A conductive foam performance detection device

Abstract

The present invention discloses a conductive foam performance detection device, which relates to the technical field of conductive foam detection, and includes: a detection base and a support base fixedly connected to the top of the detection base. Above the support base is provided a conductive foam, and above the conductive foam is provided a pressing plate. A plurality of groups of electrode plates are embedded in the bottom of the pressing plate. Each group of electrode plates has two, and the two electrode plates are symmetrically arranged with respect to the center axis of the pressing plate; a pressing assistant, located on the top of the support base, for pressing the conductive foam by the pressing plate. Through the mutual cooperation of the pressing assistant and the depth adjustment component, the present invention can realize the intermittent multiple position adjustment function of the pressing plate by reciprocating the hydraulic cylinder, so as to cooperate with an external conductive performance detector to detect the conductive foam in different pressing states, thereby improving the accuracy of the detection data and improving the overall practicality of the device.

Description

Technical Field

[0001] The present invention relates to the technical field of conductive foam detection, and specifically to a device for detecting the performance of conductive foam. Background Art

[0002] Conductive foam is made by wrapping conductive cloth around flame-retardant sponge. After a series of treatments, it has good surface conductivity and can be easily fixed on the device to be shielded with adhesive tape. In the production process of conductive foam, a special detection device is needed to detect its conductive performance.

[0003] During the process of detecting the conductive performance of the existing conductive foam, it is necessary to first attach two positive and negative electrode plates to the top of the conductive foam, and then start detecting the conductive performance of the conductive foam by energizing the two electrode plates through a detection device. During the detection process, the detection device will apply voltage or current to the electrode plates and measure key parameters such as their resistance value or conductivity. However, the existing conductive foam is generally in a compressed state after installation, and the existing detection only simply detects it in its soft state, unable to perform performance detection on conductive foam in different compression states in sequence, thus reducing the accuracy of the detection data. For this reason, we provide a device for detecting the performance of conductive foam to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a device for detecting the performance of conductive foam in order to solve the problem that it is impossible to detect the conductive foam in different compression states during the performance detection process.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A device for detecting the performance of conductive foam, comprising: a detection base and a support base fixedly connected to the top of the detection base, a conductive foam is arranged above the support base, a pressing plate is arranged above the conductive foam, multiple groups of electrode plates are embedded in the bottom of the pressing plate, each group of electrode plates has two, and the two electrode plates are symmetrically arranged with respect to the center axis of the pressing plate; a pressing assistant, located on the top of the support base, used to form pressing on the conductive foam by the pressing plate; a rotation adjustment mechanism, located on both sides of the conductive foam, used to turn over the conductive foam, and the rotation adjustment mechanism includes two sliding seats arranged on the top of the detection base; a tensioning assembly, located inside the sliding seats, used to cooperate with the pressing assistant to form tension on the conductive foam.

[0006] As a further solution of the present invention: the clamping assistant includes a bracket fixedly connected to the top of the support seat, a hydraulic cylinder is installed on the top of the bracket, the output end of the hydraulic cylinder passes through the inner side of the bracket and is fixedly connected to a suspension plate, the suspension plate is arranged above the pressure plate, and a depth adjustment component for intermittently adjusting the position of the pressure plate is arranged between the suspension plate and the pressure plate.

[0007] As a further solution of the present invention: the depth adjustment assembly includes a reciprocating screw rotatably connected to the inner side of the suspension plate, a connecting sleeve is installed on the outer wall of the reciprocating screw, the top of the reciprocating screw passes through the top of the suspension plate and is fixedly connected to a first bevel gear, the top of the suspension plate is fixedly connected to an auxiliary seat, the inner side of the auxiliary seat is rotatably connected to a connecting shaft, one end of the connecting shaft passes through the inner side of the auxiliary seat and is fixedly connected to a second bevel gear, and the second bevel gear is meshed with the first bevel gear, and a power toggle unit for toggling the connecting shaft for unidirectional rotation is provided between the inner side of the bracket and the connecting shaft.

