Pressure detection mechanism for self-positioning cable bridge

Abstract

The invention discloses a self-positioning type pressure detection mechanism for a cable bridge, and belongs to the technical field of pressure detection.The self-positioning type pressure detection mechanism comprises a supporting frame, a bearing table is fixedly installed in the middle of the lower end of the supporting frame and used for placing a cable bridge to be detected, and a power air cylinder is fixedly installed in the middle of the upper end of the supporting frame; a power air cylinder is installed in the bearing table, a pressure applying plate is fixedly connected to the telescopic end of the power air cylinder, a refrigerating component and a heating component are installed in the bearing table, flow guide pipes are installed on the refrigerating component and the heating component correspondingly, and the flow guide pipes on the refrigerating component and the heating component are connected with a central pipe. The flow guide pipes on the refrigerating component and the heating component are provided with control valves, and the central pipe is connected with an air outlet structure through a conveying hose. According to the pressure detection mechanism for the self-positioning cable bridge, when the cable bridge is detected, the compression resistance of the cable bridge in different temperature environments can be conveniently simulated, and the accuracy of the detection result of the compression resistance of the cable bridge is improved.

Description

Technical Field

[0001] The invention relates to the technical field of pressure detection, in particular to a pressure detection mechanism for a self-positioning cable tray. Background Art

[0002] As an important cable support and protection device, cable trays are increasingly used in various engineering projects. The quality and performance of cable trays are directly related to the safety and stability of engineering projects. Therefore, when processing cable trays, corresponding pressure detection structures are usually used to test the cable trays.

[0003] For example, the Chinese patent with the announcement date of 2023-03-24, the name of which is: A cable tray compression detection device, and the announcement number is: CN218725285U, which includes a base, two groups of first sliders, two groups of pointers, a shell, a pressing device, a driving device, two groups of second sliders, two groups of brackets and two groups of support rollers, a first slide groove is arranged inside the base, two groups of first sliders are arranged to slide left and right in the first slide groove, an opening is arranged at the front end of the first slide groove, two groups of pointers are respectively installed on the front side walls of the two groups of first sliders through the opening, and a size scale is arranged on the front side wall of the base, the bottom end of the shell is connected to the top end of the base, the pressing device is installed at the top end of the shell, and a second slide groove is arranged in the shell; The above-mentioned prior art has the following technical problems: when the existing pressure resistance detection device performs pressure detection on the cable tray, it is not convenient to simulate the pressure resistance of the cable tray at different temperatures. Temperature changes will affect the thermal expansion coefficient of the tray material, thereby affecting the stress condition and structural strength of the tray, thereby reducing the detection effect of the pressure detection device.

[0004] Therefore, we propose a pressure detection mechanism for a self-positioning cable tray to solve the above-mentioned problems. Summary of the invention

[0005] The purpose of the present invention is to provide a self-positioning pressure detection mechanism for a cable tray, so as to solve the problem raised by the above background technology that the existing pressure detection devices on the market are not convenient for simulating the pressure resistance of the cable tray at different temperatures when performing pressure detection on the cable tray, and temperature changes will affect the thermal expansion coefficient of the tray material, thereby affecting the stress condition and structural strength of the tray, thereby reducing the detection effect of the pressure detection device.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a pressure detection mechanism for a self-positioning cable tray, comprising a support frame, a bearing platform is fixedly installed in the middle of the lower end of the support frame, and the bearing platform is used to place the cable tray to be detected, a power cylinder is fixedly installed in the middle of the upper end of the support frame, and the telescopic end of the power cylinder is fixedly connected to a pressure plate, a refrigeration component and a heating component are installed inside the bearing platform, and the refrigeration component and the heating component are both equipped with guide pipes, the guide pipes on the refrigeration component and the heating component are interconnected with a central pipe, and the guide pipes on the refrigeration component and the heating component are both equipped with control valves, the central pipe is interconnected with an air outlet structure through a transmission hose, and the air outlet structure is installed on a reciprocating screw, and the reciprocating screw is fixed on the output end of the servo motor.

[0007] Preferably, air pumps are installed inside the refrigeration component and the heating component, and a refrigerator is arranged above the air pump inside the refrigeration component, while a heater is arranged above the air pump inside the heating component.

[0008] By adopting the above technical solution, hot air or cold air can be blown into the central tube through the guide tube by turning on the fan.

