Heating table temperature uniformity detection device

Abstract

The utility model discloses a heating table temperature uniformity detection device, which comprises a temperature measuring mechanism, a plurality of translation mechanisms and a plurality of pressing mechanisms, and is characterized in that the temperature measuring mechanism comprises a plurality of temperature measuring pieces, and the temperature measuring pieces are placed on a table top of a heating table; each translation mechanism comprises a translation frame and a plurality of translation blocks, the translation frames are arranged at intervals and can horizontally move in the length direction of the heating table, and the translation blocks are arranged above the heating table at intervals and are in sliding connection with the translation frames; each translation block can horizontally move in the width direction of the heating table; the pressing mechanisms are detachably and fixedly connected with the translation blocks in a one-to-one correspondence mode. Compared with the prior art, the heating table temperature uniformity detection device has the advantages that the temperature measuring piece is fixed reliably, detection is more accurate, and temperature data of a plurality of positions can be collected at the same time.

Description

TECHNICAL FIELD

[0001] The utility model relates to detection equipment technical field especially relates to a heating station temperature uniformity detection device. BACKGROUND

[0002] The heating station is composed of a power supply, a temperature control unit, a heating unit and a stage for heating objects on the stage. The design and function of the heating station can vary according to specific use scenarios and requirements, but the core purpose is to provide a stable and controllable temperature environment. The heating station temperature uniformity is an important indicator of the performance of the heating station, and the heating station used for experiments, detection and industrial production (such as the heating station disclosed in application No. 201420433912.3) has high requirements for temperature uniformity. Therefore, it is necessary to use a reasonable, reliable and effective method to detect the temperature uniformity of the heating station.

[0003] Currently, the tools for detecting the temperature uniformity of the heating station mainly include handheld temperature probes, adhesive thermistors and infrared thermometers. The handheld temperature probe has the advantages of flexible use and the ability to detect the temperature of each position on the heating station at any time, but it cannot collect temperature data from multiple positions simultaneously. When manually measuring the temperature at each point, the contact area and angle of the temperature probe with the stage surface are not the same, and the temperature probe may also fluctuate due to hand shaking when measuring the temperature at the same position. Temperature uniformity detection requires a large amount of data for comparison, and the use of handheld temperature probes is very inconvenient in practical applications. Therefore, handheld temperature probes are only suitable for temporary detection of the temperature range of a specific point on the heating station. Using adhesive thermistors to detect the temperature uniformity of the heating station cannot accurately measure the temperature of the measured position, whether using high-temperature adhesive tape or high-temperature silicone adhesive. The adhesive force of high-temperature adhesive tape decreases with time and temperature, affecting the effective contact between the thermistor and the stage surface, resulting in inaccurate measurement. Using high-temperature silicone adhesive to paste the thermistor, although the adhesive force of high-temperature silicone adhesive does not decrease with time and temperature, the thermistor is easily separated from the stage during the waiting period for the silicone adhesive to solidify, resulting in inaccurate temperature measurement. At the same time, the complete coverage of the thermistor by the silicone adhesive forms a small heat preservation layer, causing the detection value to be higher. Using an infrared thermometer to detect the temperature uniformity of the heating station is safer and more convenient as it does not require direct contact with the stage surface of the heating station. However, the infrared thermometer indirectly compares the temperature values through images, and the images are greatly affected by the measurement angle, distance and surface quality of the stage. The test results can only be used as a reference for temperature distribution and cannot be directly used as detection values. SUMMARY

[0004] The utility model discloses a heating platform temperature uniformity detection device, solve the technical problem that the heating platform temperature uniformity is detected in prior art, and the technical problem that the temperature data of multiple positions cannot be collected simultaneously is solved.

[0005] In order to achieve the above technical purpose, the technical scheme of the utility model provides a heating platform temperature uniformity detection device for detecting the table surface temperature of a heating platform, comprising:

[0006] A temperature measuring mechanism comprising a plurality of temperature measuring elements, which are placed on the table surface of the heating platform;

[0007] A plurality of translation mechanisms, each comprising a translation frame and a plurality of translation blocks, each translation frame is arranged at intervals and can move horizontally along the length direction of the heating platform, each translation block is arranged at intervals above the heating platform and is slidably connected to the translation frame, and each translation block can move horizontally along the width direction of the heating platform;

[0008] A plurality of pressing mechanisms, each corresponding to a translation block and being detachably fixedly connected, for pressing or releasing the corresponding temperature measuring element.