[0008] As a further solution of the present invention: two guide rods are fixedly connected to the bottom of the suspension plate, guide blocks are fixedly connected to both sides of the connecting sleeve, the guide blocks are slidably connected to the outer walls of the guide rods, and the connecting sleeve is slidably connected to the guide rods through the guide blocks.

[0009] As a further scheme of the present invention: the power toggle unit includes a through slot opened on the inner side of the bracket, a hanging rod is fixedly connected to the inner side of the through slot, a plurality of rotating teeth are equidistantly arranged on the inner side of the hanging rod, one end of each rotating tooth is fixedly connected to a rotating shaft, and one end of the rotating shaft passes through the outside of the hanging rod and is rotatably connected to the hanging rod, a torsion spring is installed between the rotating shaft and the hanging rod, a slope is arranged at one end of the rotating tooth, one end of the connecting shaft passes through the outside of the auxiliary seat and is fixedly connected to a spur gear, and the spur gear is meshed with the rotating tooth, a plurality of baffles are fixedly connected to the inner side of the hanging rod, and the plurality of baffles are respectively attached to the top of the rotating teeth.

[0010] As a further solution of the present invention: the rotation adjustment mechanism includes an output end of a driving motor installed on one side of the sliding seat, which passes through the inner side of the sliding seat and is fixedly connected to a rotating shaft, one end of the rotating shaft is fixedly connected to a support plate, the top of the support plate is fixedly connected to a U-shaped frame, the inner side of the U-shaped frame is rotatably connected to a one-way threaded screw, the outer wall of the one-way threaded screw is threadedly connected to a fixing plate, and the fixing plate is slidably connected to the outer wall of the U-shaped frame.

[0011] As a further solution of the present invention: The tensioning assembly includes a slider slidably connected to the inner side of the detection seat. A connecting spring is installed between the slider and the detection seat. A spherical rod is fixedly connected to the inner side of the sliding seat. Connecting rods are fixedly connected to both sides of the suspension plate. Trapezoidal blocks are fixedly connected to both ends of the connecting rod. One inclined surface of the trapezoidal block is attached to the end of the spherical rod.

[0012] As a further solution of the present invention: Limiting blocks are fixedly connected to both sides of the slider. Limiting chutes matching the limiting blocks are provided on the inner side of the detection seat. The slider is slidably connected to the detection seat through the limiting blocks fixedly connected to both sides.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. By setting the mutual cooperation of the pressing assistor and the depth adjustment assembly, the connecting sleeve is driven to drive the pressing plate to move downward by a certain distance, so that when the hydraulic cylinder compresses and detects the conductive foam again next time, since the moving position of the output end of the hydraulic cylinder is fixed, the position where the pressing plate adjusts the position and presses on the conductive foam again will change. In this way, the intermittent multiple position adjustment function of the pressing plate can be realized by the reciprocation of the hydraulic cylinder, so as to cooperate with the external conductive performance detector to detect the conductive foam in different pressing states, thereby improving the accuracy of the detection data and improving the overall practicality of the device;

[0015] 2. By setting the rotation adjustment mechanism, when the conductive foam is placed, its two ends can be respectively placed inside a set of fixed plates and the supporting plate, and then the unidirectional threaded screw rods are rotated respectively to drive the fixed plates to press tightly on the top of the conductive foam, so as to fix the two ends of the conductive foam. After one side of the conductive foam is detected, the driving motor can be started. The output end of the driving motor drives the fixed plates and the supporting plate to drive the clamped conductive foam to rotate 180 degrees, so that the conductive foam can be automatically turned over and detected again, thereby improving the accuracy of the detection;