[0009] Preferably, the air outlet structure includes a positioning vertical plate, an adjusting block, a vortex spring, a clamping rod, a first magnetic block, a side baffle, a second magnetic block, an air outlet head, a built-in spring and a compression cross bar, and the lower end of the positioning vertical plate is installed on the reciprocating screw rod, the positioning vertical plate is installed with an adjusting block, and a vortex spring providing a reset elastic force is installed on the outer side of the middle rotating shaft of the adjusting block, the clamping rod is fixedly installed on the middle rotating shaft of the adjusting block, and the end of the clamping rod is fixedly connected to the first magnetic block, the side of the adjusting block is provided with a side baffle, and the side baffle is fixed to the support frame, the side of the side baffle close to the adjusting block is fixedly installed with the second magnetic block, the middle of the adjusting block is penetrated by an air outlet head, and the air outlet head is interconnected with the inside of the adjusting block through the built-in spring, the end of the air outlet head away from the supporting platform is fixedly installed with a compression cross bar, and the air outlet head is connected to the transmission hose.

[0010] By adopting the above technical solution and providing a built-in spring, the air outlet head can be reset and rebound after moving on the adjusting block.

[0011] Preferably, the positioning plate and the reciprocating screw are threadedly connected, and the lower end of the positioning plate can slide on the support frame.

[0012] By adopting the above technical solution, the positioning upright plate slides on the support frame, thereby preventing the positioning upright plate from rotating synchronously with the reciprocating screw rod.

[0013] Preferably, the adjustment block forms a rotation connection structure with the upper end of the positioning vertical plate through a rotating shaft in the middle.

[0014] By adopting the above technical solution, the air outlet head can be rotated synchronously by adjusting the rotation of the block on the positioning vertical plate, thereby increasing the blowing range of the air outlet head and making it possible to evenly heat or cool the cable tray.

[0015] Preferably, the first magnetic block at the end of the clamping rod has the same magnetic properties as the second magnetic block on the side baffle, and a plurality of second magnetic blocks are evenly distributed on the side baffle at equal intervals.

[0016] By adopting the above technical solution, the first magnetic block at the end of the clamping rod and the second magnetic block on the side baffle plate move closer to and farther from each other, so that the clamping rod can drive the adjusting block to rotate.

[0017] Preferably, the cross section of the air outlet head is set to a "T"-shaped structure, and the interior of the air outlet head is set to a hollow structure.

[0018] By adopting the above technical solution, after the air flow enters the interior of the air outlet head, the air flow can be blown toward the cable tray to be inspected.

[0019] Preferably, a driving frame is arranged above the pressure-bearing cross bar, and the driving frame is fixedly mounted on the side of the pressure plate.

[0020] By adopting the above technical solution, the driving frame can be moved downward synchronously by the movement of the pressure plate, thereby squeezing the compressed cross bar.

[0021] Preferably, the lower end of the driving frame is arranged as an inclined surface on one side facing the compressed cross bar, and the end of the compressed cross bar facing the driving frame is arranged as a spherical end.

[0022] By adopting the above technical solution, the spherical end of the compressed cross bar can be squeezed by utilizing the beveled edge through the downward movement of the driving frame.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows: the pressure detection mechanism for the self-positioning cable tray can conveniently simulate the compressive performance of the cable tray under different temperature environments when testing the cable tray, thereby improving the accuracy of the test results of the compressive performance of the cable tray; 1. It is equipped with refrigeration components and heating components. When the air pump is turned on, hot or cold air can be transported to the inside of the air outlet through the guide pipe, the central pipe and the transmission hose. The hot or cold air blown toward the cable tray through the air outlet can heat or cool the cable tray, so as to simulate the compression effect of the cable tray under different temperature environments; 2. A reciprocating screw is provided, and the rotation of the reciprocating screw can make the threaded positioning vertical plate reciprocate, and the reciprocating movement of the positioning vertical plate can drive the air outlet head to move synchronously, and the movement of the air outlet head can make the cable tray evenly heated or cooled. At the same time, after the positioning vertical plate moves, the distance between the first magnetic block at the end of the clamping rod and the second magnetic block on the side baffle plate is changed, so that the clamping rod can drive the adjusting block to reciprocate, and the reciprocating movement of the adjusting block can make the air outlet head on it rotate synchronously, thereby further improving the heating effect of the cable tray and avoiding local overheating of the cable tray and affecting the pressure detection result.

