them:

[0033] Please refer to Figure 2 As shown, a sliding shaft is provided at the top end of the shaft rod 206 with a shaft. The diameter of the sliding shaft at the top end of the shaft rod 206 with a shaft is adapted to the closed-loop groove 205. The bottom end of the shaft rod 206 with a shaft is rotatably connected to the center of the bottom end of the support box 203;

[0034] The inner diameter of the arc-shaped plate 210 is equal to the outer diameter of the opener 209 in the closed state.

[0035] Further embodiments:

[0036] Please refer to Figures 1 to 4 As shown, above the resistance detection table 1, there is a synchronous adjustment mechanism for adapting to polyethylene pipes 101 of different lengths as examples;

[0037] The synchronous adjustment mechanism includes collar rings 301 symmetrically and slidably connected in the chute 202. One end of the collar ring 301 close to the support box 203 is fixedly connected to the support box 203, and the collar rings 301 are commonly threadedly connected to a bidirectional lead screw 302. One end of the bidirectional lead screw 302 is fixedly connected to a dial 303.

[0038] Among them:

[0039] Please refer to Figure 1 As shown, both the left and right ends of the bidirectional lead screw 302 are provided with threads, and the thread directions at the left and right ends of the bidirectional lead screw 302 are opposite to each other. The bidirectional lead screw 302 and the collar rings 301 together form a ball screw structure.

[0040] The working principle of all the contents in the above embodiments is as follows:

[0041] In the initial state: The slider 204 is not pressed downward, the spring 207 is not compressed, and the sliding shaft at the top of the shaft rod 206 is engaged with the lower center of the closed-loop groove 205.

[0042] The following is the working process of the synchronous adjustment mechanism:

[0043] Before detection, the example polyethylene pipe 101 needs to be placed in an environment of 25°C and a relative humidity of 60%-70% for at least two hours. Then, mark the electrode spacing at both ends according to factors such as the diameter, length, and material of the example polyethylene pipe 101. Subsequently, use a small amount of conductive adhesive to closely attach the two electrodes to the outer surface of the example polyethylene pipe 101. Then, connect the leads to the high resistance meter respectively, apply a test voltage of 50V and wait for one minute. The above are the conventional steps for the resistance detection of the example polyethylene pipe 101;

[0044] Referring to the above steps, adjust the distance between the Y-shaped frames 208 on both sides according to the length of the exemplary polyethylene pipe 101. Since the support boxes 203 on both sides are fixedly connected to the collar 301 on both sides respectively, and the collars 301 on both sides are respectively threadedly connected to the left and right ends of the bidirectional lead screw 302, and the thread directions at the left and right ends of the bidirectional lead screw 302 are opposite to each other. Therefore, when the inspector rotates the dial 303 on the bidirectional lead screw 302 clockwise, the support boxes 203 on both sides can be driven to move synchronously and oppositely in the auxiliary groove 201, thereby shortening the distance between the Y-shaped frames 208 and the opener 209 on both sides. When the inspector rotates the dial 303 on the bidirectional lead screw 302 counterclockwise, the support boxes 203 on both sides can be driven to move synchronously outward in the auxiliary groove 201, thereby extending the distance between the Y-shaped frames 208 and the opener 209 on both sides. And a scale 102 is provided on the surface of the auxiliary groove 201 close to the bidirectional lead screw 302. During the adjustment of the bidirectional lead screw 302, the distance between the openers 209 on both sides can be observed with reference to the scale 102, so as to ensure a standard distance between the two electrodes on both sides;

[0045] Therefore, by rotating the bidirectional lead screw 302, the distance between the Y-shaped frames 208 can be adjusted to adapt to the resistance detection of the exemplary polyethylene pipes 101 with different lengths. And through the setting of the scale 102, the inspector can quickly judge the distance between the two electrodes, and at the same time has size memory, and can effectively indicate the staff to replace the exemplary polyethylene pipe 101 with a relatively close size without repeated manual marking, thereby reducing the cumbersome process of large-scale adjustment required to replace the exemplary polyethylene pipe 101 with a large size difference, further reducing the personnel operation process and improving the detection work efficiency.

[0046] Please refer to the above working process Figure 1 、 Figure 2 and Figure 4 。

[0047] The following is the working process of the self-positioning mechanism:

[0048] After the length adjustment of the exemplary polyethylene pipe 101 is completed, the tester places the electrodes into the channels of the opening and closing devices 209 on the left and right sides respectively, and then places the exemplary polyethylene pipe 101 in the Y-shaped brackets 208 at both ends for support. At this time, the tester applies a conductive adhesive to the surface of the exemplary polyethylene pipe 101 corresponding to the opening and closing devices 209 on both sides. Subsequently, the tester presses down on the left and right ends of the exemplary polyethylene pipe 101. At this time, the Y-shaped brackets 208 and the sliders 204 sliding in the support box 203 will move downward synchronously, and the spring 207 will be compressed. The shafted rod 206 sliding in the closed-loop groove 205 will pivot around the connection point at the center of the bottom of the support box 203 and move half a circle along the trajectory of the closed-loop groove 205. At this time, the sliding shaft at the top of the shafted rod 206 will engage with the center of the upper end of the closed-loop groove 205, and the upward stretching force of the spring 207 will push the slider 204 upward, making the shafted rod 206 in a taut state and preventing it from loosening and slipping, thereby fixing the slider 204. Moreover, since the opening and closing device 209 is hinged to the Y-shaped bracket 208 through an extension plate and a connecting rod, when the Y-shaped bracket 208 moves downward, the opening and closing device 209 will move downward synchronously. During the downward movement of the opening and closing device 209, it will be resisted by the arc-shaped plate 210. Since the outer diameter of the opening and closing device 209 in the closed state is equal to the inner diameter of the arc-shaped plate 210, as the opening and closing device 209 moves downward, the outer circle of the opening and closing device 209 will completely fit with the inner circle of the arc-shaped plate 210. At this time, the opening and closing device 209 is in a closed state, and the electrodes placed in the opening and closing device 209 will be tightly wrapped on the conductive adhesive of the exemplary polyethylene pipe 101. Subsequently, the lead wires are connected to the electrodes on both sides respectively to detect the exemplary polyethylene pipe 101. And since both the opening and closing device 209 and the arc-shaped plate 210 are fixed by plugging, when it is necessary to detect the resistance of exemplary polyethylene pipes 101 with different diameters, the opening and closing device 209 and the arc-shaped plate 210 of the same size can be quickly replaced corresponding to the diameter of the exemplary polyethylene pipe 101;