[0016] 3. By setting the tensioning assembly, when the suspension plate moves downward, it drives the trapezoidal block to move downward at the same time. When one inclined surface of the trapezoidal block contacts the spherical rod, it pushes the spherical rod to drive the sliding seat to move away from the conductive foam. When the spherical rod separates from one inclined surface of the trapezoidal block and abuts against its plane, when the pressing plate continues to move downward, it will contact the conductive foam for detection. By the two sliding seats moving away from the conductive foam respectively, the conductive foam is pulled, so that it is straightened, thereby eliminating the deformation influence of the conductive foam in the soft state during placement detection, so that the subsequent conductive foam can be in good fit with the electrode sheet, and thus ensuring the accuracy of the detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Structural schematic diagram of the present invention;

[0018] Figure 2 Structural schematic diagram of the slider of the present invention;

[0019] Figure 3 Structural schematic diagram of the inner side of the sliding seat of the present invention;

[0020] Figure 4 Structural schematic diagram of the bottom of the pressing plate of the present invention;

[0021] Figure 5 Structural schematic diagram of the inner side of the bracket of the present invention;

[0022] Figure 6 For the present invention Figure 5 Enlarged view at position A in;

[0023] Figure 7 Structural schematic diagram of the depth adjustment component of the present invention;

[0024] Figure 8 For the present invention Figure 7 Enlarged view at position B in.

[0025] In the figure: 1, detection seat; 2, sliding seat; 3, slider; 4, connecting spring; 5, drive motor; 6, support seat; 7, conductive foam; 8, pressing plate; 9, bracket; 10, connecting rod; 11, spherical rod; 12, trapezoidal block; 13, rotating shaft; 14, fixing plate; 15, support plate; 16, torsion spring; 17, hydraulic cylinder; 18, suspension plate; 19, connecting sleeve; 20, U-shaped frame; 21, single-threaded screw rod; 22, electrode plate; 23, reciprocating screw rod; 24, first bevel gear; 25, auxiliary seat; 26, second bevel gear; 27, coupling shaft; 28, through groove; 29, spur gear; 30, suspension rod; 31, guide rod; 32, guide block; 33, rotating tooth; 34, slope; 35, baffle; 36, rotating shaft. Detailed implementation manners

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "connected", "set" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following describes the embodiments according to the overall structure of the present invention.

[0028] Embodiment 1

[0029] Please refer to Figures 1 to 8 , this embodiment provides a conductive foam performance detection device, including: a detection base 1 and a support base 6 fixedly connected to the top of the detection base 1. Above the support base 6 is provided a conductive foam 7. Above the conductive foam 7 is provided a pressing plate 8. Multiple groups of electrode plates 22 are embedded at the bottom of the pressing plate 8. Each group of electrode plates 22 has two, and the two electrode plates 22 are symmetrically arranged with respect to the center axis of the pressing plate 8; a pressing assistant, located on the top of the support base 6, for pressing the pressing plate 8 against the conductive foam 7. The pressing assistant includes a bracket 9 fixedly connected to the top of the support base 6. A hydraulic cylinder 17 is installed at the top of the bracket 9. The output end of the hydraulic cylinder 17 penetrates to the inside of the bracket 9 and is fixedly connected with a suspension plate 18. The suspension plate 18 is arranged above the pressing plate 8;

[0030] Multiple groups of electrode plates 22 are respectively connected to an external conductive performance detector for detecting the conductive performance of the conductive foam 7 through wires. Each group of electrode plates 22 is composed of a positive electrode plate and a negative electrode plate. First, after the conductive foam 7 is placed on the top of the support base 6, the hydraulic cylinder 17 can be started to drive the pressing plate 8 to fit against the top of the conductive foam 7, and power-on detection is respectively carried out through multiple groups of electrode plates 22 at the bottom of the pressing plate 8, so as to realize multi-point detection of the conductive foam 7, thereby improving the accuracy of the overall detection of the conductive foam 7.

