Screen frame capable of rapidly and conveniently loading and unloading screen

Abstract

The utility model relates to the technical field of screening equipment, and discloses a screen frame capable of quickly and conveniently assembling and disassembling a screen, which comprises a bottom frame, a supporting column is arranged on the bottom side of the bottom frame, a top frame is obliquely arranged at the top of the bottom frame, an inserting groove is formed in the left side of the top frame, a screening net frame is inserted in the inserting groove, and a handle is welded at the left end of the screening net frame. A screening net is embedded in the surface of the screening net frame, a screening cavity is reserved between the inner wall of the top frame and the screening net frame, and a discharging opening is formed in the position, opposite to the screening cavity, of the front face of the top frame. When the screening net needs to be replaced, an operator holds a handle with one hand and pulls a pull ring, the abutting effect of a wedge block on a positioning pin is eliminated, and the positioning pin is separated from a pin hole under the elastic force action of a first spring, so that the operator can conveniently and directly pull out the screening net frame from the interior of an inserting groove and replace the screening net frame, and the screening net frame is convenient to replace. And therefore, the effect of quickly replacing the screening net is achieved, and operation is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of screening equipment more particularly to a screen frame that is quick and convenient to assemble and disassemble. BACKGROUND

[0002] The screen is woven by metal wire or fiber wire, can remove and recycle different types and sizes of suspended solids, and has the advantages of simplicity, high efficiency and low operation cost. During the use of the screen, the screen is generally installed and supported by a screen frame.

[0003] After searching, the existing patent (publication number: CN210434852U) discloses a screen frame that is quick and convenient to assemble and disassemble, which is mainly composed of an upper frame and a lower frame. The structure is simple, and the manufacturing cost is low. During the use of the utility model, the screen is clamped and fixed by the upper frame and the lower frame. When the screen needs to be replaced, only the fixed rod needs to be pulled out of the fixed groove by the pull ring. The operation is simple, and the difficulty of replacing the screen is effectively reduced. However, the inventor found that the existing technology has the following problems during the implementation of the utility model: the screen frame needs to pull the fixed rod out of the fixed groove by the pull ring when the screen needs to be replaced. The number of fixed rods is two, and the two fixed rods are symmetrically arranged on both sides of the screen. Therefore, when the pull ring is pulled, additional personnel are needed to take out the screen. The operation is complicated, and it is difficult for a single person to conveniently complete the screen replacement action.

[0004] Therefore, the utility model provides a screen frame that is quick and convenient to assemble and disassemble to solve the problem. UTILITY MODEL CONTENTS

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a screen frame that is quick and convenient to assemble and disassemble to solve the problems in the background art.

[0006] The utility model provides the following technical scheme: a screen frame that is quick and convenient to assemble and disassemble, which comprises a chassis, a support column is arranged on the bottom side of the chassis, an inclined top frame is arranged on the top of the chassis, a plug-in slot is formed in the left side of the top frame, a screening mesh frame is inserted into the plug-in slot, a handle is welded to the left end of the screening mesh frame, a screening mesh is embedded on the surface of the screening mesh frame, a screening cavity is reserved between the inner wall of the top frame and the screening mesh frame, a discharge port is formed in the front of the top frame and faces the screening cavity, and a positioning assembly is arranged between the top frame and the screening mesh frame.

[0007] The positioning assembly comprises a mounting slot formed in the inside of the screening net frame, two positioning pins symmetrically and slidingly connected in the inside of the mounting slot, a pin hole formed in the inner wall of the insertion slot, the positioning pin inserted into the inside of the pin hole, and a first spring arranged in the inside of the mounting slot to drive the positioning pin to be separated from the pin hole, a first inclined surface formed at one end of the two positioning pins close to each other, a pull ring slidingly connected to the left end of the screening net frame, a rod portion of the pull ring extending into the inside of the mounting slot and fixedly arranged with a wedge, the cross section of the wedge being in the shape of an isosceles triangle, a second inclined surface symmetrically formed on the surface of the wedge, the second inclined surface corresponding to the position of the first inclined surface, and a second spring arranged in the inside of the mounting slot to drive the wedge to abut against the positioning pin.

[0008] Further, the inner wall of the screening cavity is provided with a guide slope corresponding to the discharge port; when the top frame remains in an inclined state, the guide slope is arranged to facilitate the sliding of the material out of the discharge port.

[0009] Further, the surface of the top frame is fixedly arranged with an extended slide corresponding to the discharge port; the extended slide is arranged to extend and adjust the position of the material sliding out of the discharge port, facilitating the receiving of the material.

