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CN-224220159-U - Pen-shaped ionization chamber probe positioning bracket

CN224220159UCN 224220159 UCN224220159 UCN 224220159UCN-224220159-U

Abstract

The utility model discloses a pen-shaped ionization chamber probe positioning bracket, which relates to the technical field of positioning brackets and comprises a positioning hollow ring, wherein a first measuring ruler is fixed on the outer side of the positioning hollow ring, a second measuring ruler is rotatably connected to the outer side of the positioning hollow ring and positioned at the upper end of the first measuring ruler, a hand screw is symmetrically connected to the inner side of the positioning hollow ring and positioned at the upper end of the second measuring ruler in a threaded manner, guide grooves are symmetrically formed in the inner side of the second measuring ruler and positioned on the outer side of the positioning hollow ring, and limit sliding seats are slidably connected to the inner sides of the two guide grooves. According to the pen-shaped ionization chamber probe positioning bracket provided by the utility model, the second measuring ruler is unfolded through rotation, so that the first measuring ruler and the second measuring ruler are in a mutually vertical state, the scale marks on the first measuring ruler and the second measuring ruler are utilized to conveniently ensure that the positioning hollow ring is placed at the center of the circular opening, and the pen-shaped ionization chamber probe is clamped conveniently through rotating two hand-screwed screws to match with the fastening head.

Inventors

  • WU YI
  • WEN YUQIN
  • LUO YU

Assignees

  • 重庆市九龙坡区疾病预防控制中心

Dates

Publication Date
20260512
Application Date
20250208

Claims (6)

  1. 1. The utility model provides a pen-shaped ionization chamber probe locating support, its characterized in that, including location cavity ring (1), the outside of location cavity ring (1) is fixed with first dipperstick (2), the outside of location cavity ring (1) just is located the upper end rotation of first dipperstick (2) and is connected with second dipperstick (3), the inside of location cavity ring (1) just is located the upper end symmetry threaded connection of second dipperstick (3) has hand screw rod (4), two the one end of hand screw rod (4) just is located the location cavity ring (1) inboard all is fixed with fastening head (5), two the other end of hand screw rod (4) just is located the location cavity ring (1) outside all is fixed with a section of thick bamboo (6), the outside of location cavity ring (1) just is located the upper end of second dipperstick (3) and still symmetry is fixed with reference column (7), the inside of second dipperstick (3) just is located the outside symmetry of location cavity ring (1) and has offered guide slot (8), two guide slot (8) inboard all are connected with slide (10), a limit slide (10) and a limit slide (10) all.
  2. 2. The pen-shaped ionization chamber probe positioning bracket according to claim 1, wherein guide posts (9) are arranged on the inner sides of the two guide grooves (8), the guide posts (9) are fixed with the second measuring scale (3), and the limit sliding seat (10) is positioned on the outer sides of the guide posts (9) and is in sliding connection with the guide posts (9).
  3. 3. The pen-shaped ionization chamber probe positioning bracket according to claim 2, wherein a first spring (11) is sleeved on the outer side of each guide post (9), one end of each first spring (11) is respectively fixed with two limit sliding seats (10), and the other ends of the two first springs (11) are respectively fixed with a second measuring ruler (3).
  4. 4. The pen-shaped ionization chamber probe positioning bracket according to claim 1, wherein two bearing seats (14) are fixed at the bottom end of the first measuring ruler (2) and positioned at the outer side of the positioning hollow ring (1), a support shaft (15) is fixed at the inner side of each bearing seat (14), a supporting leg (16) is rotatably connected at the outer side of the support shaft (15), and a supporting leg (22) is fixed at one end of the supporting leg (16) far away from the support shaft (15).
  5. 5. The pen-shaped ionization chamber probe positioning bracket according to claim 4, wherein the outer side of the positioning hollow ring (1) and the lower end of the first measuring scale (2) are symmetrically fixed with carrying seats (12), the interiors of the two carrying seats (12) are respectively connected with a hand-screwing bolt (13) in a threaded manner, and the supporting legs (22) are in sliding connection with the hand-screwing bolts (13).
  6. 6. The pen-shaped ionization chamber probe positioning bracket according to claim 4, wherein each supporting leg (16) is fixed with a supporting rod (17) on two sides close to one end of a supporting shaft (15), one side, far away from the supporting leg (16), of each supporting rod (17) is fixed with a first flat gear (18), gear grooves (19) are formed in the inner parts of two sides of each bearing seat (14), a second flat gear (20) is connected to the inner sides of the gear grooves (19) in a sliding mode, the second flat gears (20) are connected with the first flat gears (18) in a meshed mode, second springs (21) are further arranged on the inner sides of each gear groove (19), one ends of the second springs (21) are fixed with the second flat gears (20), and the other ends of the second springs (21) are fixed with the bearing seats (14).