[0031] Embodiment 2

[0032] A depth adjustment assembly for intermittently adjusting the position of the pressing plate 8 is provided between the hanging plate 18 and the pressing plate 8, and the depth adjustment assembly includes a reciprocating screw 23 rotatably connected to the inner side of the hanging plate 18, and a connecting sleeve 19 is installed on the outer wall of the reciprocating screw 23. The top of the reciprocating screw 23 passes through the upper side of the hanging plate 18 and is fixedly connected to a first bevel gear 24. The top of the hanging plate 18 is fixedly connected to an auxiliary seat 25, and the inner side of the auxiliary seat 25 is rotatably connected to a connecting shaft 27. One end of the connecting shaft 27 passes through the inner side of the auxiliary seat 25 and is fixedly connected to a second bevel gear 26, and the second bevel gear 26 is meshed with the first bevel gear 24. A power toggle unit for unidirectional rotation by toggling the connecting shaft 27 is provided between the inner side of the bracket 9 and the connecting shaft 27. Two guide rods 31 are fixedly connected to the bottom of the hanging plate 18, and guide blocks 32 are fixedly connected to both sides of the connecting sleeve 19. The guide block 32 is slidably connected to the outer wall of the guide rod 31, and the connecting sleeve 19 is slidably connected to the guide rod 31 through the guide block 32. The power toggle unit includes a through slot 28 opened on the inner side of the bracket 9, and a suspension rod 30 is fixedly connected to the inner side of the through slot 28. A plurality of rotating teeth 33 are equidistantly arranged on the inner side of the suspension rod 30, and one end of each rotating tooth 33 is fixedly connected to a rotating shaft 36, and one end of the rotating shaft 36 passes through the outside of the suspension rod 30 and is rotatably connected to the suspension rod 30. A torsion spring 16 is installed between the rotating shaft 36 and the suspension rod 30, and a ramp 34 is arranged at one end of the rotating tooth 33. One end of the connecting shaft 27 passes through the outside of the auxiliary seat 25 and is fixedly connected to a spur gear 29, and the spur gear 29 is meshed with the rotating tooth 33. A plurality of baffles 35 are fixedly connected to the inner side of the suspension rod 30, and the plurality of baffles 35 are respectively attached to the top of the rotating tooth 33;

[0033] During the process that the output end of the hydraulic cylinder 17 drives the suspension plate 18 to move downward, the spur gear 29 is driven to contact the rotating tooth 33. Under the action of the slope 34, the spur gear 29 can drive the slope 34 to rotate, so that the torsion spring 16 is twisted. When the spur gear 29 is separated from the rotating tooth 33, the rotating tooth 33 can be reset under the action of the torsion spring 16. When the suspension plate 18 drives the spur gear 29 to reset upward, the spur gear 29 is resisted when it contacts the bottom plane of the rotating tooth 33, so as to drive the spur gear 29 to rotate. The rotation of the spur gear 29 drives the second bevel gear 26 to rotate through the coupling shaft 27, and then drives the first bevel gear 24 to drive the reciprocating lead screw 23 to rotate, so as to drive the connecting sleeve 19 to drive the pressing plate 8 to move downward by a certain distance. Thus, when the hydraulic cylinder 17 compresses and detects the conductive foam 7 again next time, since the moving position of the output end of the hydraulic cylinder 17 is fixed, the position where the pressing plate 8 that adjusts the position presses on the conductive foam 7 again will change. In this way, the intermittent multiple position adjustment function of the pressing plate 8 can be realized through the reciprocation of the hydraulic cylinder 17, so as to cooperate with the external conductive performance detector to detect the conductive foam 7 in different pressing states, thereby improving the accuracy of the detection data and improving the overall practicability of the device;

[0034] After the suspension plate 18 moves downward to the maximum position, during the reciprocating telescopic movement of the hydraulic cylinder 17, the suspension plate 18 will gradually reset under the drive of the reciprocating lead screw 23.

