Quick dismounting structure, dismounting device and dismounting method of polyurethane sieve plate

Abstract

The application discloses a quick dismounting structure, a dismounting device and a dismounting method of a polyurethane sieve plate. The quick dismounting structure of the polyurethane sieve plate comprises a polyurethane sieve plate body and a rail seat, further comprises a pre-buried threaded sleeve, the pre-buried threaded sleeve is installed at a position above the rail seat in a bound area of the polyurethane sieve plate body, the pre-buried threaded sleeve is integrally formed on the top surface of the bound area when injection molding, and the middle hole of the pre-buried threaded sleeve penetrates the polyurethane sieve plate body; the clamping joint of the rail seat is arranged in sections, and the discontinuous area between adjacent clamping joints is arranged below the pre-buried threaded sleeve, a lower through hole is coaxially arranged in the discontinuous area at the position of the middle hole of the pre-buried threaded sleeve; the bottom surface of the pre-buried threaded sleeve is lower than the top edge of the clamping joint, and the outer diameter of the pre-buried threaded sleeve is adapted to the width of the discontinuous area. The application avoids brute force dismounting and installation, and improves the dismounting and installation efficiency and quality.

Description

Technical Field

[0001] This invention relates to the field of polyurethane screen technology, and in particular to a quick-assembly and disassembly structure, device and method for polyurethane screens. Background Technology

[0002] Currently, most modular polyurethane screen panels are installed using a snap-fit ​​method. Modular polyurethane screen panels installed using a snap-fit ​​method, such as... Figure 1 As shown, during installation, the polyurethane screen plate 1 is installed onto the rail base 2 by hammering, so that the groove 101 on the short side bottom surface of the polyurethane screen plate 1 engages with the clamping joint 201 of the rail base 2. Hammering may damage the surface of the polyurethane screen plate 1, affecting the screening quality. Moreover, disassembly requires inserting the tip of a pry bar or other tool into the gap between adjacent polyurethane screen plates 1, and then prying the polyurethane screen plate 1 off the clamping joint 201 of the rail base 2. When inserting the pry bar, it often requires two people to work together, one holding the pry bar and the other hammering the tip of the pry bar to insert it into the gap between the polyurethane screen plates 1, which is a waste of manpower. Using brute force to pry off the screen plate 1 not only easily damages the disassembled polyurethane screen plate 1, but also easily damages the rail base 2, increasing maintenance and replacement costs.

[0003] To overcome the above problems, a quick-assembly and disassembly structure, device, and method for polyurethane screen panels are needed. Summary of the Invention

[0004] The purpose of this invention is to provide a quick disassembly and assembly structure, disassembly and assembly device, and disassembly and assembly method for polyurethane screen plates, which avoids brute force disassembly and installation and improves disassembly and installation efficiency and quality.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] This invention discloses a quick-assembly and disassembly structure for a polyurethane screen plate, comprising a polyurethane screen plate body and a rail base, and further comprising a pre-embedded threaded sleeve. The pre-embedded threaded sleeve is installed on the edge region of the polyurethane screen plate body above the rail base. The pre-embedded threaded sleeve is integrally formed on the top surface of the edge region during injection molding, and the central hole of the pre-embedded threaded sleeve penetrates through the polyurethane screen plate body. The retaining joints of the rail base are segmented, and there is a discontinuity zone between adjacent retaining joints below the pre-embedded threaded sleeve. The discontinuity zone has a lower through hole coaxially formed at the central hole position of the pre-embedded threaded sleeve. The bottom surface of the pre-embedded threaded sleeve is lower than the top edge of the retaining joint, and the outer diameter of the pre-embedded threaded sleeve is adapted to the width of the discontinuity zone.

[0007] Furthermore, the top edge of the snap-fit ​​sidewall on both sides of the discontinuity zone is provided with a chamfer, and the bottom surface of the pre-embedded threaded sleeve is lower than the bottom edge of the chamfer.

[0008] The outer diameter of the pre-buried threaded sleeve is matched with the width of the discontinuous area, which can position the polyurethane sieve plate body relative to the rail seat during installation, and significantly reduces the workload of manual alignment.

[0009] Further, the outer wall of the pre-buried threaded sleeve is fixed with a fin plate, the fin plate is arranged in the middle of the pre-buried threaded sleeve, and the fin plate is embedded in the polyurethane material of the edge covering area.