[0009] Further, each translation frame is arranged at intervals along the length direction of the heating platform, and each translation block on each translation frame is arranged at intervals along the width direction of the heating platform.

[0010] Further, the heating platform temperature uniformity detection device further comprises a guide mechanism, the guide mechanism is arranged horizontally along the length direction of the heating platform, the bottom of each translation frame is slidably connected to the guide mechanism, and each translation block on each translation frame is slidably connected to the top of the translation frame.

[0011] Further, the guide mechanism comprises two guide assemblies, the two guide assemblies are arranged oppositely on both sides of the heating platform and are detachably fixedly connected to the heating platform, and the bottom of each translation frame is slidably connected to the two guide assemblies.

[0012] Further, the guide assembly comprises a guide rail and two stop blocks, the guide rail is arranged horizontally along the length direction of the heating platform and is detachably fixedly connected to the heating platform via screws, the two stop blocks are arranged at both ends of the guide rail and are located directly below the guide rail, and the two stop blocks are detachably fixedly connected to the heating platform via screws, and the bottom of each translation frame is slidably connected to the two guide rails.

[0013] Further, the translation frame comprises two sliders, two vertical rods and a guide rod, the two sliders are oppositely arranged on the two sides of the heating table and are in one-to-one sliding connection with the two guide rails, the two vertical rods are oppositely arranged on the two sides of the heating table, the bottoms of the two vertical rods are in one-to-one detachable fixed connection with the two sliders, the guide rod is horizontally arranged above the heating table along the width direction of the heating table and is located between the two vertical rods, the two ends of the guide rod are in one-to-one detachable fixed connection with the tops of the two vertical rods, and the translation block is in sliding connection with the guide rod.

[0014] Further, the pressing mechanism comprises a connecting block, a pressing block and an adjusting piece, the connecting block is arranged directly below the corresponding translation block, the pressing block is arranged directly below the connecting block and is in fixed connection with the bottom of the connecting block, the pressing block is of elastic structure and can withstand a temperature of 260℃, the pressing block is used for pressing or loosening the corresponding temperature measuring piece, the lower end of the adjusting piece is in detachable fixed connection with the top of the connecting block, and the upper end of the adjusting piece is in detachable fixed connection with the corresponding translation block.

[0015] Further, the adjusting piece is a screw rod, a first screw hole is formed in the translation block, a second screw hole is formed in the connecting block, the upper end of the screw rod penetrates through the first screw hole and is in threaded connection with the first screw hole, and the lower end of the screw rod extends into the second screw hole and is in threaded connection with the second screw hole.

[0016] Further, a sliding groove extending along the length direction of the guide rod is formed in the guide rod, the translation block is slidingly arranged in the sliding groove, first and second through grooves extending along the length direction of the guide rod and communicating with the sliding groove are respectively formed in the two opposite side walls of the guide rod, and the upper end of the screw rod slidingly penetrates through the first and second through grooves.

[0017] Further, the guide rod comprises a rod body and an enclosing body, the sliding groove is formed in the rod body, one side surface of the sliding groove is in open arrangement, and the enclosing body is arranged at the opening of the sliding groove and is used for sealing the opening of the sliding groove, and the enclosing body is in detachable fixed connection with the rod body through a screw.

[0018] Compared with the prior art, the beneficial effects of the utility model include: in use, multiple temperature measuring pieces are placed on the tabletop of the heating table, each translation frame is controlled to move horizontally along the length direction of the heating table, and then each translation block is controlled to move horizontally along the width direction of the heating table, so that each compression mechanism can be driven to move to the directly above corresponding temperature measuring piece, each compression mechanism is controlled in turn, so that the corresponding temperature measuring piece is compressed by the compression mechanism, the heating table is turned on, the heating table temperature is set as required, multiple temperature measuring pieces can measure the tabletop temperature of different positions of the heating table at the same time, the heating table temperature uniformity detection device is fixed reliably, detection is more accurate, and temperature data of multiple positions can be collected at the same time. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a three-dimensional structure schematic view of the heating table temperature uniformity detection device provided by the utility model when being installed on the heating table.