[0035] Embodiment 3

[0036] The rotation adjustment mechanism is located on both sides of the conductive foam 7 and is used to turn over the conductive foam 7. The rotation adjustment mechanism includes two sliding seats 2 arranged on the top of the detection seat 1. The rotation adjustment mechanism includes a drive motor 5 installed on one side of the sliding seat 2. The output end of the drive motor 5 penetrates to the inside of the sliding seat 2 and is fixedly connected with a rotating shaft 13. One end of the rotating shaft 13 is fixedly connected with a support plate 15. The top of the support plate 15 is fixedly connected with a U-shaped frame 20. A unidirectional threaded lead screw 21 is rotatably connected inside the U-shaped frame 20. The outer wall of the unidirectional threaded lead screw 21 is threadedly connected with a fixing plate 14, and the fixing plate 14 is slidably connected to the outer wall of the U-shaped frame 20;

[0037] When the conductive foam 7 is placed, its two ends can be respectively placed inside a set of fixing plates 14 and the support plate 15. Then, the unidirectional threaded lead screw 21 is rotated respectively to drive the fixing plate 14 to press tightly on the top of the conductive foam 7, so as to fix the two ends of the conductive foam 7. After one side of the conductive foam 7 is detected, the drive motor 5 can be started. The output end of the drive motor 5 drives the fixing plate 14 and the support plate 15 to drive the clamped conductive foam 7 to rotate 180 degrees, so that the conductive foam 7 can be automatically turned over and then detected again, thereby improving the accuracy of the detection.

[0038] Embodiment 4

[0039] The tensioning assembly is located inside the sliding seat 2 and is used to cooperate with the pressing assistor to form tension on the conductive foam 7. The tensioning assembly includes a slider 3 slidably connected inside the detection seat 1. A connecting spring 4 is installed between the slider 3 and the detection seat 1. A spherical rod 11 is fixedly connected inside the sliding seat 2. Connecting rods 10 are fixedly connected to both sides of the suspension plate 18. Trapezoidal blocks 12 are fixedly connected to both ends of the connecting rod 10. One inclined surface of the trapezoidal block 12 is attached to the end of the spherical rod 11. Limit blocks are fixedly connected to both sides of the slider 3. Limit sliding grooves matching the limit blocks are formed inside the detection seat 1. The slider 3 is slidably connected to the detection seat 1 through the limit blocks fixedly connected to both sides;

[0040] When the suspension plate 18 moves downward, it drives the trapezoidal block 12 to move downward at the same time. When one inclined surface of the trapezoidal block 12 contacts the spherical rod 11, it pushes the spherical rod 11 to drive the sliding seat 2 to move away from the conductive foam 7. When the spherical rod 11 separates from one inclined surface of the trapezoidal block 12 and abuts against its plane, when the pressing plate 8 continues to move downward, it will contact the conductive foam 7 for detection. By moving the two sliding seats 2 away from the conductive foam 7 respectively, the conductive foam 7 is pulled, so that it is straightened, thereby eliminating the deformation influence of the conductive foam 7 during detection in the soft state during placement, so that the subsequent conductive foam 7 can be in good fit with the electrode sheet 22, and further ensuring the accuracy of detection.

[0041] The above is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent replacements or changes, and should be covered by the protection scope of the present invention.

Claims

1. A conductive foam performance detection device, characterized in that: include: A detection seat (1) and a support seat (6) fixedly connected to the top of the detection seat (1), a conductive foam (7) is arranged above the support seat (6), a pressing plate (8) is arranged above the conductive foam (7), a plurality of groups of electrode sheets (22) are embedded at the bottom of the pressing plate (8), each group of the electrode sheets (22) is provided with two, and the two electrode sheets (22) are symmetrically arranged about the central axis of the pressing plate (8); A pressing assistant, located on the top of the support seat (6), used to press the pressing plate (8) against the conductive foam (7); A rotation adjustment mechanism, located on both sides of the conductive foam (7), used for turning over the conductive foam (7), the rotation adjustment mechanism comprising two sliding seats (2) arranged on the top of the detection seat (1); A tensioning component, located on the inner side of the sliding seat (2), and used to cooperate with the compression auxiliary device to tighten the conductive foam (7); The clamping auxiliary device comprises a bracket (9) fixedly connected to the top of the support seat (6), a hydraulic cylinder (17) is installed on the top of the bracket (9), an output end of the hydraulic cylinder (17) passes through the inner side of the bracket (9) and is fixedly connected to a hanging plate (18), the hanging plate (18) is arranged above the pressing plate (8), and a depth adjustment component for intermittently adjusting the position of the pressing plate (8) is arranged between the hanging plate (18) and the pressing plate (8); The depth adjustment assembly comprises a reciprocating screw (23) rotatably connected to the inner side of the suspension plate (18), a connecting sleeve (19) being installed on the outer wall of the reciprocating screw (23), the top of the reciprocating screw (23) passing through the upper side of the suspension plate (18) and being fixedly connected to a first bevel gear (24), the top of the suspension plate (18) being fixedly connected to an auxiliary seat (25), the inner side of the auxiliary seat (25) being rotatably connected to a connecting shaft (27), one end of the connecting shaft (27) passing through the inner side of the auxiliary seat (25) and being fixedly connected to a second bevel gear (26), and the second bevel gear (26) being meshed with the first bevel gear (24), and a power toggle unit for toggling the connecting shaft (27) for unidirectional rotation is provided between the inner side of the bracket (9) and the connecting shaft (27).