[0010] The quick disassembly structure of the polyurethane sieve plate can pull the polyurethane sieve plate body outward by a screw during disassembly, so that the polyurethane sieve plate body is separated from the rail seat, and the use of a crowbar to pry open is avoided. Through the coaxial through hole in the pre-buried threaded sleeve and the lower through hole, the polyurethane sieve plate body can be pulled tightly onto the rail seat for installation after the pull rope is connected.

[0011] Further, the fin plate is circumferentially distributed with a plurality of anchor holes.

[0012] The application also discloses a disassembly device for disassembling the polyurethane sieve plate with the quick disassembly structure.

[0013] Further, the puller assembly includes a working inclined plate, a pressing lever, a pin shaft bolt and a support, the head of the pressing lever is fixedly connected with the tail of the working inclined plate, the tail of the working inclined plate is arranged as a handle, the top end of the support is hinged to the position close to the head of the pressing lever through the pin shaft bolt, the bottom of the working inclined plate is provided with a jaw slot for clamping the bolt head of the lifting screw, and the top surface of the working inclined plate is further provided with a rope hitching part for hitching the pull rope.

[0014] Further, the middle part of the clamping rod is radially provided with a rope hitching hole, and the pull rope is a rope loop with a head and a tail and is connected with the bottom end penetrating in the rope hitching hole.

[0015] Further, the rope hitching part specifically adopts a rope hitching cylinder, the rope hitching cylinder is welded at the middle position of the top surface of the working inclined plate, and the top end of the pull rope is sleeved on the rope hitching cylinder.

[0016] Further, the rope hitching part specifically adopts a sharp-angle bent plate, the sharp-angle bent plate is welded on the top surface of the working inclined plate, two bottom edges of the sharp-angle bent plate are respectively welded at the outer edges of the jaws of the jaw slot, and the top end of the sharp-angle bent plate is inwardly provided with a rope hitching inclined slot, and the top end of the pull rope is sleeved in the rope hitching inclined slot.

[0017] The dismounting device is specially used for dismounting polyurethane sieve plates, is strong in pertinence and greatly improves work efficiency.

[0018] The application further discloses a dismounting method.

[0019] When dismounting,

[0020] Step one, the lifting screw is screwed into the hole in the pre-buried threaded sleeve, and the bolt head is exposed to a certain height;

[0021] Step two, the lifting assembly is placed on the top surface of the adjacent polyurethane sieve plate body, and the polyurethane sieve plate body that needs to be dismounted is not required; the lifting assembly pulls the lifting screw upwards, and the polyurethane sieve plate body is separated from the rail seat below;

[0022] When mounting,

[0023] Step one, first, the polyurethane sieve plate body to be mounted is placed above the rail seat, and the bottom end of the pre-buried threaded sleeve is inserted above the discontinuous area, so that the polyurethane sieve plate body is initially aligned with the rail seat;

[0024] Step two, the clamping rod is vertically erected and sequentially passes through the hole in the pre-buried threaded sleeve and the lower through hole, and after complete penetration, the top end of the pulling rope is pulled to horizontally clamp the clamping rod on the bottom surface of the rail seat;

[0025] Step three, the lifting assembly is placed on the top surface of the polyurethane sieve plate body to be mounted, and the top surface of the adjacent polyurethane sieve plate body is not required; the top end of the pulling rope is connected to the lifting assembly, the lifting assembly pulls the clamping rod, and the polyurethane sieve plate body is pressed downward to be buckled to the rail seat below.

[0026] Compared with the prior art, the application has the beneficial technical effects:

[0027] The quick dismounting structure of the polyurethane sieve plate of the application can pull the polyurethane sieve plate body outward by a screw when dismounting, so that the polyurethane sieve plate body is separated from the rail seat, avoiding the use of a crowbar to pry it open; the coaxial through hole and the lower through hole of the embedded threaded sleeve can be connected with a pull rope, and then the polyurethane sieve plate body is pulled tightly onto the rail seat for installation. In addition, the outer diameter of the embedded threaded sleeve is adapted to the width of the discontinuous area, and the two are clearance fit, so that the polyurethane sieve plate body can be placed on the rail seat and automatically centered, the embedded threaded sleeve is inserted into the discontinuous area, and the coaxiality of the through hole and the lower through hole of the embedded threaded sleeve is ensured. The inclined chamfer provided on the top edge of the side wall of the clamping head facilitates smooth guiding and automatic alignment of the embedded threaded sleeve. The fin plate added to the outer wall of the embedded threaded sleeve increases the anchoring performance of the embedded threaded sleeve in the polyurethane material in the edge covering area, avoiding the situation that the embedded threaded sleeve is pulled out when hoisting and dismounting. The anchor hole provided on the fin plate increases the anchor bonding area, further enhancing the anchoring performance.

