Nuclear medicine waste gas filter box

Abstract

The utility model relates to the field of waste gas filtering boxes, and discloses a nuclear medicine waste gas filtering box which comprises a body, a box door is arranged on the front surface of the body, a mounting opening is formed in the front portion of the body, dismounting and mounting assemblies are arranged on the portions, located on the two sides of the mounting opening, of the front surface of the body, and each dismounting and mounting assembly comprises a round clamping ball and a round clamping groove. A circular groove is formed in the front end of the body and located on the left side of the mounting opening, a sliding groove is formed in the front end of the body and located on the right side of the circular groove, and positioning blocks are fixedly connected to the front and rear surfaces of the left side of a circular clamping ball. According to the utility model, the guide block is moved downwards to drive the moving block to move downwards to release the limit to the circle center clamping ball, at the moment, the box door can be directly pulled out to drive the adsorption layer to move out for replacement, and during installation, the circular clamping ball is clamped into the circular clamping groove to be matched with the moving block and the threaded rod to realize quick limit; furthermore, the adsorption layer can be conveniently and quickly replaced, so that the disassembly and assembly efficiency and the filtering efficiency are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of waste gas filter box especially relates to a nuclear medicine waste gas filter box. BACKGROUND

[0002] In the field of nuclear medicine, the treatment of radioactive waste gas is a crucial link, among them, the nuclear medicine waste gas filter box as the key equipment, undertakes the heavy responsibility of removing radioactive material in radioactive waste gas, these filter boxes usually adopt multistage filtration system, including filter and adsorption material layer etc., after adsorption filtration treatment can discharge to the atmosphere.

[0003] However, in practical application, the replacement of adsorption material faces a series of inconvenience and challenge, since the traditional access door is usually fixed by a plurality of bolts, therefore when needing to replace the adsorption material, needs to use the special bolt tool to remove the plurality of bolts one by one, and the bolt removal needs to be screwed one by one, therefore needs to spend more time and physical strength, further reduces the dismounting replacement efficiency, further reduces the waste gas treatment efficiency, for this, a nuclear medicine waste gas filter box is provided to solve the above problems. UTILITY MODEL CONTENT

[0004] In order to make up for the above shortcomings, the utility model provides a nuclear medicine waste gas filter box, aims at improving the prior art "when replacing the adsorption material, the traditional bolt installation and removal needs to spend more time, reduces the replacement efficiency".

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: a nuclear medicine waste gas filter box, including the body, the front surface of the body is provided with the door, the front of the body is provided with the installation port, the front surface of the body is provided with the dismounting assembly on the both sides of the installation port, the dismounting assembly includes the circular ball and the circular slot, the front end of the body is provided with the circular groove on the left side of the installation port, the front end of the body is provided with the sliding slot on the right side of the circular groove, the front and back surfaces of the left side of the circular ball are all fixedly connected with the positioning block, the front and back surfaces of the circular groove are all provided with the positioning groove, the inner wall of the sliding slot is slidably connected with the moving block, the front surface of the moving block is fixedly connected with the moving rod, the front end of the body is provided with the moving groove in front of the sliding slot and penetratingly communicated with the sliding slot, the front surface of the moving rod is fixedly connected with the guide rod, and the bottom end of the guide rod is fixedly connected with the guide block.

[0006] As a further description of the above technical scheme:

[0007] The inner wall of the installation port is provided with the sealing assembly, and the sealing assembly includes the triangular inclined block and the sealing rubber strip.

[0008] As a further description of the above technical scheme:

[0009] The front surface of the guide block is threaded through and connected to a threaded rod, and the bottom of the front surface of the main body is provided with a threaded groove on the left side of the guide rod.

[0010] As a further description of the above technical solution:

[0011] The threaded rod is threadedly connected to the threaded groove, and the circular slots are opened on the left and right sides of the door and are evenly distributed in multiple sets. The circular ball is slidably connected to the inner wall of the circular slot.

[0012] As a further description of the above technical solution:

[0013] The positioning block is slidably connected to the inner wall of the positioning groove, the moving block is set in a trapezoidal shape, and the moving rod passes through and is slidably connected to the inner wall of the moving groove.

[0014] As a further description of the above technical solution:

[0015] Multiple sets of the guide rod, moving block, circular retaining ball, and moving groove are provided. The multiple sets of the guide rod, moving block, circular retaining ball, and moving groove are symmetrically arranged with the center line of the guide block as the axis of symmetry. The multiple sets of the moving block and circular retaining ball are correspondingly arranged with the multiple sets of circular retaining grooves.

[0016] As a further description of the above technical solution:

[0017] The triangular bevel blocks are triangular in shape and there are two sets of them. The two sets of triangular bevel blocks are respectively fixedly connected to the inner walls of the left and right sides of the rear surface of the mounting port.