[0024] 3. An air outlet is provided. When the pressure plate moves downward, the driving frame on its side can move synchronously. After the driving frame moves, it can squeeze the spherical end of the compressed cross bar, thereby moving the compressed cross bar and the air outlet toward the cable tray. The cable tray on the bearing platform can be automatically clamped and positioned through the movement of the air outlet; 4. An air outlet head is provided, which can realize normal air blowing heating or air blowing cooling, and can also realize the positioning of the cable tray by using the air outlet head. A single component is used to realize two different functions, avoiding the need for an additional clamping mechanism on the detection device, reducing the number of parts on the detection device, and facilitating subsequent maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the front three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the structure of the power cylinder and the pressure plate of the present invention; Figure 3 It is a schematic diagram of the structure of the first magnetic block and the side baffle of the present invention; Figure 4 It is a schematic diagram of the structure of the support platform and the central tube of the present invention; Figure 5 It is a schematic diagram of the structure of the refrigeration component and the heating component of the present invention; Figure 6 For the present invention Figure 3 The enlarged structural diagram at A in the middle; Figure 7 This is a schematic diagram of the positioning vertical plate and the adjustment block structure of the present invention; Figure 8 It is a schematic diagram of the structure of the adjustment block and the vortex spring of the present invention; Fig. 9 It is a schematic diagram of the air outlet head and the built-in spring structure of the present invention.

[0026] In the figure: 1. support frame; 2. bearing platform; 3. power cylinder; 4. pressure plate; 5. refrigeration component; 6. heating component; 7. guide tube; 8. center tube; 9. control valve; 10. transmission hose; 11. air outlet structure; 111. positioning vertical plate; 112. adjustment block; 113. vortex spring; 114. clamping rod; 115. first magnetic block; 116. side baffle; 117. second magnetic block; 118. air outlet head; 119. pressure cross bar; 110. built-in spring; 12. reciprocating screw; 13. servo motor; 14. drive frame. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Example 1: Please refer to Figure 1-Figure 9 When the existing pressure resistance detection device performs pressure detection on the cable tray, it is not convenient to simulate the pressure resistance of the cable tray at different temperatures. The temperature change will affect the thermal expansion coefficient of the tray material, thereby affecting the stress state and structural strength of the tray, thereby reducing the detection effect of the pressure detection device. In order to solve this technical problem, the following technical contents are disclosed in this embodiment: a pressure detection mechanism for a self-positioning cable tray, including a support frame 1, a bearing platform 2 is fixedly installed at the middle of the lower end of the support frame 1, and the bearing platform 2 is used to place the cable tray to be detected, and the middle of the upper end of the support frame 1 A power cylinder 3 is fixedly installed, and the telescopic end of the power cylinder 3 is fixedly connected to a pressure plate 4. A refrigeration component 5 and a heating component 6 are installed inside the support platform 2, and a guide pipe 7 is installed on the refrigeration component 5 and the heating component 6. The guide pipes 7 on the refrigeration component 5 and the heating component 6 are interconnected with a central pipe 8, and the guide pipes 7 on the refrigeration component 5 and the heating component 6 are installed with a control valve 9. The central pipe 8 is connected to an air outlet structure 11 through a transmission hose 10, and the air outlet structure 11 is installed on a reciprocating screw 12, and the reciprocating screw 12 is fixed on the output end of a servo motor 13. Air pumps are installed inside the refrigeration component 5 and the heating component 6, and a refrigerator is arranged above the air pump inside the refrigeration component 5, while a heater is arranged above the air pump inside the heating component 6. The air outlet structure 11 includes a positioning vertical plate 111, an adjustment block 112, a vortex spring 113, a clamping rod 114, a first magnetic block 115, a side baffle 116, a second magnetic block 117, an air outlet head 118, a built-in spring 110 and a compressed cross bar 119, and the lower end of the positioning vertical plate 111 is installed on the reciprocating screw 12.

[0029] When it is necessary to perform a pressure test on the cable tray, place the cable tray on the supporting platform 2. When it is necessary to test the pressure resistance of the cable tray in a high temperature or low temperature environment, the following content takes the high temperature environment test as an example. Close the control valve 9 on the guide tube 7 above the refrigeration component 5, and open the control valve 9 on the guide tube 7 above the heating component 6. At this time, turn on the fan and the heater, and blow air by turning on the air pump. After the air pump blows, the air flow is heated after passing through the heater. The heated air flow passes through the guide tube 7, the center tube 8 and the transmission hose 10 and enters the interior of the air outlet head 118. After the hot air flow enters the interior of the air outlet head 118, the air flow is blown toward the cable tray, and the cable tray can be heated by using the blown hot air flow. Then turn on the servo motor 13. After the servo motor 13 is turned on, it can make The reciprocating screw 12 rotates, and after the reciprocating screw 12 rotates, the threaded positioning plate 111 can be reciprocated. The reciprocating movement of the positioning plate 111 can drive the adjustment block 112 to drive the air outlet head 118 to move synchronously. The reciprocating movement of the air outlet head 118 can increase the blowing range of the cable tray, so that the cable tray can be evenly heated. The refrigeration environment detection is the same as the heating detection method. It is only necessary to open the control valve 9 on the guide pipe 7 above the refrigeration component 5, close the control valve 9 on the guide pipe 7 above the heating component 6, and repeat the above operation. When the ambient temperature of the cable tray is adjusted, turn on the power cylinder 3. After the power cylinder 3 is turned on, the pressure plate 4 can be moved downward, and the movement of the pressure plate 4 can be used to perform a pressure resistance test on the cable tray.