[0049] After the detection is completed, the tester can press the left and right ends of the exemplary polyethylene pipe 101 again. At this time, the shafted rod 206 engaged with the center of the upper end of the closed-loop groove 205 will continue to move along the trajectory of the inclined part at the upper end of the closed-loop groove 205 for the remaining half circle under the action of the upward rebound force of the spring 207 driving the slider 204, and finally engage with the center of the lower end of the closed-loop groove 205. Therefore, the Y-shaped bracket 208 and the opening and closing device 209 will move upward and reset to the initial position. At the same time, the arc-shaped plate 210 will no longer resist the opening and closing device 209, causing the opening and closing device 209 to reopen for the next use;

[0050] Therefore, with the setting of the opener 209, it is only necessary to manually place the electrodes into the channels of the opener 209 in advance, and then press down to automatically wrap the electrodes in the two openers 209 around the outer wall of the exemplary polyethylene pipe 101. There is no need for manual wrapping and fixing one by one, which improves the work efficiency, reduces the time required for manual operation one by one, and makes the detection process faster and more efficient.

[0051] Please refer to the above working process Figures 1 to 3 。

[0052] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "comprising an..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the element.

[0053] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A finished polyethylene pipe testing device, comprising: The resistance detection platform (1) and the exemplary polyethylene tube (101) disposed above the resistance detection platform (1) are characterized in that: A self-positioning mechanism for synchronously fixing electrodes at both ends of the example polyethylene tube (101) is provided above the resistance detection platform (1); A synchronous adjustment mechanism for adapting to polyethylene tubes (101) of different lengths is arranged above the resistance detection platform (1); The self-positioning mechanism comprises an auxiliary trough body (201) fixedly connected to the top surface of the resistance detection platform (1), a slide groove (202) is provided on the front side wall of the auxiliary trough body (201), a scale (102) is fixedly connected to the outer surface of the auxiliary trough body (201) on the side close to the slide groove (202), a support box (203) is symmetrically slidably connected inside the auxiliary trough body (201), a rectangular chamber is provided inside the support box (203), and the support box (203) is rectangular. A slider (204) is slidably connected in each of the shaped cavities, a closed-loop groove (205) is provided on one side of the slider (204) away from the center of the auxiliary groove body (201), a shaft rod (206) is slidably connected in each of the closed-loop grooves (205), a sliding shaft is provided at the top end of the shaft rod (206), the diameter of the sliding shaft at the top end of the shaft rod (206) is adapted to the closed-loop groove (205), and the bottom end of the shaft rod (206) is rotatably connected to the bottom center of the support box (203).

2. A finished polyethylene pipe inspection device according to claim 1, characterized in that: The bottom end of the slider (204) is fixedly connected to a spring (207), and the bottom end of the spring (207) is fixedly connected to the bottom inner wall of the support box (203). The top center of the slider (204) is fixedly connected to a Y-shaped frame (208). The top of the support box (203) is penetrated by a hole that is compatible with the diameter of the lower end of the Y-shaped frame (208). The lower end of the Y-shaped frame (208) is slidably connected to the hole at the top of the support box (203), and the exemplary polyethylene tube (101) is in conflict with the Y-shaped frame (208).

3. A finished polyethylene pipe inspection device according to claim 2, characterized in that: An extension plate is fixedly connected to the middle of the Y-shaped frame (208); an opener (209) is plugged into the extension plate fixedly connected to the middle of the Y-shaped frame (208) via a connecting rod; the opener (209) is arranged to be opened and closed in half; a circle of grooves is provided on the inner wall of the opener (209); the opener (209) is made of insulating plastic material; insulating rubber pads are provided on both sides of the groove of the opener (209); a curved plate (210) is plugged into the side of the support box (203) close to the opener (209) via a connecting rod; the curved plate (210) is located vertically below the opener (209).

4. A finished polyethylene pipe inspection device according to claim 1, characterized in that: The synchronous adjustment mechanism comprises a collar (301) symmetrically slidably connected in the slide groove (202); one end of the collar (301) close to the support box (203) is fixedly connected to the support box (203); and the collar (301) is threadedly connected to a bidirectional lead screw (302); one end of the bidirectional lead screw (302) is fixedly connected to a dial (303).

5. A finished polyethylene pipe inspection device according to claim 4, characterized in that: The left and right ends of the bidirectional lead screw (302) are both provided with threads, and the bidirectional lead screw (302) and the collar (301) together form a ball screw structure.

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