Description

Pen-shaped ionization chamber probe positioning bracket Technical Field The utility model relates to the technical field of positioning brackets, in particular to a pen-shaped ionization chamber probe positioning bracket. Background Breast CBCT is a medical imaging technique for breast cancer screening, scanning the breast with low dose X-rays, and in the dose detection of breast CBCT, the ionization chamber is a commonly used dose measuring instrument. The average breast dose is detected by placing a pen-shaped ionization chamber probe at the rotation center of an exposure frame, and adjusting the position of the probe by positioning an image so that the effective detection area of the probe is just positioned in the X-ray range. The pen-shaped ionization chamber probe is placed in a circular opening on an inspection bed, and no other objects except a dosimeter probe and a safety cover can be placed between an X-ray tube and an image receiver, so that the probe is difficult to be fixedly placed and has risks of falling and the like, and the position of the probe is adjusted by scanning a positioning image for a plurality of times so as to ensure that the probe is placed on the center of the circular opening on the inspection bed, so that monitoring time is consumed and unnecessary exposure of equipment is increased. Disclosure of utility model Based on this, it is necessary to provide a pen-shaped ionization chamber probe locating support to the above-mentioned technical problem, conveniently support and fix a position hollow ring after expanding two supporting legs, first dipperstick and second dipperstick are placed on the circular opening on the inspection bed, and rotatory expansion second dipperstick makes and is mutually perpendicular state between first dipperstick, the second dipperstick, and then utilize the scale mark on first dipperstick, the second dipperstick to conveniently ensure to fix a position hollow ring and place in circular opening's center department, and then run through the hollow ring of location with pen-shaped ionization chamber probe and extend into circular opening in the back, conveniently carry out the clamp to pen-shaped ionization chamber probe and solid through rotatory two hand screw bolts cooperation fastening head and reduce the risk of falling. In order to solve the technical problems, the utility model adopts the following technical scheme: a pen-shaped ionization chamber probe positioning bracket is applied to positioning and placing of a pen-shaped ionization chamber probe; Including the location cavity ring, the outside of location cavity ring is fixed with first dipperstick, the outside of location cavity ring just is located the upper end rotation of first dipperstick and is connected with the second dipperstick, the inside of location cavity ring just is located the upper end symmetry threaded connection of second dipperstick has the hand screw rod, two the one end of hand screw rod just is located the location cavity ring inboard all is fixed with the fastening head, two the other end of hand screw rod just is located the location cavity ring outside and all is fixed with a section of thick bamboo, the outside of location cavity ring just is located the upper end of second dipperstick and still symmetry is fixed with the reference column, the inside of second dipperstick just is located the location cavity ring outside symmetry has seted up the guide slot, two the equal sliding connection in guide slot inboard has spacing slide, a section of thick bamboo, reference column all with spacing slide sliding connection. As a preferred implementation mode of the pen-shaped ionization chamber probe positioning bracket provided by the utility model, the inner sides of the two guide grooves are respectively provided with a guide pillar, the guide pillars are fixed with the second measuring ruler, and the limiting sliding seat is positioned on the outer sides of the guide pillars and is in sliding connection with the guide pillars. As a preferred implementation mode of the pen-shaped ionization chamber probe positioning bracket provided by the utility model, the outer side of each guide post is sleeved with a first spring, one end of each first spring is respectively fixed with two limiting sliding seats, and the other ends of each first spring are respectively fixed with a second measuring ruler. As a preferred implementation mode of the pen-shaped ionization chamber probe positioning bracket provided by the utility model, two bearing seats are fixed at the bottom end of the first measuring ruler and positioned at the outer side of the positioning hollow ring, a supporting shaft is fixed at the inner side of each bearing seat, supporting legs are connected at the outer side of each supporting shaft in a rotating way, and supporting legs are fixed at one end of each supporting leg far away from each supporting shaft. As a preferred implementation mode of the pen-shaped i