[0010] Further, the elastic force of the second spring is much greater than that of the first spring; the elastic force of the second spring is much greater than that of the first spring, the second spring is used to drive the wedge to move, the positioning pin is clamped into the inside of the pin hole by overcoming the elastic force of the first spring, and the purpose of positioning the screening net frame is achieved.

[0011] Further, the top frame and the bottom frame are rotationally connected, a support assembly is arranged between the bottom frame and the top frame, the support assembly comprises a horizontal screw rod rotationally connected to the inner wall of the bottom frame, a moving screw block threadedly connected to the surface of the horizontal screw rod, a supporting rod rotationally connected to the surface of the moving screw block, the other end of the supporting rod rotationally connected to the bottom side of the top frame, an adjusting box fixedly arranged at the left end of the bottom frame, and a knob rotationally connected to the surface of the adjusting box and used to drive the horizontal screw rod to rotate; the top frame and the bottom frame are rotationally connected, the horizontal screw rod is rotated by the knob, the moving screw block is driven to move, the inclination of the screening net frame and the screening net is adjusted under the supporting action of the supporting rod, the speed of the material screening is conveniently adjusted, the screening net frame is folded when not in use, and the effect of reducing the storage space is achieved.

[0012] Further, the rod portion of the knob extends into the inside of the adjusting box and is fixedly arranged with a worm, the left end of the horizontal screw rod extends into the inside of the adjusting box and is fixedly arranged with a worm wheel, and the worm is engaged with the worm wheel; the transmission between the knob and the horizontal screw rod is achieved by arranging the worm engaged with the worm wheel, the self-locking effect of the worm and the worm wheel is utilized, the horizontal screw rod is prevented from rotating by itself during use, and the stability of the top frame is ensured.

[0013] Further, the top of the support column is fixedly provided with a threaded column, and the support column is threadedly connected with the base frame through the threaded column; since the support column is threadedly connected with the base frame through the threaded column, the threaded column can be disassembled and stored when not in use, so that the storage space of the whole screen frame can be further reduced.

[0014] The technical effects and advantages of the present application are as follows:

[0015] 1. The present application pours the material onto the surface of the screening net, the material smaller than the mesh diameter falls into the screening cavity, and then is discharged from the discharge port, while the material larger than the mesh diameter is intercepted on the surface of the screening net and gradually slides from the right end, realizing the material screening and separating action; when the screening net needs to be replaced, the operator holds the handle with one hand and pulls the pull ring, cancels the clamping effect of the wedge on the positioning pin, and the positioning pin is separated from the pin hole under the elastic force of the first spring, so that the operator can directly pull out the screening net frame from the inside of the insertion slot, and the screening net frame is replaced, so that the screening net can be quickly replaced, and the operation is convenient.

[0016] 2. The present application, when the top frame remains in an inclined state, the guide slope is provided, which facilitates the material to slide out of the screening cavity through the discharge port; the extension slide is provided, which can extend and adjust the position of the material sliding out of the discharge port, facilitating the reception of the material; the elastic force of the second spring is much larger than that of the first spring, after the pull ring is loosened, the driving effect of the second spring on the wedge can clamp the positioning pin into the pin hole, and the positioning effect of the screening net frame is realized.

[0017] 3. The present application, the top frame and the base frame are rotatably connected, the knob is rotated to drive the moving block to move, and the inclination of the screening net frame and the screening net can be adjusted under the support of the supporting rod, so that the speed of material screening can be adjusted conveniently, and the screening net frame can be folded when not in use, realizing the effect of reducing the storage space; the worm and the worm gear are engaged to transmit between the knob and the horizontal screw rod, the self-locking effect of the worm and the worm gear can prevent the horizontal screw rod from rotating by itself during use, and the stability of the top frame is ensured; the support column is threadedly connected with the base frame through the threaded column, and the threaded column can be disassembled and stored when not in use, so that the storage space of the whole screen frame can be further reduced. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a perspective view of the present application;

[0019] Figure 2 It is a perspective view of the screening cavity of the present application;

[0020] Figure 3The utility model discloses a perspective two three-dimensional structure schematic diagram.

[0021] Figure 4 The utility model discloses a sieve net frame inclined section structure schematic diagram.

[0022] Figure 5 The utility model discloses an adjusting box front section structure schematic diagram.

[0023] The figure mark is: 1, the underframe is set up with the support column 2, and the top of the support column 2 is fixedly installed with the threaded column 27, and the support column 2 is screwed with the underframe 1 through the threaded column 27. Specific implementation

[0024] The technical scheme in the utility model will be described below in connection with the drawings in the utility model, and in addition, the form of each structure recorded in the following implementation is only an example, and the sieve net frame of the utility model is not limited to each structure recorded in the following implementation, and all other implementation obtained by the ordinary skill in the art without making creative labor belongs to the protection scope of the utility model.