[0020] Figure 2 It is a three-dimensional structure schematic view of the heating table temperature uniformity detection device provided by the utility model.

[0021] Figure 3 It is a structure schematic view of the connection relationship between the single translation mechanism and the compression mechanism of the heating table temperature uniformity detection device provided by the utility model.

[0022] Figure 4 It is a structure schematic view of the connection relationship between the single guide rod and the compression mechanism of the heating table temperature uniformity detection device provided by the utility model.

[0023] Figure 5 It is a three-dimensional structure schematic view of the heating table temperature uniformity detection device provided by the utility model after the guide rod is omitted.

[0024] Figure 6 It is a structure schematic view of the connection relationship between the connecting block and the compression block of the heating table temperature uniformity detection device provided by the utility model.

[0025] In the drawing: 1 - heating table, 100 - temperature measuring mechanism, 110 - temperature measuring piece, 200 - translation mechanism, 210 - translation frame, 211 - sliding block, 212 - vertical rod, 213 - guide rod, 2131 - sliding groove, 2132 - first through groove, 2133 - second through groove, 2134 - rod body, 2135 - sealing body, 220 - translation block, 300 - compression mechanism, 310 - connecting block, 320 - compression block, 330 - adjusting piece, 400 - guide mechanism, 410 - guide assembly, 411 - guide rail, 412 - stop block. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the utility model is further described in detail below in combination with the drawings and examples.

[0027] The utility model provides a kind of heating platform temperature uniformity detection device, for detecting the platform temperature of heating platform 1, its structure as shown in Figure 1 And Figure 2 It includes temperature measuring mechanism 100, multiple translation mechanisms 200 and multiple pressing mechanisms 300, the temperature measuring mechanism 100 includes multiple temperature measuring pieces 110, the temperature measuring piece 110 is placed on the platform of heating platform 1;Each translation mechanism 200 includes translation frame 210 and multiple translation blocks 220, each translation frame 210 is spaced apart and can be moved horizontally along the length direction of heating platform 1, each translation block 220 is spaced apart above heating platform 1 and is slidably connected with translation frame 210, and each translation block 220 can be moved horizontally along the width direction of heating platform 1;Each pressing mechanism 300 is detachably fixedly connected with each translation block 220 one by one, the pressing mechanism 300 has a fixed state of being fastened with the translation block 220 and an active state of being movable up and down relative to the translation block 220, and the pressing mechanism 300 is used to press or loosen the corresponding temperature measuring piece 110.

[0028] In use, a plurality of the temperature measuring members 110 are placed on the table top of the heating table 1, the translation frame 210 is controlled to move horizontally along the length direction of the heating table 1, and then the translation block 220 is controlled to move horizontally along the width direction of the heating table 1, so as to drive the pressing mechanism 300 to move to the position above the corresponding temperature measuring member 110, and then the pressing mechanism 300 is controlled to press the corresponding temperature measuring member 110, the heating table 1 is turned on, and the temperature of the heating table 1 is set as required. The plurality of temperature measuring members 110 can simultaneously measure the temperature of the table top at different positions of the heating table 1. Compared with the handheld temperature probe and the pasted thermistor, the heating table temperature uniformity detection device fixes the temperature measuring member 110 through the pressing mechanism 300, avoids the inconvenience of one-point measurement and long waiting time of the pasted thermistor, and avoids the influence of holding force, hand shaking, and recording time on the detection result of the handheld temperature probe. The detection result of the pasted thermistor is uncontrollable, and the pasting material can form a heat preservation layer near the thermistor, which affects the detection result. The measurement value obtained by image comparison cannot guarantee the accuracy of the value. The heating table temperature uniformity detection device has reliable fixation of the temperature measuring member 110, and the temperature measuring member 110 does not form a local heat preservation layer when contacting the table top of the heating table 1, so that the detection is more accurate and the temperature data of multiple positions can be collected simultaneously.

[0029] As a preferred embodiment, please refer to Figure 1 , each translation block 220 on each translation frame 210 is arranged in the width direction of the heating table 1, so that an array of fixed points can be formed above the heating table 1, and the temperature of each position of the heating table 1 can be measured.