[0028] The dismounting device of the application can use the lifting assembly to pull the polyurethane sieve plate body from the rail seat connected by the buckle, and the pull rope and the clamping rod can pull the rail seat upward relative to the polyurethane sieve plate body to achieve installation of the polyurethane sieve plate body. In addition, the radially arranged bolt hole is connected with the pull rope, which has high connection strength and is not easy to fall off, and is convenient to pass through the hole. The handle at the tail end of the pressure lever can obtain a larger lifting force at the working inclined plate, meeting the installation and dismounting requirements. The clamping jaw slot and the bolt rope part are provided on the working inclined plate, so that they can be used for lifting and dismounting and pulling the pull rope for installation at the same time, and the two functions are realized at the same time. The simple bolt rope cylinder is used to connect the pull rope, which is simple in structure and easy to realize. The bolt rope part in the form of a sharp corner bent plate can prevent the bolt rope from falling off on one hand, and the two side plates are multi-point welded on the top surface of the working inclined plate, increasing the strength of the working inclined plate itself and preventing it from being bent and deformed during work. Furthermore, the two bottom edges of the sharp corner bent plate are respectively welded at the outer edge of the clamping jaw slot, which can effectively reinforce and support the clamping jaw, prevent it from being bent downward when lifting the screw bolt head, and improve the service life of the tool.

[0029] The method of the application is used for dismounting and installing the polyurethane sieve plate, which reduces the labor intensity, improves the installation efficiency, and ensures the dismounting and installation quality compared with the traditional crowbar dismounting and hammering installation. BRIEF DESCRIPTION OF DRAWINGS

[0030] The application will be further described below in conjunction with the drawings.

[0031] Figure 1It is a schematic diagram of polyurethane sieve plate mounting structure in prior art;

[0032] Figure 2 It is a schematic diagram of polyurethane sieve plate quick dismounting structure in the application;

[0033] Figure 3 It is a schematic diagram of polyurethane sieve plate dismounting state of the dismounting device;

[0034] Figure 4 It is a schematic diagram of the partial enlarged structure of I part; Figure 3

[0035] Figure 5 It is a schematic diagram of polyurethane sieve plate mounting state of the dismounting device;

[0036] Figure 6 It is a schematic diagram of the partial enlarged structure of J part; Figure 5

[0037] Figure 7 It is a schematic diagram of another embodiment of the dismounting device;

[0038] Figure 8 It is a schematic diagram of another embodiment of the dismounting device.

[0039] The figure mark explanation: 1, polyurethane sieve plate;101, clamping groove;102, sieve area;103, edge area;2, rail seat;201, clamping joint;202, lower through hole;3, embedded threaded sleeve;301, fin plate;4, lifting screw;5, working inclined plate;501, clamping jaw notch;502, rope part;5021, rope inclined slot;6, pressing lever;601, pin shaft hole;7, pin shaft bolt;8, support;801, wear plate;9, clamping stick;901, rope hole;10, pull rope;11, nut. DETAILED DESCRIPTION

[0040] The core of the application is to provide a polyurethane sieve plate quick dismounting structure, dismounting device and dismounting method, which avoids brute force dismounting and installation, and improves the dismounting and installation efficiency and quality.

[0041] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, not all the embodiments. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the application.

[0042] ​​In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0043] Referring to the drawings, Figure 1 is a schematic diagram of the prior art polyurethane screen plate mounting structure; Figure 2 is a top view schematic diagram of the quick disassembly structure of the polyurethane screen plate of the present application; Figure 3 is a schematic diagram of the structure of the disassembly device disassembling the polyurethane screen plate; Figure 4 is Figure 3 is a schematic diagram of the local enlarged structure of part I; Figure 5 is a schematic diagram of the structure of the disassembly device installing the polyurethane screen plate; Figure 6 is Figure 5 is a schematic diagram of the local enlarged structure of part J; Figure 7 is a front view schematic diagram of another embodiment of the disassembly device of the present application; Figure 8 is a schematic diagram of the structure of another embodiment of the disassembly device of the present application. Example 1