[0025] Reference Figures 1 to 5 The utility model provides a kind of sieve net frame that sieve net is quickly and conveniently loaded and unloaded, including underframe 1, the bottom side of underframe 1 is provided with support column 2, the top of support column 2 is fixedly installed with threaded column 27, support column 2 is screwed with underframe 1 by threaded column 27.

[0026] Underframe 1 is stably supported by support column 2, and support column 2 is screwed with underframe 1 by threaded column 27, when not using the sieve net frame, threaded column 27 can be disassembled and stored, so that the storage space of overall sieve net frame can be further reduced.

[0027] The top of underframe 1 is obliquely provided with top frame 3, plug-in slot 4 is set in the left side of top frame 3, sieve net frame 5 is inserted in the inside of plug-in slot 4, handle 6 is welded in the left end of sieve net frame 5, sieve net 7 is embedded on the surface of sieve net frame 5, sieve selection cavity 8 is reserved between the inner wall of top frame 3 and sieve net frame 5, discharge port 9 is set on the front surface of top frame 3 to sieve selection cavity 8, and guide slope 17 is set on the inner wall of sieve selection cavity 8 corresponding to discharge port 9.

[0028] When the top frame 3 remains in an inclined state, the guide slope 17 is arranged to facilitate the material sliding out of the discharge port 9 from the screening cavity 8.

[0029] The surface of the top frame 3 is fixedly provided with an extension slide 18 corresponding to the discharge port 9.

[0030] The extension slide 18 can extend and adjust the position of the material sliding from the discharge port 9, facilitating the receiving of the material.

[0031] The material is poured onto the surface of the screening net 7, the material smaller than the mesh diameter falls into the screening cavity 8, and then is discharged from the discharge port 9, while the material larger than the mesh diameter is intercepted on the surface of the screening net 7 and gradually slides from the right end, realizing the material screening and separating action.

[0032] The top frame 3 and the screening net frame 5 are provided with a positioning assembly.

[0033] The positioning assembly comprises a mounting slot formed in the screening net frame 5, two positioning pins 10 symmetrically and slidably connected in the mounting slot, a pin hole 11 formed in the inner wall of the insertion slot 4, the positioning pin 10 inserted in the pin hole 11, and a first spring 19 arranged in the mounting slot to drive the positioning pin 10 to disengage from the pin hole 11, and a first inclined surface 12 formed at one end of each of the two positioning pins 10.

[0034] The left end of the screening net frame 5 is slidably connected with a pull ring 13, the rod portion of the pull ring 13 extends into the mounting slot and is fixedly provided with a wedge block 14, the cross section of the wedge block 14 is isosceles triangular, a second inclined surface 15 is symmetrically formed on the surface of the wedge block 14, the second inclined surface 15 corresponds to the position of the first inclined surface 12, and a second spring 16 is arranged in the mounting slot to drive the wedge block 14 to abut against the positioning pin 10.

[0035] The elastic force of the second spring 16 is much greater than that of the first spring 19.

[0036] When it is necessary to replace the screening net 7, the operator holds the handle 6 with one hand and pulls the pull ring 13 to cancel the abutting effect of the wedge block 14 on the positioning pin 10, and under the action of the elastic force of the first spring 19, the positioning pin 10 disengages from the pin hole 11, so that the operator can directly pull out the screening net frame 5 from the inside of the insertion slot 4, replace the screening net frame 5, and quickly replace the screening net 7, which is convenient to operate.

[0037] The top frame 3 and the bottom frame 1 are rotatably connected, and the bottom frame 1 and the top frame 3 are provided with a supporting assembly.

[0038] The support assembly comprises a transverse screw rod 20 rotatably connected to the inner wall of the base frame 1, the surface of the transverse screw rod 20 is screw-connected with a moving screw block 21, the surface of the moving screw block 21 is rotatably connected with a supporting rod 22, the other end of the supporting rod 22 is rotatably connected with the bottom side of the top frame 3, the left end of the base frame 1 is fixedly installed with an adjusting box 23, the surface of the adjusting box 23 is rotatably connected with a knob 24 for driving the transverse screw rod 20 to rotate.

[0039] The rod part of the knob 24 extends to the inside of the adjusting box 23 and is fixedly installed with a worm 25, the left end of the transverse screw rod 20 extends to the inside of the adjusting box 23 and is fixedly installed with a worm wheel 26, and the worm 25 is engaged with the worm wheel 26.