[0030] As a preferred embodiment, please refer to Figure 1 and Figure 2 , the heating table temperature uniformity detection device further comprises a guide mechanism 400, the guide mechanism 400 is arranged horizontally along the length direction of the heating table 1, the bottom of each translation frame 210 is slidably connected with the guide mechanism 400, and each translation block 220 on each translation frame 210 is slidably connected with the top of the translation frame 210. The movement of the translation frame 210 can be supported and guided by the guide mechanism 400, so that each translation frame 210 can move horizontally along the length direction of the heating table 1.

[0031] As a preferred embodiment, please refer to Figure 1 and Figure 2The guiding mechanism 400 comprises two guiding assemblies 410, which are oppositely arranged on two sides of the heating table 1 and are detachably fixedly connected with the heating table 1, and the bottom of each translation frame 210 is slidably connected with the two guiding assemblies 410, so that the support and guiding effect of the translation frame 210 can be improved.

[0032] As a preferred embodiment, refer to Figure 1 and Figure 2 The guiding assembly 410 comprises a guide rail 411 and two stoppers 412, the guide rail 411 is horizontally arranged along the length direction of the heating table 1 and is detachably fixedly connected with the heating table 1 through screws, the two stoppers 412 are arranged at two ends of the guide rail 411 and are located directly below the guide rail 411, and the two stoppers 412 are detachably fixedly connected with the heating table 1 through screws, the bottom of each translation frame 210 is slidably connected with the two guide rails 411, the movement of each translation frame 210 is guided by the two guide rails 411, so that each translation frame 210 can move horizontally along the length direction of the heating table 1, and the two stoppers 412 at two ends of the guide rail 411 can limit the translation frame 210 to prevent the translation frame 210 from sliding out of the guide rail 411.

[0033] As a preferred embodiment, refer to Figure 1 and Figure 2 The translation frame 210 comprises two sliding blocks 211, two vertical rods 212 and a guide rod 213, the two sliding blocks 211 are oppositely arranged on two sides of the heating table 1 and are slidably connected with the two guide rails 411 one by one, the two vertical rods 212 are oppositely arranged on two sides of the heating table 1, the bottom of each vertical rod 212 is detachably fixedly connected with the corresponding sliding block 211, the guide rod 213 is horizontally arranged above the heating table 1 along the width direction of the heating table 1 and is located between the two vertical rods 212, and the two ends of the guide rod 213 are detachably fixedly connected with the top of the two vertical rods 212 one by one, the translation block 220 is slidably connected with the guide rod 213, the movement of the translation block 220 is supported and guided by the guide rod 213, so that each translation block 220 can move horizontally along the width direction of the heating table 1.

[0034] As a preferred embodiment, refer to Figure 2 and Figure 3The pressing mechanism 300 comprises a connecting block 310, a pressing block 320 and an adjusting member 330. The connecting block 310 is arranged right below the corresponding translation block 220. The pressing block 320 is arranged right below the connecting block 310 and fixedly connected with the bottom of the connecting block 310. The pressing block 320 is of elastic structure and can withstand 260℃ temperature. The pressing block 320 is used for pressing or loosening the corresponding temperature measuring member 110. The lower end of the adjusting member 330 is detachably fixedly connected with the top of the connecting block 310. The upper end of the adjusting member 330 is detachably fixedly connected with the corresponding translation block 220. The upper end of the adjusting member 330 has a fixed state of being fastened with the translation block 220 and a movable state of being movable up and down relative to the translation block 220. The adjusting member 330 is controlled so that the upper end of the adjusting member 330 is movable downward relative to the translation block 220 until the pressing block 320 presses the corresponding temperature measuring member 110, thereby fixing the temperature measuring member 110.

[0035] As a preferred embodiment, refer to Figure 6 The pressing block 320 is of silica gel material. After the silica gel is melted, the connecting block 310 is wrapped in a mold and cooled to become a whole. Since the silica gel is resistant to high temperature and has certain elasticity, the temperature measuring member 110 can be well adhered to the table top of the heating table 1, thereby improving the measurement precision.

[0036] As a preferred embodiment, refer to Figure 3 and Figure 6 The adjusting member 330 is a screw rod. The translation block 220 is provided with a first screw hole. The connecting block 310 is provided with a second screw hole. The upper end of the screw rod passes through the first screw hole and is threadedly connected with the first screw hole. The lower end of the screw rod extends into the second screw hole and is threadedly connected with the second screw hole. The screw rod is forwardly or reversely rotated. According to the screw hole connection principle, the translation block 220 is limited by the guide rod 213. Therefore, the screw rod can be moved up and down during the forward or reverse rotation of the screw rod.