[0044] As Figures 2 to 6 shown, the quick disassembly structure of the polyurethane screen plate of the present application, like the polyurethane screen plate of the prior art, also includes a polyurethane screen plate body 1 and a rail seat 2, which are installed and connected by the clamping of the clamping groove 101 and the clamping joint 201. The important improvement of the present application is that the quick disassembly structure of the polyurethane screen plate further includes a pre-buried threaded sleeve 3, which is installed above the rail seat 2 at the edge covering area 103 of the polyurethane screen plate body 1. The pre-buried threaded sleeve 3 is integrally formed on the top surface of the edge covering area 103 during injection molding, i.e. the top surface of the pre-buried threaded sleeve 3 is flush with the large surface of the edge covering area 103. Moreover, the middle hole of the pre-buried threaded sleeve 3 penetrates the polyurethane screen plate body 1. The clamping joint 201 of the rail seat 2 is segmented and not continuous. Moreover, the discontinuous area between adjacent clamping joints 201 is below the pre-buried threaded sleeve 3, and a lower through hole 202 is coaxially provided at the position of the middle hole of the pre-buried threaded sleeve 3, i.e. the lower through hole 202 penetrates the rail seat 2.

[0045] By adding the pre-buried threaded sleeve 3, the polyurethane screen plate body 1 can be pulled outwards by a screw during disassembly, so that the polyurethane screen plate body 1 is separated from the rail seat 2, avoiding the use of a crowbar to pry it open. By penetrating the pre-buried threaded sleeve 3 middle hole and the lower through hole 202, the polyurethane screen plate body 1 can be installed on the rail seat 2 after the rope is connected.

[0046] Specifically, as shown in Figure 4 and Figure 6 , the threaded sleeve 3 is screwed with a nut 11 when the vibrating screen is working normally. The nut 11 can block the hole in the threaded sleeve 3 to prevent sundries from entering the hole in the threaded sleeve 3, which is not easy to affect the subsequent disassembly operation.

[0047] In a specific embodiment of the present embodiment, as shown in Figures 3 to 6 , the bottom surface of the threaded sleeve 3 is lower than the top edge of the clamping head 201, and the outer diameter of the threaded sleeve 3 is adapted to the width of the discontinuous area.

[0048] Specifically, the top edge of the side wall of the clamping head 201 on both sides of the discontinuous area is provided with an inclined chamfer, and the bottom surface of the threaded sleeve 3 is lower than the bottom edge of the inclined chamfer.

[0049] By setting the outer diameter of the threaded sleeve 3 to be adapted to the width of the discontinuous area, the two are gap fit, which can automatically center the polyurethane screen plate body 1 on the rail seat 2, and the bottom end of the threaded sleeve 3 is inserted into the discontinuous area above, which can ensure the coaxiality of the hole in the threaded sleeve 3 and the lower through hole 202. By setting the inclined chamfer on the top edge of the side wall of the clamping head 201, it is convenient to smoothly guide the automatic alignment of the threaded sleeve 3.

[0050] In a specific embodiment of the present embodiment, as shown in Figure 4 and Figure 6 , the outer wall of the threaded sleeve 3 is fixed with a fin plate 301, the fin plate 301 is arranged in the middle of the threaded sleeve 3, the fin plate 301 is a circular plate, and the inner circle of the fin plate 301 is welded on the outer wall of the threaded sleeve 3. The fin plate 301 is embedded in the polyurethane material of the edge covering area 103.

[0051] Specifically, as shown in Figure 4 and Figure 6 , a plurality of anchor holes are uniformly distributed on the fin plate 301, and the anchor holes are through holes filled with polyurethane material.

[0052] By adding the fin plate 301 on the outer wall of the threaded sleeve 3, the anchoring performance of the threaded sleeve 3 in the polyurethane material of the edge covering area 103 is increased, which avoids the threaded sleeve 3 from being pulled out during lifting and disassembly. By providing anchor holes on the fin plate 301, the anchoring and bonding area is increased, which further enhances the anchoring performance.

[0053] In summary, the quick dismounting structure of the polyurethane sieve plate can pull the polyurethane sieve plate body 1 outward by a screw when dismounting, so that the polyurethane sieve plate body 1 is separated from the rail seat 2, and the use of a crowbar to pry is avoided; the polyurethane sieve plate body 1 can be installed on the rail seat 2 by threading a pull rope through the coaxial through hole in the embedded threaded sleeve 3 and the lower through hole 202. In addition, the outer diameter of the embedded threaded sleeve 3 is adapted to the width of the discontinuous area, and the two are clearance fit, so that the polyurethane sieve plate body 1 can be placed on the rail seat 2 to automatically center, the embedded threaded sleeve 3 is inserted into the discontinuous area above, so that the coaxiality of the through hole in the embedded threaded sleeve 3 and the lower through hole 202 is ensured. By setting an inclined chamfer on the top edge of the side wall of the clamping head 201, the embedded threaded sleeve 3 can be automatically aligned smoothly. By adding a fin plate 301 on the outer wall of the embedded threaded sleeve 3, the anchoring performance of the embedded threaded sleeve 3 in the polyurethane material in the edge covering area 103 is increased, and the embedded threaded sleeve 3 is prevented from coming out during hoisting and dismounting. By opening an anchoring hole in the fin plate 301, the anchoring and bonding area is increased, and the anchoring performance is further enhanced. Example 2

