Mortar fineness negative pressure screen analysis instrument and use method thereof

Abstract

The mortar fineness negative pressure screen analysis instrument comprises a machine body, side blocks are fixed to the side walls of the two sides of the machine body, vertical holes are formed in the side blocks, an opening and closing door is arranged on the machine body, a stop lever is slidably connected to the opening and closing door, the two ends of the stop lever are bent to be slidably connected with the side walls of the machine body, and the vertical holes are formed in the vertical holes. And the stop lever can slide with the machine body and the opening and closing door. In the invention, through the cooperation of the stop lever and the opening and closing door and the design of the connecting piece and the locking piece, the opening and closing door is effectively locked when the equipment runs, the situation that the normal work of the equipment is influenced by accidental opening is prevented, and meanwhile, the opening and closing door can be conveniently opened through a series of reasonable operation steps during maintenance, so that a convenient maintenance channel is provided for maintenance personnel, and the maintenance efficiency is improved. A worker only needs to unlock the opening and closing door in advance, and a maintainer can release limitation on the opening and closing door by controlling the stop lever.

Description

Technical Field

[0001] The present invention relates to the technical field of negative pressure sieving instruments, and in particular to a negative pressure sieving instrument for measuring mortar fineness and a method for using the same. Background Art

[0002] The opening and closing doors of the mortar fineness negative pressure sieve analyzer mostly use mechanical door locks. Therefore, when it is inspected and maintained, the staff needs to unlock it so that the maintenance personnel can open the opening and closing doors to carry out maintenance work inside.

[0003] If the staff unlocks the opening and closing door in advance, the opening and closing door may accidentally open due to external force, thereby endangering the internal components of the mortar fineness negative pressure sieve analyzer. Therefore, the traditional mortar fineness negative pressure sieve analyzer can be improved to increase the limiting structure of the opening and closing door, thereby avoiding the above-mentioned problems. Summary of the invention

[0004] The purpose of the present invention is to solve the above-mentioned problem and to propose a mortar fineness negative pressure sieving instrument and a method of using the same.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A mortar fineness negative pressure sieve analyzer comprises a body, side blocks are fixed on both side walls of the body, and vertical holes are opened on the side blocks, an opening and closing door is provided on the body, a baffle rod is slidably connected to the opening and closing door, both ends of the baffle rod are bent and slidably connected to the side walls of the body, and the baffle rod slides with the body and the opening and closing door, round rods are fixed on both ends of the baffle rod, the round rods are slidably connected to the vertical holes, and an end block is fixed to the bottom of the round rod, the end block and the body are fixed as a whole through a connecting piece, a spring is sleeved on the round rod, one end of the spring is fixedly connected to the end block, and the other end is fixedly connected to the lower surface of the side block, and the elastic force of the spring pushes the end block to move downward, so the baffle rod moves downward under the elastic force of the spring.

[0006] Preferably, the connecting member includes a bottom block fixed on the end block, a bent plate is also fixed on the end block, and a transverse hole is provided on the bent plate, a through hole corresponding to the transverse hole is provided on the bottom block, a push-pull rod is slidably connected to the transverse hole, a card block slidably connected to the through hole is fixed on the push-pull rod, a card slot one adapted to the card block is provided on the side wall of the body, and the card block extends into the card slot one through the through hole.

[0007] Preferably, a second card slot corresponding to the first card slot is provided on the machine body, and when the card block is inserted into the second card slot, the baffle rod is not slidably connected to the opening and closing door, that is, the opening and closing door can be opened and closed normally without being restricted by the baffle rod. When the card block is inserted into the first card slot, the baffle rod is slidably connected to the opening and closing door, and the opening and closing door cannot be rotated to open at this time, and the baffle rod restricts the opening and closing door.

[0008] Preferably, a disc is fixed on the block, and the disc abuts against the side wall of the bottom block, and a second spring is sleeved on the push-pull rod, and the second spring pushes the disc to move, so the block moves with the disc until the block extends into the first slot or the second slot, and the blocking rod is directly fixed to the body by a locking piece.

[0009] Preferably, the locking member comprises a convex plate fixed on the baffle rod, and a middle hole is formed on the convex plate, a screw groove corresponding to the middle hole is formed on the machine body, and a screw block is connected to the screw groove through a thread, and a convex rod slidably connected to the middle hole is fixed on the screw block.