[0018] As a further description of the above technical solution:

[0019] The sealing strip is provided in two sets, and the two sets of sealing strips are respectively fixedly connected to the left and right sides of the rear surface of the door and are corresponding to the two sets of triangular inclined blocks. The sealing strip is triangular in shape and slides against the inclined surface of the triangular inclined block.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, a circular locking ball and a moving block are set on the main body, and a circular locking groove is opened on the door. When the door needs to be removed, the guide block moves downward to drive the moving block to move downward to release the restriction on the central locking ball. At this time, the door can be pulled out directly to remove the adsorption layer for replacement. During installation, the circular locking ball is inserted into the circular locking groove in conjunction with the moving block and the threaded rod to quickly limit the position, thereby facilitating the quick replacement of the adsorption layer and improving the disassembly and assembly efficiency and filtration efficiency.

[0022] 2. The utility model discloses a sealing strip is fixed to the rear surface of the box door, and the sealing strip is provided with a triangular shape, and the top and bottom of the box door are all fixed with long strip sealing strips, and the triangular inclined block is fixed to the inner wall of the mounting port, so that the triangular sealing strip can extrude the triangular inclined block, the triangular sealing strip is deformed and closely attached to the surface of the triangular inclined block, and the sealing property of the box door and the body is improved, and gas leakage from the box door is prevented. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is the three-dimensional structure schematic diagram of the whole device in the utility model;

[0024] Figure 2 It is the three-dimensional structure split schematic diagram of the box door, the filter frame and the body in the utility model;

[0025] Figure 3 It is the three-dimensional structure section schematic diagram of the body and the guide block in the utility model;

[0026] Figure 4 It is the three-dimensional structure section of the body and the positioning groove, the positioning block and the circular clamping ball in the utility model;

[0027] Figure 5 It is the three-dimensional structure split and rear view schematic diagram of the guide block and the threaded rod, the moving block, the moving rod and the guide rod in the utility model.

[0028] Legend:

[0029] 1, the body; 2, the box door; 3, sealing strip; 4, mounting port; 21, guide rod; 22, threaded rod; 23, guide block; 24, circular clamping groove; 25, circular clamping ball; 26, positioning groove; 27, positioning block; 28, sliding slot; 29, circular groove; 210, moving groove; 211, moving block; 212, moving rod; 213, threaded groove; 31, triangular inclined block. DETAILED DESCRIPTION

[0030] The technical scheme in the embodiments of the utility model will be described clearly and completely in conjunction with the drawings of the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0031] Reference Figure 2 , Figure 3 and Figure 4The utility model provides an embodiment: a kind of nuclear medicine waste gas filter box, including body 1, body 1 is the main body of nuclear medicine waste gas filter box in prior art, the front surface of body 1 is provided with the door 2 for replacing adsorption layer, the rear surface of door 2 is fixedly connected with the adsorption layer frame body of installing adsorption layer, and the adsorption layer frame body is arranged in the inside of installation port 4 and body 1, and the front of body 1 is provided with the installation port 4 for providing the opening and space of installation, and the front surface of body 1 is provided with the dismounting assembly for quickly replacing door 2 and adsorption layer frame body on the left and right sides of installation port 4, and the dismounting assembly includes circular ball 25 and circular slot 24, and circular ball 25 is clamped into circular slot 24 to limit door 2, and vice versa, and it can be released from limiting, and the front end of body 1 is provided with the circular groove 29 for providing the movement of circular ball 25 on the left side of installation port 4, and the front end of body 1 is provided with the sliding groove 28 for providing the space of the movement of moving block 211 on the right side of circular groove 29, and the left side front and back surface of circular ball 25 is fixedly connected with the positioning groove 26 for supporting circular ball 25, and the positioning block 27 is only horizontally moved left and right and the distance of its movement is limited, and the front and back surface of circular groove 29 is provided with the positioning groove 26 for providing the space of the movement of positioning block 27.

[0032] Referring to Figure 1 , Figure 4 and Figure 5 , the inner wall of sliding groove 28 is slidably connected with moving block 211 for pushing circular ball 25 to move outward and be clamped into circular slot 24 to limit door 2, and the front surface of moving block 211 is fixedly connected with moving rod 212 for driving moving block 211 to move vertically up and down, and the front end of body 1 is provided with moving groove 210 for providing the space of the movement of moving rod 212 on the front of sliding groove 28 and in communication with sliding groove 28, and the front surface of moving rod 212 is fixedly connected with guide rod 21 for driving multiple moving rods 212 to move vertically up and down, and guide rod 21 is provided with two groups and is symmetrically arranged, and the bottom end of guide rod 21 is fixedly connected with guide block 23 for driving two groups of guide rods 21 to move vertically up and down.