[0054] The application also discloses a dismounting device for dismounting the polyurethane sieve plate with the quick dismounting structure of any one of the examples. The dismounting device comprises a hoisting screw 4, a pulling assembly, a clamping rod 9 and a pull rope 10. The pulling assembly can pull the hoisting screw 4 threaded to the embedded threaded sleeve 3 upward. The bottom end of the pull rope 10 is connected to the clamping rod 9, and the other end is connected to the pulling assembly. The pull rope 10 is threaded in the lower through hole 202 and the through hole in the embedded threaded sleeve 3. The clamping rod 9 is clamped on the bottom surface of the rail seat 2.

[0055] By threading the hoisting screw 4 to the embedded threaded sleeve 3, the polyurethane sieve plate body 1 can be pulled down from the rail seat 2 connected by the clamping buckle by using the pulling assembly; by the pull rope 10 and the clamping rod 9, the rail seat 2 is pulled upward relative to the polyurethane sieve plate body 1, and the installation of the polyurethane sieve plate body 1 is realized.

[0056] Specifically, as shown in Figure 5 and Figure 6 The clamping rod 9 has a bolt hole 901 radially formed in the middle, the pull rope 10 is a steel wire rope loop with a head-to-tail connection, and the bottom end of the loop is threaded in the bolt hole 901. The two ends of the clamping rod 9 are provided with round heads.

[0057] The radially formed bolt hole 901 is connected to the pull rope 10, has high connection strength, is not easy to fall off, and is convenient to thread through the hole.

[0058] Obviously, the polyurethane sieve plate body 1 can also be directly bound in the middle of the clamping rod 9, which can also play a role in transmitting the pulling force when the clamping rod 9 is clamped on the bottom surface of the rail seat 2, but the protruding binding area is not easy to pass through the hole in the pre-buried threaded sleeve 3. Similar simple replacement methods are within the scope of the present application.

[0059] In a specific embodiment of the present embodiment, as shown in Figures 4 to 6 The lifting assembly includes a working inclined plate 5, a pressing rod 6, a pin shaft bolt 7, and a support 8. The head of the pressing rod 6 is fixedly connected to the working inclined plate 5, and the two are welded together, and the tail is provided as a handle. The top end of the support 8 is hinged to the pressing rod 6 near the head through the pin shaft bolt 7, and the bottom plate of the support 8 is placed on the top surface of the polyurethane sieve plate body 1. The bottom of the working inclined plate 5 is provided with a clamping jaw slot 501 for clamping the bolt head of the lifting screw 4, and the width of the clamping jaw slot 501 is greater than the outer diameter of the screw rod of the lifting screw 4. The clamping jaws on both sides of the clamping jaw slot 501 protrude forward, and the clamping jaws are integrally formed by bending on the bottom of the working inclined plate 5. The top surface of the working inclined plate 5 is also provided with a rope hitching part 502 for hitching the pulling rope 10.

[0060] Specifically, as shown in Figure 5 The bottom surface of the bottom plate of the support 8 is compounded with a wear-resistant plate 801, which is a rubber plate and can protect the top surface of the polyurethane sieve plate body 1 from scratching and scratching.

[0061] Specifically, the pressing rod 6 is a horizontal beam rod with two parallel steel plates, and a pin shaft hole 601 is formed in the middle. The top end of the support 8 is inserted between the two steel plates and hinged by the pin shaft bolt 7 passing through the pin shaft hole 601.

[0062] According to the lever principle, pressing the handle at the tail end of the pressing rod 6 can obtain a larger lifting force at the working inclined plate 5, meeting the installation and disassembly requirements. The clamping jaw slot 501 and the rope hitching part 502 are provided on the working inclined plate 5, so that they can be used for lifting and disassembling the lifting screw 4 and installing the pulling rope 10 at the same time, realizing two functions at the same time.

[0063] Obviously, the lifting assembly can also be replaced by a large force wrench with a sawtooth mouth. Using a large force wrench can pull the bolt head of the lifting screw 4 and the top end of the pulling rope 10. Similar simple replacement methods are within the scope of the present application.