[0010] Preferably, a fixing disk is fixed on the screw block, and a corresponding groove is provided on the fixing disk, a side hole is provided on the convex plate, and a magnetic rod passes through the side hole, and the end of the magnetic rod is magnetically attracted to the corresponding groove.

[0011] Preferably, the side holes are provided on the convex plate at equal angles around the circumference with the center of the middle hole as the axis.

[0012] A method for using a mortar fineness negative pressure sieve analyzer comprises the following steps: Step 1: Use the key to unlock the door and wait for maintenance personnel to repair the machine; Step 2: Pull out the magnetic rod until it is separated from the corresponding groove and the side hole. At this time, the magnetic rod releases the restriction on the fixed plate, that is, the magnetic rod releases the restriction on the screw block. Rotate the screw block so that the screw block extends into the screw groove during rotation until the convex rod fixed on the screw block is separated from the middle hole opened on the convex plate. At this time, the convex rod releases the fixation of the convex plate, and the convex rod releases the fixation of the blocking rod; Step 3: Apply force to the push-pull rod, causing the push-pull rod end to get stuck When the lever is disengaged from the first card slot, the second spring is compressed, pushing the blocking rod upward, so that the blocking rod moves from the opening and closing door to the sliding connection with the machine body. At this time, the blocking rod does not block the opening and closing of the opening and closing door. When the blocking rod moves up to the card block aligning with the second card slot, the pulling force on the push-pull rod is released. Under the elastic force of the second spring, the card block at the end of the push-pull rod extends into the second card slot provided on the side wall of the machine body, and the disc abuts against the side wall of the bottom block at this time. Step 4: The position of the blocking rod is fixed, the opening and closing door is free from the restriction of the blocking rod, and the door lock of the opening and closing door is unlocked, so the maintenance personnel can push and pull the opening and closing door to rotate the opening and closing door, thereby exposing the components inside the machine body, which is convenient for maintenance work inside the machine body. In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. This application realizes the effective locking of the opening and closing door when the equipment is running through the coordination of the blocking rod and the opening and closing door and the design of the connecting parts and the locking parts, thereby preventing accidental opening from affecting the normal operation of the equipment. At the same time, during maintenance, the opening and closing door can be easily opened through a series of reasonable operating steps, providing maintenance personnel with a convenient maintenance channel. The staff only needs to unlock the opening and closing door in advance, and the maintenance personnel can remove the restriction on the opening and closing door by controlling the blocking rod.

[0013] 2. The present application ensures a stable connection between the end block and the machine body through the structural design of the connecting parts. Through the coordination of the bottom block, bent plate, push-pull rods and other components, as well as the reliable connection between the card block and the card slot, it can effectively prevent loosening or connection failure during the operation of the equipment, thereby ensuring the stability of the baffle operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The overall structure schematic diagram of the negative pressure sieving instrument for mortar fineness provided in accordance with an embodiment of the present invention is shown; Figure 2 A partial structural schematic diagram of a negative pressure sieve analyzer for mortar fineness provided according to an embodiment of the present invention is shown; Figure 3 A schematic diagram of the structure of a blocking rod portion provided according to an embodiment of the present invention is shown.

[0015] Legend: 1. Machine body; 2. Opening and closing door; 3. Side block; 4. Vertical hole; 5. Card slot 1; 6. Card slot 2; 7. Stop rod; 8. Round rod; 9. Spring 1; 10. End block; 11. Bottom block; 12. Through hole; 13. Bend plate; 14. Horizontal hole; 15. Push-pull rod; 16. Round plate; 17. Card block; 18. Spring 2; 19. Protruding plate; 20. Middle hole; 21. Side hole; 22. Screw groove; 23. Screw block; 24. Protruding rod; 25. Fixed plate; 26. Corresponding groove; 27. Magnetic rod. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] See also Figure 1-Figure 3 , the present invention provides a technical solution: A negative pressure sieve analyzer for mortar fineness comprises a body 1, side blocks 3 are fixed on both side walls of the body 1, and vertical holes 4 are opened on the side blocks 3, an opening and closing door 2 is arranged on the body 1, the opening and closing door 2 is rotatably connected to the body 1, and the door lock of the opening and closing door 2 is a mechanical lock core structure, which is a direct reference to the prior art and is not described in detail here, a blocking rod 7 is slidably connected to the opening and closing door 2, and the two ends of the blocking rod 7 are bent and slidably connected to the side walls of the body 1, and the blocking rod 7 is connected to the body 1 and the opening and closing door 2. The door 2 slides, and round rods 8 are fixed to both ends of the stop rod 7 respectively. The round rod 8 is slidably connected to the vertical hole 4, and an end block 10 is fixed to the bottom of the round rod 8. The end block 10 is fixed to the body 1 as a whole through a connecting piece. A spring 9 is sleeved on the round rod 8, and one end of the spring 9 is fixedly connected to the end block 10, and the other end is fixedly connected to the lower surface of the side block 3. The elastic force of the spring 9 pushes the end block 10 to move downward, so the stop rod 7 moves downward under the elastic force of the spring 9.