[0033] Referring to Figure 2 , Figure 3 and Figure 4 , the inner wall of installation port 4 is provided with sealing assembly for increasing the sealing property of installation of door 2 and body 1, and sealing assembly includes triangular inclined block 31 and sealing rubber strip 3, and the inclined surface of triangular inclined block 31 extrudes triangular sealing rubber strip 3, so that sealing rubber strip 3 is deformed and closely adheres to the inclined surface of triangular inclined block 31, and the top and bottom of door 2 are both fixed with strip-shaped sealing rubber strip 3, which can increase the sealing property of top and bottom.

[0034] Referring to Figure 3 , Figure 4 and Figure 5The front surface of the guide block 23 is penetrated and threaded with a threaded rod 22 capable of limiting the guide block 23, the bottom of the front surface of the body 1 is provided with a threaded groove 213 on the left side of the guide rod 21, and the threaded rod 22 is stably limited with the guide block 23 and the moving block 211 after being threaded with the threaded groove 213, at this time, the circular clamping ball 25 can be limited in the circular clamping groove 24 through the moving block 211 to limit the cabinet door 2, the threaded rod 22 is threaded with the threaded groove 213, the circular clamping groove 24 is provided on the left and right sides of the cabinet door 2 and uniformly provided with multiple groups, the circular clamping ball 25 is slidingly connected to the inner wall of the circular groove 29, the positioning block 27 is slidingly connected to the inner wall of the positioning groove 26, and the moving block 211 is provided in a trapezoidal shape. By setting the trapezoidal shape and the inclined surface at the top, the circular clamping ball 25 can be moved outward by the inclined surface, so that the circular clamping ball 25 is clamped into the circular clamping groove 24 to quickly limit the cabinet door 2.

[0035] Further, the moving rod 212 is penetrated and slidingly connected to the inner wall of the moving groove 210, the guide rod 21, the moving block 211, the circular clamping ball 25 and the moving groove 210 are provided with multiple groups, the multiple groups of the guide rod 21, the moving block 211, the circular clamping ball 25 and the moving groove 210 are symmetrically arranged with the center line of the guide block 23 as the axis of symmetry, the multiple groups of the moving block 211 and the circular clamping ball 25 are correspondingly arranged with the multiple groups of the circular clamping groove 24, and multiple groups are arranged to increase the stability of the limiting. At the same time, multiple groups can be moved by the guide block 23 and the guide rod 21, improving the convenience.

[0036] Referring to Figure 2 , Figure 3 and Figure 4 , the triangular inclined block 31 is provided in a triangular shape and provided with two groups, and the two groups of triangular inclined blocks 31 are respectively fixedly connected to the inner walls on the left and right sides of the rear surface of the mounting port 4. The sealing rubber strip 3 is provided with two groups, and the two groups of sealing rubber strips 3 are respectively fixedly connected to the left and right sides of the rear surface of the cabinet door 2 and correspondingly arranged with the two groups of triangular inclined blocks 31. The sealing rubber strip 3 is provided in a triangular shape and slidingly attached to the inclined surface of the triangular inclined block 31. The sealing rubber strip 3 is made of rubber material and has softness and elasticity, which can be tightly attached to the inclined surface of the triangular inclined block 31 and the inner wall of the mounting port 4, improving the sealing performance of the cabinet door 2 installation.

[0037] Working principle: in use, when the adsorption layer needs to be replaced, first rotate the threaded rod 22 to make it disengage from the threaded groove 213, since the threaded rod 22 is threadedly connected with the guide block 23, after disengagement, the guide block 23 can be moved downward, the guide block 23 drives the guide rod 21 fixedly connected therewith to move downward synchronously, the guide rod 21 drives the moving rod 212 to move downward, the moving rod 212 drives the moving block 211 to slide downward in the sliding groove 28, during the downward movement of the moving block 211, the moving block 211 no longer limits the circular clamping ball 25, at this time, the box door 2 is pulled out outward, the movement of the box door 2 drives the circular clamping groove 24 to press the circular clamping ball 25, so that the circular clamping ball 25 moves out of the circular clamping groove 24 under the constraint of the positioning block 27 and the positioning groove 26, moves toward the sliding groove 28, at this time, the box door 2 is moved outward, the adsorption layer frame body fixedly arranged on the rear surface is moved out, and the adsorption layer can be replaced.