[0030] Embodiment 2: The technical content disclosed in this embodiment is a further improvement made on the basis of the above-mentioned embodiment 1. The following technical contents are disclosed in this embodiment: an adjusting block 112 is installed on the positioning vertical plate 111, and a vortex spring 113 providing a reset elastic force is installed on the outer side of the middle rotating shaft of the adjusting block 112; a clamping rod 114 is fixedly installed on the middle rotating shaft of the adjusting block 112, and the end of the clamping rod 114 is fixedly connected to a first magnetic block 115; a side baffle plate 116 is provided on the side of the adjusting block 112, and the side baffle plate 116 is fixed on the support frame 1; a second magnetic block 117 is fixedly installed on the side of the side baffle plate 116 close to the adjusting block 112; an air outlet head 118 is installed through the middle of the adjusting block 112, and the air outlet head 118 is interconnected with the inside of the adjusting block 112 through the built-in spring 110; a compression cross bar 119 is fixedly installed on the end of the air outlet head 118 away from the supporting platform 2, and the air outlet head 118 is interconnected with the transmission hose 10. The positioning plate 111 and the reciprocating screw 12 are threadedly connected, and the lower end of the positioning plate 111 can slide on the support frame 1. The adjustment block 112 forms a rotating connection structure with the upper end of the positioning plate 111 through the rotating shaft in the middle. The first magnetic block 115 at the end of the clamping rod 114 has the same magnetic properties as the second magnetic block 117 on the side baffle 116, and there are multiple second magnetic blocks 117 evenly distributed on the side baffle 116 at equal intervals. The cross section of the air outlet head 118 is set as a "T"-shaped structure, and the interior of the air outlet head 118 is set as a hollow structure. A driving frame 14 is set above the pressure cross bar 119, and the driving frame 14 is fixedly mounted on the side of the pressure plate 4. The lower end of the driving frame 14 is set as an inclined surface facing the side of the pressure cross bar 119, and the end of the pressure cross bar 119 facing the driving frame 14 is set as a spherical end.

[0031] When the positioning vertical plate 111 reciprocates, the clamping rod 114 on the central rotating shaft of the adjusting block 112 can move synchronously. When the first magnetic block 115 on the clamping rod 114 and the second magnetic block 117 on the side baffle 116 approach each other, the repulsive magnetic force between the first magnetic block 115 and the second magnetic block 117 can make the clamping rod 114 and the adjusting block 112 rotate on the positioning vertical plate 111. When the first magnetic block 115 on the clamping rod 114 and the second magnetic block 117 on the side baffle 116 move away from each other, the adjusting block 112 rotates on the positioning vertical plate 111. 112 is reset and rebounded under the action of the vortex spring 113. The reset regulating block 112 can drive the air outlet head 118 to reset. Therefore, the regulating block 112 can also drive the air outlet head 118 to reciprocate as the positioning vertical plate 111 moves, so as to further improve the blowing range of the cable tray, so that the cable tray can be heated evenly, and the uneven heating of the cable tray can be avoided to affect the final detection result. At the same time, when the cable tray temperature is adjusted and tested, the positioning vertical plate 111 is moved to the initial position, and the dynamic After the force cylinder 3 controls the pressure plate 4 to move downward, it can drive the driving frame 14 to move synchronously. After the driving frame 14 moves, it can use the inclined surface to squeeze the spherical end of the pressure cross bar 119. After the pressure cross bar 119 is compressed, its air outlet head 118 can move toward the direction of the cable bridge. Through the movement of the air outlet head 118, the cable bridge can be automatically clamped and fixed to prevent the cable bridge from deviating during detection. After the subsequent pressure plate 4 continues to move downward to apply pressure to the cable bridge, the pressure plate 4 continues to move and the pressure cross bar 119 The straight edge contacts the spherical end of the compressed cross bar 119 at the end of the air outlet head 118. At this time, the compressed cross bar 119 can always fix the cable tray without affecting the fixation of the cable tray due to the continued downward movement of the pressure plate 4. The air outlet head 118 can realize normal air blowing heating or air blowing cooling, and at the same time, the air outlet head 118 can also realize the positioning of the cable tray. A single component is used to realize two different functions, avoiding the need for an additional clamping mechanism on the detection device, reducing the number of parts on the detection device, and facilitating subsequent maintenance.