[0018] The sliding connection parts of the lever 7, the door 2 and the body 1 are made of wear-resistant materials to reduce friction loss and increase the service life of the lever 7. At the same time, a handle is fixed on the lever 7 by bolts to facilitate the operation of the operator, and the handle part of the lever 7 is provided with an anti-slip texture.

[0019] Specifically, Figure 1 As shown, the connecting member includes a bottom block 11 fixed on the end block 10, a bent plate 13 is also fixed on the end block 10, and a transverse hole 14 is provided on the bent plate 13, a through hole 12 corresponding to the transverse hole 14 is provided on the bottom block 11, a push-pull rod 15 is slidably connected to the transverse hole 14, a block 17 slidably connected to the through hole 12 is fixed on the push-pull rod 15, a slot 5 matched with the block 17 is provided on the side wall of the body 1, and the block 17 penetrates the through hole 12 and extends into the slot 5.

[0020] Specifically, Figure 3 As shown, the machine body 1 is provided with a second card slot 6 corresponding to the first card slot 5, and when the card block 17 is inserted into the second card slot 6, the stopper 7 is not slidably connected with the opening and closing door 2, that is, the opening and closing door 2 can be opened and closed normally without being restricted by the stopper 7. When the card block 17 is inserted into the first card slot 5, the stopper 7 is slidably connected with the opening and closing door 2, and the opening and closing door 2 cannot be rotated to open at this time, and the stopper 7 restricts the opening and closing door 2. A disc 16 is fixed on the card block 17, and the disc 16 abuts against the side wall of the bottom block 11. A spring 2 18 is sleeved on the push-pull rod 15, and the spring 2 18 pushes the disc 16 to move, so the card block 17 moves with the disc 16 until the card block 17 is inserted into the first card slot 5 or the second card slot 6, and the stopper 7 is directly fixed to the machine body 1 through a locking member.

[0021] The push-pull rod 15 is marked with an arrow indicating the direction of force application so that the operator can more easily understand it. At the same time, the operator should be reminded to apply force appropriately to avoid damage to the push-pull rod 15 or its related parts due to excessive force. After the block 17 at the end of the push-pull rod 15 is separated from the card slot 1 5, the position of the block 17 should be observed in time to ensure that it can be accurately aligned with the card slot 2 6.

[0022] Specifically, Figure 3 As shown, the locking member includes a convex plate 19 fixed on the blocking rod 7, and a middle hole 20 is formed on the convex plate 19, a screw groove 22 corresponding to the middle hole 20 is formed on the machine body 1, and a screw block 23 is connected to the screw groove 22 by a thread, and a convex rod 24 slidably connected to the middle hole 20 is fixed on the screw block 23. A fixing plate 25 is fixed on the screw block 23, and a corresponding groove 26 is formed on the fixing plate 25, and a side hole 21 is formed on the convex plate 19, and a magnetic rod 27 passes through the side hole 21, and the end of the magnetic rod 27 is magnetically attracted to the corresponding groove 26. There are multiple side holes 21 on the convex plate 19 with the center of the middle hole 20 as the axis, and the circumference is distributed at equal angles.

[0023] The magnetic attraction between the magnetic rod 27 and the corresponding slot 26 and the side hole 21 is made of strong magnetic material, such as a neodymium iron boron magnet, to ensure the firmness of the attraction, thereby effectively preventing the magnetic rod 27 from easily escaping from the corresponding slot 26 or the side hole 21.