[0037] As a preferred embodiment, refer to 4 and Figure 5 The guide rod 213 is provided with a sliding groove 2131 extending along the length direction thereof. The translation block 220 is slidingly arranged in the sliding groove 2131. The two opposite side walls of the guide rod 213 are respectively provided with a first through groove 2132 and a second through groove 2133 extending along the length direction thereof and communicating with the sliding groove 2131. The upper end of the screw rod slidingly passes through the first through groove 2132 and the second through groove 2133. The movement of the translation block 220 can be guided through the sliding groove 2131, so that the translation block 220 moves more stably.

[0038] As a preferred embodiment, refer to Figure 3 and Figure 4 The guide rod 213 comprises a rod body 2134 and an enclosure 2135, the rod body 2134 is provided with the sliding groove 2131, one side of the sliding groove 2131 is provided with an opening, the first through groove 2132 is arranged on one side wall of the rod body 2134, the enclosure 2135 is arranged on the opening of the sliding groove 2131 and is used for sealing the opening of the sliding groove 2131, the enclosure 2135 is detachably and fixedly connected with the rod body 2134 through screws, and the second through groove 2133 is arranged on the enclosure 2135, so that the translation block 220 can be disassembled conveniently.

[0039] As a preferred embodiment, the temperature measuring member 110 is a thermistor, and the temperature can be measured.

[0040] As a preferred embodiment, the temperature measuring mechanism 100 further comprises a multi-channel temperature data recorder, the multi-channel temperature data recorder is electrically connected with the thermistor through lead wires, so as to obtain the temperature data measured by the thermistor, the lead wires of the thermistor are connected to the multi-channel temperature data recorder, the channels and time to be recorded are set, the heating table 1 is opened, the temperature of the heating table 1 is set as required, the multi-channel data recorder automatically records the temperature at each moment within the set channels and time, and after the test is completed, the data is exported from the multi-channel data recorder and the temperature uniformity parameter is calculated, and the detection is completed.

[0041] In order to better understand the present application, the following will be combined with Figure 1 - Figure 6 The working principle of the technical scheme of the present application is described in detail.

[0042] In use, the plurality of thermistors are placed on the table surface of the heating table 1, the translation frame 210 is controlled to move along the length direction of the guide rail 411, so that the translation frame 210 can move horizontally along the length direction of the heating table 1, then the translation block 220 is controlled to move along the length direction of the guide rod 213, so that the translation block 220 can move horizontally along the width direction of the heating table 1, and then the pressing mechanism 300 is driven to move to the position above the corresponding temperature measuring element 110, each screw rod is rotated in a forward direction, each screw rod can move downward and drive the pressing block 320 to move downward, until the pressing block 320 presses the corresponding thermistor, the lead wire of the thermistor is connected to the multi-channel temperature data recorder, the channel and time to be recorded are set, the heating table 1 is turned on, the temperature of the heating table 1 is set as required, the multi-channel data recorder automatically records the temperature at each time within the set channel and time, and the data is exported from the multi-channel data recorder and the temperature uniformity parameter is calculated after the test is completed, the detection is completed, the plurality of thermistors can simultaneously measure the temperatures of the table surfaces at different positions of the heating table 1, compared with the handheld temperature probe and the pasted thermistor, the heating table temperature uniformity detection device fixes the thermistor through the pressing mechanism 300, avoids the inconvenience that the handheld temperature probe measures and records one point at a time and the pasted thermistor needs to wait for a long solidification time, compared with the handheld temperature probe, the detection result is affected by holding force, hand shaking and recording time, compared with the pasted thermistor, the detection result is affected by uncontrollable pasting and a heat preservation layer formed near the thermistor, compared with the infrared temperature measuring instrument, the measurement value is obtained through image comparison and cannot guarantee the accuracy of the value, the heating table temperature uniformity detection device has reliable temperature measuring elements 110, the temperature measuring elements 110 do not form a local heat preservation layer when contacting the table surface of the heating table 1, the detection is more accurate, and the temperature data at multiple positions can be collected at the same time.