[0064] In a specific embodiment of the present embodiment, as shown in Figure 4 and Figure 6 The rope hitching part 502 specifically adopts a rope hitching cylinder, which is welded at the middle position of the top surface of the working inclined plate 5, and the top end of the pulling rope 10 is sleeved on the rope hitching cylinder. The simple rope hitching cylinder is used to connect the top end of the pulling rope 10, which is simple in structure and easy to realize.

[0065] In summary, the dismounting device, through the threaded connection of the lifting screw 4 in the embedded threaded sleeve 3, can use the lifting assembly to pull the polyurethane sieve plate body 1 from the buckled rail seat 2, and through the pull rope 10 and the clamping rod 9, the rail seat 2 is pulled upward relative to the polyurethane sieve plate body 1, and the installation of the polyurethane sieve plate body 1 is realized. In addition, by additionally arranging the radially arranged rope hole 901 to connect the pull rope 10, the connection strength is high, and the pull rope is not easy to fall off, and the through hole is convenient to pass through. According to the lever principle, the handle at the tail end of the pressing lever 6 is pressed, and a larger lifting force can be obtained at the working inclined plate 5, so that the installation and dismounting requirements are met. The working inclined plate 5 is provided with the clamping jaw notch 501 and the rope clamping part 502, so that it can be used for lifting the lifting screw 4 for dismounting and pulling the pull rope 10 for installation at the same time, and the two functions are realized at the same time. The rope clamping cylinder is used for connecting the top end of the pull rope 10, and the structure is simple and easy to realize. Example 3

[0066] In the above-mentioned example 2, the rope clamping part 502 specifically connects the top end of the pull rope 10 in the form of the rope clamping cylinder, and there are problems of low connection strength and easy rope falling. In view of the problem, the above-mentioned example 2 is improved to form the present example.

[0067] Specifically, the rope clamping part 502 specifically adopts a sharp corner bent plate, the sharp corner bent plate is welded on the top surface of the working inclined plate 5, and can be multi-point welded along the edge coinciding with the top surface of the working inclined plate 5. The two bottom edges of the sharp corner bent plate are respectively welded at the outer edges of the clamping jaws of the clamping jaw notches 501. The top end of the sharp corner bent plate is provided with a rope inclined groove 5021 inwardly, and the rope inclined groove 5021 is obliquely arranged at the top end of the sharp corner bent plate close to the working inclined plate 5. The top end of the pull rope 10 is sleeved in the rope inclined groove 5021.

[0068] By arranging the rope clamping part 502 in the form of the sharp corner bent plate, on the one hand, the rope clamping part 502 is not easy to fall off, and on the other hand, the two side plates are multi-point welded on the top surface of the working inclined plate 5, so that the strength of the working inclined plate 5 itself is increased, and the bending deformation of the working inclined plate 5 during work is prevented. Furthermore, the two bottom edges of the sharp corner bent plate are respectively welded at the outer edges of the clamping jaws of the clamping jaw notches 501, so that the clamping jaws can be strongly reinforced and supported, the downward bending deformation of the clamping jaws when lifting the screw bolt head of the lifting screw 4 is avoided, and the service life of the tool is improved. Example 4

[0069] The application further discloses a dismounting method, which adopts the dismounting device of example 2 or 3 to dismount and install the polyurethane sieve plate with the quick dismounting structure of any one of example 1, and comprises the following steps.

[0070] When dismounting,

[0071] Step one, the lifting screw 4 is screwed into the hole in the embedded threaded sleeve 3, the bolt head is exposed to a certain height, which is convenient for the installation of the lifting assembly working end.

[0072] Step two, place the lifting assembly on the top surface of the adjacent polyurethane sieve plate body 1, note that the polyurethane sieve plate body 1 does not need to be disassembled. The lifting assembly pulls the lifting screw 4 upwards, and the polyurethane sieve plate body 1 is separated from the track seat 2 below.

[0073] When installing,

[0074] Step one, first place the polyurethane sieve plate body 1 to be installed above the track seat 2, note that the bottom end of the embedded threaded sleeve 3 is inserted above the discontinuous area, and the initial alignment of the polyurethane sieve plate body 1 to the track seat 2 is completed.

[0075] Step two, the clamping rod 9 is erected and sequentially passes through the hole in the embedded threaded sleeve 3 and the lower through hole 202. After passing completely, the top end of the pulling rope 10 is pulled, so that the clamping rod 9 is horizontally clamped on the bottom surface of the track seat 2.