[0024] A method for using a mortar fineness negative pressure sieve analyzer comprises the following steps: Step 1: Use the key to unlock the door 2 and wait for the maintenance personnel to perform maintenance on the machine body 1; Step 2: Pull out the magnetic rod 27 until the magnetic rod 27 is separated from the corresponding groove 26 and the side hole 21. At this time, the magnetic rod 27 releases the restriction on the fixed plate 25, that is, the magnetic rod 27 releases the restriction on the screw block 23, and rotates the screw block 23 so that the screw block 23 extends into the screw groove 22 during rotation until the protruding rod 24 fixed on the screw block 23 is separated from the middle hole 20 opened on the protruding plate 19. At this time, the protruding rod 24 releases the fixation on the protruding plate 19, and the protruding rod 24 releases the fixation on the blocking rod 7; Step three: Mark the direction of force application with an arrow on the push-pull rod 15 so that maintenance personnel can more easily understand the direction of force application of the push-pull rod 15. At the same time, remind the operator to apply force moderately to avoid damage to the push-pull rod 15 or its related parts due to excessive force. Apply force to the push-pull rod 15, so that the block 17 at the end of the push-pull rod 15 disengages from the slot 1 5. At this time, the spring 2 18 is compressed, pushing the baffle rod 7 upward, so that the baffle rod 7 moves from the opening and closing door 2 to the sliding connection with the body 1. At this time, the baffle rod 7 does not block the opening and closing of the opening and closing door 2. When the baffle rod 7 moves up to the block 17 and aligns with the slot 2 6, the pulling force on the push-pull rod 15 is released. Under the elastic force of the spring 2 18, the block 17 at the end of the push-pull rod 15 extends into the slot 2 6 opened on the side wall of the body 1, and the disc 16 is now in contact with the side wall of the bottom block 11; Step 4: The position of the stopper 7 is fixed, the opening and closing door 2 is no longer restricted by the stopper 7, and the door lock of the opening and closing door 2 has been unlocked, so the maintenance personnel can push and pull the opening and closing door 2 to rotate the opening and closing door 2, thereby exposing the internal components of the machine body 1, which is convenient for the maintenance work inside the machine body 1. When the maintenance personnel push and pull the opening and closing door 2, they can operate slowly to avoid damage to the connection between the opening and closing door 2 and the machine body 1 due to excessive force. At the same time, pay attention to the rotation angle of the opening and closing door 2 to prevent it from rotating excessively and hitting other components inside the machine body 1, causing unnecessary damage.

[0025] The above description of the embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A negative pressure sieve analyzer for mortar fineness, comprising a body (1), characterized in that: Side blocks (3) are fixed to both side walls of the machine body (1), and vertical holes (4) are formed on the side blocks (3). An opening and closing door (2) is provided on the machine body (1), and a blocking rod (7) is slidably connected to the opening and closing door (2). The two ends of the blocking rod (7) are bent and slidably connected to the side walls of the machine body (1), and the blocking rod (7) slides with the machine body (1) and the opening and closing door (2). Round rods (8) are fixed to the two ends of the blocking rod (7), and the round rods (8) are slidably connected to the opening and closing door (2). The vertical hole (4) is slidably connected, and an end block (10) is fixed at the bottom of the round rod (8), and the end block (10) is fixed to the body (1) as a whole through a connecting piece. A spring (9) is sleeved on the round rod (8), and one end of the spring (9) is fixedly connected to the end block (10), and the other end is fixedly connected to the lower surface of the side block (3), and the elastic force of the spring (9) pushes the end block (10) to move downward, so the stop rod (7) moves downward under the elastic force of the spring (9).

2. A mortar fineness negative pressure sieve analyzer according to claim 1, characterized in that: The connecting member comprises a bottom block (11) fixed on the end block (10); a bent plate (13) is also fixed on the end block (10), and a transverse hole (14) is provided on the bent plate (13); a through hole (12) corresponding to the transverse hole (14) is provided on the bottom block (11); a push-pull rod (15) is slidably connected to the transverse hole (14); a clamping block (17) slidably connected to the through hole (12) is fixed on the push-pull rod (15); a clamping groove (5) matched with the clamping block (17) is provided on the side wall of the body (1); the clamping block (17) passes through the through hole (12) and extends into the clamping groove (5).