2. A conductive foam performance detection device according to claim 1, characterized in that: The bottom of the suspension plate (18) is fixedly connected to two guide rods (31), and guide blocks (32) are fixedly connected to both sides of the connecting sleeve (19). The guide blocks (32) are slidably connected to the outer walls of the guide rods (31), and the connecting sleeve (19) is slidably connected to the guide rods (31) via the guide blocks (32).

3. A conductive foam performance detection device according to claim 1, characterized in that: The power toggle unit comprises a through slot (28) provided on the inner side of the bracket (9), a suspension rod (30) being fixedly connected to the inner side of the through slot (28), a plurality of rotating teeth (33) being arranged at equal distances on the inner side of the suspension rod (30), one end of each rotating tooth (33) being fixedly connected to a rotating shaft (36), and one end of the rotating shaft (36) passing through the outside of the suspension rod (30) and being rotationally connected to the suspension rod (30), a torsion spring (16) being installed between the rotating shaft (36) and the suspension rod (30), one end of the rotating tooth (33) being provided with a slope (34), one end of the connecting shaft (27) passing through the outside of the auxiliary seat (25) and being fixedly connected to a spur gear (29), and the spur gear (29) being meshed with the rotating tooth (33), a plurality of baffles (35) being fixedly connected to the inner side of the suspension rod (30), and the plurality of baffles (35) being respectively attached to the top of the rotating teeth (33).

4. A conductive foam performance detection device according to claim 1, characterized in that: The rotary adjustment mechanism comprises an output end of a driving motor (5) mounted on one side of the sliding seat (2), which passes through the inner side of the sliding seat (2) and is fixedly connected to a rotary shaft (13); one end of the rotary shaft (13) is fixedly connected to a support plate (15); the top of the support plate (15) is fixedly connected to a U-shaped frame (20); the inner side of the U-shaped frame (20) is rotatably connected to a one-way threaded screw (21); the outer wall of the one-way threaded screw (21) is threadedly connected to a fixing plate (14); and the fixing plate (14) is slidably connected to the outer wall of the U-shaped frame (20).

5. A conductive foam performance detection device according to claim 4, characterized in that: The tensioning assembly comprises a slider (3) slidably connected to the inner side of the detection seat (1), a connecting spring (4) is installed between the slider (3) and the detection seat (1), a spherical rod (11) is fixedly connected to the inner side of the sliding seat (2), connecting rods (10) are fixedly connected to both sides of the suspension plate (18), and both ends of the connecting rod (10) are fixedly connected to a trapezoidal block (12), and one end of the trapezoidal block (12) is inclined and fits against the end of the spherical rod (11).

6. A conductive foam performance detection device according to claim 5, characterized in that: Limit blocks are fixedly connected on both sides of the slider (3), and a limit sliding groove matching the limit blocks is provided on the inner side of the detection seat (1). The slider (3) is slidably connected to the detection seat (1) via the limit blocks fixedly connected on both sides.

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