[0040] Through the rotatable connection between the top frame 3 and the base frame 1, the transverse screw rod 20 is rotated through the knob 24, the moving screw block 21 can be driven to move, under the supporting action of the supporting rod 22, the inclination of the screening net frame 5 and the screening net 7 can be adjusted, so that the speed of material screening is conveniently adjusted, and when not in use, the top frame 3 and the screening net frame 5 can be folded to realize the effect of reducing the storage space.

[0041] Further, the transmission between the knob 24 and the transverse screw rod 20 is achieved by the engagement of the worm 25 and the worm wheel 26, and by using the self-locking effect of the worm 25 and the worm wheel 26, the transverse screw rod 20 can be prevented from rotating by itself during use, and the stability of the top frame 3 is ensured.

[0042] Finally, it should be pointed out that: the utility model discloses the embodiment attached drawing only relates to the structure involved in the embodiment of the present disclosure, other structures can refer to the usual design, under the condition of no conflict, the same embodiment and different embodiments of the utility model can be combined with each other.

Claims

1. A screen rack with quick and convenient screen loading and unloading, comprising a base frame (1), characterized in that: The bottom side of the base frame (1) is provided with a support column (2), the top of the base frame (1) is provided with a top frame (3) at an angle, a plug-in slot (4) is provided on the left side of the top frame (3), a screening material grid frame (5) is inserted into the plug-in slot (4), a handle (6) is welded to the left end of the screening material grid frame (5), a screening net (7) is embedded on the surface of the screening material grid frame (5), a screening material cavity (8) is reserved between the inner wall of the top frame (3) and the screening material grid frame (5), a discharge port (9) is provided on the front of the top frame (3) facing the screening material cavity (8), and a positioning component is provided between the top frame (3) and the screening material grid frame (5); The positioning assembly includes a mounting groove provided inside the screening material grid (5), two positioning pins (10) are symmetrically and slidably connected inside the mounting groove, a pin hole (11) is provided on the inner wall of the plug-in groove (4), the positioning pin (10) is inserted inside the pin hole (11), and a first spring (19) is provided inside the mounting groove for driving the positioning pin (10) to disengage from the pin hole (11), a first inclined surface (12) is provided at one end of the two positioning pins (10) that are close to each other, a pull ring (13) is slidably connected to the left end of the screening material grid (5), the rod of the pull ring (13) extends to the inside of the mounting groove and is fixedly installed with a wedge (14), the cross section of the wedge (14) is an isosceles triangle, and a second inclined surface (15) is symmetrically provided on the surface of the wedge (14), the second inclined surface (15) corresponds to the position of the first inclined surface (12), and a second spring (16) is provided inside the mounting groove for driving the wedge (14) to press against the positioning pin (10).

2. A screen rack with quick and convenient screen loading and unloading according to claim 1, characterized in that: The inner wall of the screening cavity (8) is provided with a guide slope (17) corresponding to the discharge port (9).

3. A screen rack with quick and convenient screen loading and unloading according to claim 1, characterized in that: An extension slideway (18) is fixedly mounted on the surface of the top frame (3) corresponding to the discharge port (9).

4. A screen rack with quick and convenient screen loading and unloading according to claim 1, characterized in that: The elastic force of the second spring (16) is much greater than the elastic force of the first spring (19).

5. The screen rack with quick and convenient screen loading and unloading according to claim 1, characterized in that: The top frame (3) and the bottom frame (1) are rotatably connected, and a support assembly is provided between the bottom frame (1) and the top frame (3).

6. A screen stand with quick and convenient screen installation and removal according to claim 5, characterized in that: The support assembly includes a transverse screw rod (20) rotatably connected to the inner wall of the base frame (1), a surface of the transverse screw rod (20) is threadedly connected to a moving screw block (21), a surface of the moving screw block (21) is rotatably connected to a support rod (22), the other end of the support rod (22) is rotatably connected to the bottom side of the top frame (3), an adjustment box (23) is fixedly installed at the left end of the base frame (1), and a surface of the adjustment box (23) is rotatably connected to a knob (24) for driving the transverse screw rod (20) to rotate.

7. A screen stand with quick and convenient screen installation and removal according to claim 6, characterized in that: The rod portion of the knob (24) extends into the interior of the regulating box (23) and is fixedly mounted with a worm (25). The left end of the transverse screw rod (20) extends into the interior of the regulating box (23) and is fixedly mounted with a worm wheel (26). The worm (25) is meshed with the worm wheel (26).

8. The screen rack with quick and convenient screen installation and removal according to claim 1, characterized in that: A threaded column (27) is fixedly mounted on the top of the support column (2), and the support column (2) is threadedly connected to the base frame (1) via the threaded column (27).

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