3. A mortar fineness negative pressure sieve analyzer and its use method according to claim 2, characterized in that: The body (1) is provided with a second card slot (6) corresponding to the first card slot (5), and when the card block (17) extends into the second card slot (6), the blocking rod (7) is not slidably connected with the opening and closing door (2), that is, the opening and closing door (2) can be opened and closed normally without being restricted by the blocking rod (7); when the card block (17) extends into the first card slot (5), the blocking rod (7) is slidably connected with the opening and closing door (2), and at this time the opening and closing door (2) cannot be rotated to open, and the blocking rod (7) restricts the opening and closing door (2).

4. A mortar fineness negative pressure sieve analyzer according to claim 3, characterized in that: A disc (16) is fixed on the block (17), and the disc (16) abuts against the side wall of the bottom block (11). A second spring (18) is sleeved on the push-pull rod (15), and the second spring (18) pushes the disc (16) to move, so the block (17) moves together with the disc (16) until the block (17) extends into the first slot (5) or the second slot (6). The blocking rod (7) is directly fixed to the body (1) by a locking member.

5. A mortar fineness negative pressure sieve analyzer according to claim 4, characterized in that: The locking member comprises a convex plate (19) fixed on the blocking rod (7), and a middle hole (20) is formed on the convex plate (19); a screw groove (22) corresponding to the middle hole (20) is formed on the machine body (1), and a screw block (23) is connected to the screw groove (22) via a thread, and a convex rod (24) slidably connected to the middle hole (20) is fixed on the screw block (23).

6. A mortar fineness negative pressure sieve analyzer according to claim 5, characterized in that: A fixing plate (25) is fixed on the screw block (23), and a corresponding groove (26) is formed on the fixing plate (25). A side hole (21) is formed on the convex plate (19), and a magnetic attraction rod (27) penetrates the side hole (21). The end of the magnetic attraction rod (27) is magnetically attracted to the corresponding groove (26).

7. A negative pressure sieve analyzer for mortar fineness according to claim 6, characterized in that: The side holes (21) are arranged on the convex plate (19) with the center of the middle hole (20) as the axis and are distributed at equal angles around the circumference.

8. A method for using the negative pressure sieve analyzer for mortar fineness according to any one of claims 1 to 7, characterized in that: The following steps are involved: Step 1: Use the key to unlock the door (2) and wait for maintenance personnel to repair the machine body (1); Step 2: Pull out the magnetic rod (27) until the magnetic rod (27) is separated from the corresponding groove (26) and the side hole (21). At this time, the magnetic rod (27) releases the restriction on the fixed plate (25), that is, the magnetic rod (27) releases the restriction on the screw block (23), and rotates the screw block (23) so that the screw block (23) extends into the screw groove (22) during rotation until the protruding rod (24) fixed on the screw block (23) is separated from the middle hole (20) opened on the protruding plate (19). At this time, the protruding rod (24) releases the fixation on the protruding plate (19), and the protruding rod (24) releases the fixation on the blocking rod (7); Step 3: Apply force to the push-pull rod (15), thereby causing the block (17) at the end of the push-pull rod (15) to be blocked. When the blocking rod (7) is disengaged from the first card slot (5), the second spring (18) is compressed, pushing the blocking rod (7) upward, so that the blocking rod (7) moves from the opening and closing door (2) to a sliding connection with the machine body (1). At this time, the blocking rod (7) does not block the opening and closing of the opening and closing door (2). When the blocking rod (7) moves up until the blocking block (17) is aligned with the second card slot (6), the pulling force on the push-pull rod (15) is released. Under the elastic force of the second spring (18), the blocking block (17) at the end of the push-pull rod (15) extends into the second card slot (6) provided on the side wall of the machine body (1), and at this time, the disc (16) abuts against the side wall of the bottom block (11); Step 4: The position of the stopper (7) is fixed, the opening and closing door (2) is no longer restricted by the stopper (7), and the door lock of the opening and closing door (2) is unlocked. Therefore, the maintenance personnel can push and pull the opening and closing door (2) to rotate the opening and closing door (2), thereby exposing the internal components of the machine body (1), thereby facilitating maintenance work inside the machine body (1).

Images