[0038] After the new adsorption layer is replaced, at this time, the adsorption layer frame body is inserted into the installation opening 4 together with the box door 2, at this time, the circular clamping groove 24 on both sides of the box door 2 corresponds to the position of the circular clamping ball 25, then the guide block 23 is moved upward, driving the guide rod 21, the moving rod 212 and the moving block 211 to move upward, during the upward movement of the moving block 211, the trapezoidal top end slope of the moving block 211 pushes the circular clamping ball 25 to move horizontally to the right until the circular clamping ball 25 is clamped into the circular clamping groove 24, when the guide block 23 is pushed upward to the extent that it cannot be moved, at this time, the threaded rod 22 is aligned with the threaded groove 213, at this time, the threaded rod 22 is rotated to screw into the threaded groove 213, limiting the guide block 23 and the moving block 211, thereby stably fixing the box door 2, and quickly completing the replacement of the adsorption layer.

[0039] During the installation of the box door 2, the triangular sealing rubber strips 3 on the left and right sides of the rear surface of the box door 2 are in contact with the triangular inclined blocks 31 on the inner walls of the left and right sides of the rear surface of the installation opening 4 during the closing process of the box door 2, as the box door 2 is further closed, the inclined surface of the triangular inclined block 31 presses the sealing rubber strip 3, since the sealing rubber strip 3 is made of soft and elastic rubber material, it deforms under the pressing action, tightly adheres to the inclined surface of the triangular inclined block 31 and the inner wall of the installation opening 4, effectively prevents the nuclear medicine waste gas from leaking from the connection between the box door 2 and the body 1, ensures the sealing property of the filter box, and guarantees the safety of the waste gas filtering process.

[0040] Finally, it should be noted that: the above only describes preferred embodiments of the present application and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or equivalently replace some technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A nuclear medicine exhaust filter box comprising a body (1), characterized in that: The front surface of the body (1) is provided with a box door (2), the front of the body (1) is provided with a mounting port (4), the front surface of the body (1) is provided with a dismounting assembly on both sides of the mounting port (4), the dismounting assembly comprises a circular clamping ball (25) and a circular clamping groove (24), the front end of the body (1) is provided with a circular groove (29) on the left side of the mounting port (4), the front end of the body (1) is provided with a sliding groove (28) on the right side of the circular groove (29), the left side of the front and rear surfaces of the circular clamping ball (25) is fixedly connected with a positioning block (27), the front and rear surfaces of the circular groove (29) are provided with a positioning groove (26), the inner wall of the sliding groove (28) is slidably connected with a moving block (211), the front surface of the moving block (211) is fixedly connected with a moving rod (212), the front end of the body (1) is provided with a moving groove (210) in front of and in penetrating communication with the sliding groove (28), the front surface of the moving rod (212) is fixedly connected with a guide rod (21), and the bottom end of the guide rod (21) is fixedly connected with a guide block (23).

2. A nuclear medicine exhaust filter box according to claim 1, wherein: The inner wall of the mounting port (4) is provided with a sealing assembly, and the sealing assembly comprises a triangular inclined block (31) and a sealing rubber strip (3).

3. A nuclear medicine exhaust filter box according to claim 1, wherein: The front surface of the guide block (23) is penetrated and threadedly connected with a threaded rod (22), and the bottom of the front surface of the body (1) is provided with a threaded groove (213) on the left side of the guide rod (21).

4. A nuclear medicine exhaust filter box according to claim 3, wherein: The threaded rod (22) is threadedly connected with the threaded groove (213), the circular clamping groove (24) is provided on the left and right sides of the box door (2) and is uniformly provided with a plurality of groups, and the circular clamping ball (25) is slidably connected to the inner wall of the circular groove (29).

5. A nuclear medicine exhaust filter box according to claim 3, wherein: The positioning block (27) is slidably connected to the inner wall of the positioning groove (26), the moving block (211) is provided in a trapezoidal shape, and the moving rod (212) penetrates and is slidably connected to the inner wall of the moving groove (210).

6. A nuclear medicine exhaust filter box according to claim 3, wherein: The guide rod (21), the moving block (211), the circular clamping ball (25) and the moving groove (210) are all provided in multiple groups, the multiple groups of the guide rod (21), the moving block (211), the circular clamping ball (25) and the moving groove (210) are symmetrically arranged with the center line of the guide block (23) as the axis of symmetry, and the multiple groups of the moving block (211) and the circular clamping ball (25) are correspondingly arranged with the multiple groups of the circular clamping groove (24).

7. A nuclear medicine exhaust filter box according to claim 2, wherein: The triangular inclined block (31) is provided in a triangular shape and provided with two groups, and the two groups of the triangular inclined block (31) are fixedly connected to the inner walls on the left and right sides of the rear surface of the mounting port (4) respectively.

8. A nuclear medicine exhaust filter box according to claim 7, wherein: The sealing rubber strip (3) is provided in two groups, and the two groups of the sealing rubber strip (3) are fixedly connected to the rear surface of the box door (2) on the left and right sides and correspondingly arranged with the two groups of the triangular inclined block (31), and the sealing rubber strip (3) is provided in a triangular shape and slidably attached to the inclined surface of the triangular inclined block (31).

Images