[0076] Step three, place the lifting assembly on the top surface of the polyurethane sieve plate body 1 to be installed, note that it is not on the top surface of the adjacent polyurethane sieve plate body 1. The top end of the pulling rope 10 is connected to the working end of the lifting assembly, and the lifting assembly pulls the clamping rod 9, and presses the polyurethane sieve plate body 1 downward to make it buckled to the track seat 2 below.

[0077] In a specific embodiment, the specific process of the disassembly method of the present application is as follows:

[0078] When disassembling,

[0079] S1, first use a screwdriver to disassemble the nut 11 from the top opening of the embedded threaded sleeve 3.

[0080] S2, the lifting screw 4 is screwed into the hole in the embedded threaded sleeve 3, and the bolt head is exposed to a certain height.

[0081] S3, place the lifting assembly, the bottom plate of the support 8 is placed on the top surface of the adjacent polyurethane sieve plate body 1, note that it is not the polyurethane sieve plate body 1 to be disassembled; the clamping jaw notch 501 is inserted below the bolt head of the lifting screw 4, note that the root of the clamping jaw notch 501 does not contact the screw rod of the lifting screw 4.

[0082] S4, hold the handle at the tail of the pressing lever 6 and press it downward, the working inclined plate 5 rotates upward, the clamping jaw notch 501 pulls the lifting screw 4 upward, and the polyurethane sieve plate body 1 is separated from the track seat 2 below.

[0083] Thus, the disassembly of the other side of the polyurethane sieve plate body 1 is completed, and the entire polyurethane sieve plate body 1 can be disassembled from the track seat 2.

[0084] When installing,

[0085] S1, first place the polyurethane sieve plate body 1 to be installed above the rail seat 2, pay attention to the hole in the embedded threaded sleeve 3 aligning with the lower through hole 202, the bottom end of the embedded threaded sleeve 3 is inserted above the discontinuous area, and the automatic centering of the polyurethane sieve plate body 1 to the rail seat 2 is completed.

[0086] S2, the card stick 9 is erected and sequentially passes through the hole in the embedded threaded sleeve 3 and the lower through hole 202, after completely passing through, the top end of the pull rope 10 is pulled to make the card stick 9 horizontally clamped on the bottom surface of the rail seat 2;

[0087] S3, place the pull assembly, the bottom plate of the support 8 is placed on the top surface of the polyurethane sieve plate body 1 to be installed, pay attention to not adjacent to the polyurethane sieve plate body 1; the top end of the pull rope 10 is sleeved on the bolt rope cylinder, and the pull rope 10 passes through the clamping jaw slot 501.

[0088] S4, press the handle at the tail of the pressing lever 6 downward, the working inclined plate 5 rotates upward, the bolt rope cylinder pulls the pull rope 10, and the bottom plate of the support 8 presses the polyurethane sieve plate body 1 downward to make it buckled on the rail seat 2 below.

[0089] Thus the installation of the other side of the polyurethane sieve plate body 1 is completed, and then the nut 11 is installed on the top opening of the embedded threaded sleeve 3.

[0090] The polyurethane sieve plate is disassembled and installed by using the method of the application, compared with the traditional pry bar disassembly and hammer installation, the labor intensity is reduced, the installation efficiency is improved, and the disassembly and installation quality is guaranteed.

[0091] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The same and similar parts between the various embodiments can be referred to each other. For the device disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple, and the related parts can be referred to the method part.

[0092] The above-described embodiments are only preferred modes of the application, and do not limit the scope of the application. Without departing from the design spirit of the application, various modifications and improvements of the technical solutions of the application made by those skilled in the art shall fall within the protection scope of the claims of the application.