[0043] The heating table temperature uniformity detection device has the following beneficial effects:

[0044] (1) Compared with the handheld temperature probe and the pasted thermistor, the heating table temperature uniformity detection device fixes the thermistor through the pressing mechanism 300, avoids the inconvenience that the handheld temperature probe measures and records one point at a time and the pasted thermistor needs to wait for a long solidification time;

[0045] (2) The heating table temperature uniformity detection device can automatically record the temperature data of multiple points at each time within a set time period through the multi-channel temperature data recorder, supports data export, and is more convenient to use;

[0046] (3) Compared with the handheld temperature probe detection, the detection result is affected by the holding force, hand shaking, and non-uniform recording time, the paste type thermistor detection is affected by the uncontrollable paste result and the paste material forming a heat preservation layer near the thermistor, the infrared thermometer is affected by the measurement angle, distance and the quality of the object table surface, and the measurement value is obtained by image comparison, which cannot guarantee the accuracy of the value. The heating table temperature uniformity detection device, the temperature measuring element 110 is fixed reliably, the temperature measuring element 110 is in contact with the heating table 1 table surface and no local heat preservation layer is formed, the detection is more accurate, and the temperature data of multiple positions can be collected at the same time.

[0047] The specific implementation of the above-mentioned utility model does not constitute a limitation on the protection scope of the utility model. Any various other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the utility model claim.

Claims

1. A heating table temperature uniformity detection device for detecting a temperature of a table top of a heating table, characterized by, The application relates to a temperature measuring device for a heating table. The temperature measuring device comprises a temperature measuring mechanism, a plurality of translation mechanisms and a plurality of pressing mechanisms. The temperature measuring mechanism comprises a plurality of temperature measuring elements, which are arranged on the table top of the heating table. Each of the translation mechanisms comprises a translation frame and a plurality of translation blocks.

2. The heating table temperature uniformity detection apparatus according to claim 1, characterized by, Each of the translation blocks is arranged above the heating table and is slidably connected with the translation frame.

3. The apparatus according to claim 1, wherein Each of the pressing mechanisms is detachably connected with the corresponding translation block.

4. The heating table temperature uniformity detection apparatus according to claim 3, characterized by, The translation frame is arranged above the heating table and is slidably connected with the guide mechanism.

5. The apparatus according to claim 4, wherein The guide mechanism comprises two guide assemblies.

6. The apparatus according to claim 5, wherein Each of the guide assemblies is arranged on the two sides of the heating table and is detachably connected with the heating table.

7. The apparatus according to claim 6, wherein The guide assembly comprises a guide rail and two stoppers.

8. The apparatus according to claim 7, wherein The guide rail is arranged above the heating table and is detachably connected with the heating table. The stopper is arranged on the two ends of the guide rail and is detachably connected with the heating table. The translation frame comprises two sliding blocks, two vertical rods and a guide rod. The sliding block is arranged on the two sides of the heating table and is slidably connected with the guide rail. The vertical rod is arranged on the two sides of the heating table and is detachably connected with the sliding block. The guide rod is arranged above the heating table and is detachably connected with the vertical rod. The pressing mechanism comprises a connecting block, a pressing block and an adjusting element. The connecting block is arranged below the translation block. The pressing block is arranged below the connecting block and is fixedly connected with the bottom of the connecting block. The pressing block is made of elastic material and can resist 260 DEG C. The adjusting element is detachably connected with the top of the connecting block and the translation block. The adjusting element is a screw rod. The first screw hole is arranged on the translation block. The second screw hole is arranged on the connecting block. The upper end of the screw rod is screwed into the first screw hole. The lower end of the screw rod is screwed into the second screw hole.

9. The apparatus according to claim 8, wherein A sliding groove extending along the length direction of the guide rod is formed on the guide rod, the translation block is slidingly arranged in the sliding groove, and a first through groove and a second through groove extending along the length direction of the guide rod and communicating with the sliding groove are respectively formed on the two opposite side walls of the guide rod, and the upper end of the screw rod slidingly passes through the first through groove and the second through groove.

10. The apparatus according to claim 9, wherein The guide rod comprises a rod body and an enclosure, the sliding groove is formed on the rod body, one side of the sliding groove is open, and the enclosure is arranged at the opening of the sliding groove to block the opening of the sliding groove, and the enclosure is detachably fixedly connected with the rod body through screws.

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