[0032] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0033] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pressure detection mechanism for a self-positioning cable tray, comprising a support frame (1), a bearing platform (2) is fixedly installed in the middle of the lower end of the support frame (1), and the bearing platform (2) is used to place the cable tray to be detected, and a power cylinder (3) is fixedly installed in the middle of the upper end of the support frame (1), and the telescopic end of the power cylinder (3) is fixedly connected to a pressure plate (4), characterized in that: Also includes: A refrigeration component (5) and a heating component (6) are installed inside the support platform (2), and a flow guide pipe (7) is installed on the refrigeration component (5) and the heating component (6), the flow guide pipe (7) on the refrigeration component (5) and the heating component (6) are connected to the central pipe (8), and the flow guide pipe (7) on the refrigeration component (5) and the heating component (6) are installed with a control valve (9), the central pipe (8) is connected to the air outlet structure (11) through a transmission hose (10), and the air outlet structure (11) is installed on a reciprocating screw (12), and the reciprocating screw (12) is fixed to the output end of the servo motor (13).

2. A pressure detection mechanism for a self-positioning cable tray according to claim 1, characterized in that: An air pump is installed inside both the refrigeration component (5) and the heating component (6), and a refrigerator is arranged above the air pump inside the refrigeration component (5), while a heater is arranged above the air pump inside the heating component (6).

3. A pressure detection mechanism for a self-positioning cable tray according to claim 1, characterized in that: The air outlet structure (11) comprises a positioning vertical plate (111), an adjusting block (112), a vortex spring (113), a clamping rod (114), a first magnetic block (115), a side baffle (116), a second magnetic block (117), an air outlet head (118), a built-in spring (110) and a pressure cross bar (119), wherein the lower end of the positioning vertical plate (111) is mounted on the reciprocating screw (12), the adjusting block (112) is mounted on the positioning vertical plate (111), and a vortex spring (113) providing a restoring elastic force is mounted on the outer side of the middle rotating shaft of the adjusting block (112), and the clamping rod (114) is fixedly mounted on the middle rotating shaft of the adjusting block (112), and the clamping rod The end of the adjusting block (114) is fixedly connected to a first magnetic block (115), a side baffle (116) is arranged on the side of the adjusting block (112), and the side baffle (116) is fixed on the support frame (1), a second magnetic block (117) is fixedly installed on the side of the side baffle (116) close to the adjusting block (112), an air outlet head (118) is installed through the middle of the adjusting block (112), and the air outlet head (118) is connected to the inside of the adjusting block (112) through a built-in spring (110), a compression cross bar (119) is fixedly installed on the end of the air outlet head (118) away from the supporting platform (2), and the air outlet head (118) is connected to the transmission hose (10).

4. A pressure detection mechanism for a self-positioning cable tray according to claim 3, characterized in that: The positioning upright plate (111) and the reciprocating screw rod (12) are threadedly connected, and the lower end of the positioning upright plate (111) is capable of sliding on the support frame (1).

5. A pressure detection mechanism for a self-positioning cable tray according to claim 3, characterized in that: The adjusting block (112) forms a rotating connection structure with the upper end of the positioning vertical plate (111) via a rotating shaft in the middle.

6. A pressure detection mechanism for a self-positioning cable tray according to claim 3, characterized in that: The first magnetic block (115) at the end of the clamping rod (114) has the same magnetic properties as the second magnetic block (117) on the side baffle (116), and a plurality of second magnetic blocks (117) are evenly distributed at equal intervals on the side baffle (116).

7. A pressure detection mechanism for a self-positioning cable tray according to claim 3, characterized in that: The cross section of the air outlet head (118) is configured as a "T"-shaped structure, and the interior of the air outlet head (118) is configured as a hollow structure.

8. The pressure detection mechanism for a self-positioning cable tray according to claim 1, characterized in that: A driving frame (14) is arranged above the pressure-bearing crossbar (119), and the driving frame (14) is fixedly mounted on the side of the pressure plate (4).

9. A pressure detection mechanism for a self-positioning cable tray according to claim 3, characterized in that: The side of the lower end of the driving frame (14) facing the compression cross bar (119) is arranged as an inclined surface, and the end of the compression cross bar (119) facing the driving frame (14) is arranged as a spherical end.

Images