Claims

1. A disassembly and assembly device for disassembling and assembling a polyurethane screen plate with a quick disassembly and assembly structure, the quick disassembly and assembly structure comprising a polyurethane screen plate body (1), a rail seat (2), and a pre-embedded threaded sleeve (3), wherein the pre-embedded threaded sleeve (3) is installed on the edge area (103) of the polyurethane screen plate body (1) above the rail seat (2), the pre-embedded threaded sleeve (3) is integrally formed on the top surface of the edge area (103) during injection molding, and the central hole of the pre-embedded threaded sleeve (3) penetrates the polyurethane screen plate body (1); the clamping joint (201) of the rail seat (2) is segmented, and below the pre-embedded threaded sleeve (3) is an interruption zone between adjacent clamping joints (201), the interruption zone having a lower through hole (202) coaxially opened at the central hole position of the pre-embedded threaded sleeve (3); the bottom surface of the pre-embedded threaded sleeve (3) is lower than the top edge of the clamping joint (201), and the outer diameter of the pre-embedded threaded sleeve (3) is adapted to the width of the interruption zone; The disassembly / assembly device is characterized in that: Includes a lifting screw (4), a lifting assembly, a locking roller (9), and a pull rope (10); the lifting assembly can pull the lifting screw (4) threadedly connected to the pre-embedded threaded sleeve (3) upward; one end of the pull rope (10) is connected to the locking roller (9), and the other end is connected to the lifting assembly and passes through the lower through hole (202) and the middle hole of the pre-embedded threaded sleeve (3); the locking roller (9) is locked on the bottom surface of the rail seat (2); The lifting assembly includes a working inclined plate (5), a pressure bar (6), a pin bolt (7), and a support (8). The head of the pressure bar (6) is fixedly connected to the tail of the working inclined plate (5) and is set as a handle. The top of the support (8) is hinged to the pressure bar (6) near the head by the pin bolt (7). The bottom of the working inclined plate (5) is provided with a claw groove (501) for engaging the head of the lifting screw (4). The top surface of the working inclined plate (5) is also provided with a rope fastening part (502) for hooking the pull rope (10).

2. The disassembly and assembly device according to claim 1, characterized in that, The top edge of the side wall of the snap-fit ​​connector (201) on both sides of the discontinuity zone is provided with a chamfer, and the bottom surface of the pre-embedded threaded sleeve (3) is lower than the bottom edge of the chamfer.

3. The disassembly and assembly device according to claim 1, characterized in that: A fin (301) is fixed on the outer wall of the pre-embedded threaded sleeve (3). The fin (301) is located in the middle of the pre-embedded threaded sleeve (3) and is embedded in the polyurethane material of the edge-wrapping area (103).

4. The disassembly and assembly device according to claim 3, characterized in that: The fin plate (301) has multiple anchoring holes evenly distributed around its circumference.

5. The disassembly and assembly device according to claim 1, characterized in that: The center of the clamp (9) is provided with a rope-tying hole (901), and the pull rope (10) is a rope loop with the ends connected and the bottom end is inserted into the rope-tying hole (901).

6. The disassembly and assembly device according to claim 1, characterized in that: The rope-tying part (502) is specifically a rope-tying cylinder. The root of the rope-tying cylinder is welded to the middle position of the top surface of the working inclined plate (5), and the top end of the pull rope (10) is sleeved on the rope-tying cylinder.

7. The disassembly and assembly device according to claim 1, characterized in that: The rope-tying part (502) is specifically made of a sharp-angled bending plate. The sharp-angled bending plate is welded to the top surface of the working inclined plate (5). The two bottom edges of the sharp-angled bending plate are respectively welded to the outer edge of the claw of the claw groove (501). The top of the sharp-angled bending plate is provided with a rope-tying inclined groove (5021) inward. The top of the pull rope (10) is sleeved in the rope-tying inclined groove (5021).

8. A method for disassembling and assembling, characterized in that: The disassembly and installation of the polyurethane screen plate with the quick-disassembly structure using the disassembly and assembly device according to any one of claims 1 to 7 includes the following steps: During disassembly, Step 1: Connect the lifting screw (4) to the hole in the pre-embedded threaded sleeve (3) with the bolt head protruding at the set height; Step 2: Place the lifting assembly onto the top surface of the adjacent polyurethane screen plate body (1), not the polyurethane screen plate body (1) that needs to be disassembled; pull the lifting assembly upwards with the lifting screw (4) to remove the polyurethane screen plate body (1) from the rail seat (2) below. During installation, Step 1: First, place the polyurethane screen plate body (1) to be installed on the rail seat (2). Note that the bottom end of the pre-embedded threaded sleeve (3) is inserted above the discontinuity area to complete the initial alignment of the polyurethane screen plate body (1) with the rail seat (2). Step 2: Stand the clamping rod (9) upright and pass it through the middle hole of the pre-embedded threaded sleeve (3) and the lower through hole (202) in sequence. After passing through completely, pull the top of the pull rope (10) so that the clamping rod (9) is horizontally clamped on the bottom surface of the rail seat (2). Step 3: Place the lifting assembly onto the top surface of the polyurethane screen plate body (1) to be installed, not on the adjacent top surface of the polyurethane screen plate body (1); the top end of the pull rope (10) is connected to the lifting assembly, and the lifting assembly pulls the clamping rod (9) to press down on the polyurethane screen plate body (1) so that it is fastened to the rail seat (2) below.

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