CN219712221U - Sliding limiting seat for push rod of lifter - Google Patents

Abstract

The utility model relates to the technical field of lifter push rods, in particular to a sliding limit seat of a lifter push rod, which comprises a sliding limit cylinder, wherein a push rod is arranged in the sliding limit cylinder, a screw block is arranged on the inner wall of one end of the push rod, a screw rod is arranged in the push rod, limit sliding grooves are formed in the sliding limit cylinder, a reading mechanism is arranged in the sliding limit cylinder and consists of scale marks and a moving assembly, an efficient buffer mechanism is arranged on the surface of the limiting sliding block and consists of a friction pad and a buffer component, an auxiliary supporting mechanism is arranged on the surface of the screw rod and consists of a supporting assembly and a rotating column. The utility model is convenient for intuitively knowing the accurate length of the motion of the pushing rod when the sliding limiting seat is used, improves the stability of the screw rod when the sliding limiting seat is used, and improves the buffering effect of the sliding limiting seat on the pushing rod.

Description

Sliding limiting seat for push rod of lifter

Technical Field

The utility model relates to the technical field of lifter push rods, in particular to a sliding limiting seat of a lifter push rod.

Background

At present, the lifter push rod is very commonly applied in various fields, and is an electric driving device for converting the rotation motion of a motor into the linear reciprocating motion of the push rod, and the lifter push rod generally limits the push rod through a sliding limiting seat when in operation, so that the lifter push rod does linear motion.

When the push rod in the lifter push rod moves along the sliding limit seat, the length of the push rod movement is generally detected by naked eyes or by a sensor, the accuracy of the naked eyes is low, the detection by the sensor is complicated, and the accurate length of the push rod movement when the sliding limit seat is used is not easy to intuitively know; the transmission device of the lifter push rod drives the push rod to move through the threaded fit of the screw rod and the screw hole, one end of the screw rod stretches into the push rod, and the other end of the screw rod is in running fit with the sliding limiting seat, so that the stability is poor; because the lifter push rod is driven to move through the motor, the moving speed is high, the overload protection is generally carried out on the push rod through the buffer spring, but the effect is poor only by means of spring buffer.

Disclosure of Invention

The utility model aims to provide a sliding limit seat of a push rod of an elevator, which solves the problems that the accurate length of the push rod movement, poor stability and poor buffering effect are difficult to visually know when the sliding limit seat is used in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an elevator push rod slip spacing seat, includes a slip spacing section of thick bamboo, the inside of a slip spacing section of thick bamboo is provided with the catch bar, and the screw piece is installed to the inner wall of catch bar one end to the screw piece comprises connecting seat and the nut of embedding in the connecting seat inside, the inside of catch bar is provided with the screw rod, and the screw rod is mutually screw-threaded with the nut of screw piece inside, spacing spout has all been seted up to the inside of a slip spacing section of thick bamboo, and the surface of spacing spout is provided with spacing slider to spacing slider and spacing spout mutually sliding fit, simultaneously, spacing slider and the one end looks fixed connection of catch bar, the inside of a slip spacing section of thick bamboo is provided with reading mechanism, and reading mechanism comprises scale mark and movable assembly, the surface of spacing slider is provided with high-efficient buffer mechanism, and high-efficient buffer mechanism comprises friction pad and buffer unit, the surface of screw rod is provided with auxiliary support mechanism, and auxiliary support mechanism comprises supporting assembly and revolving post.

Preferably, the inside of moving the subassembly is provided with activity logical groove, connecting block and reading mark, the activity is led to the groove in the surface of sliding spacing section of thick bamboo, and the activity is led to the groove and is linked together with one of them spacing spout, the inside of activity logical groove is provided with the connecting block, and the connecting block and the mutual sliding fit of activity logical groove to the one end of connecting block is fixed connection mutually with the surface of spacing slider.

Preferably, the other end of the connecting block is fixed with a reading mark, one end of the reading mark extends to the outer side of the sliding limiting cylinder, a scale mark is fixed on the surface of the sliding limiting cylinder, and the scale mark and the reading mark are matched with each other.

Preferably, the inside of buffer unit is including buffer spring, elasticity post and buffer board, the inside both sides of spacing spout have all been embedded into friction pad, and friction pad and spacing slider contact each other, the inboard of spacing spout is provided with the buffer board, and the fixed surface of buffer board has the elasticity post to the one end and the inner wall looks fixed connection of spacing spout of elasticity post, the surface cover of elasticity post is equipped with buffer spring, and buffer spring's both ends are fixed connection with the surface of buffer board and spacing spout respectively.

Preferably, the inside of supporting component is provided with through-hole, spliced pole and backup pad, the through-hole has all been seted up on the surface of spiral shell piece, and the inside of through-hole is provided with the spliced pole to the one end of spliced pole is fixed connection mutually with the inner wall of a slip spacing section of thick bamboo.

Preferably, the other end of the connecting column is fixed with a supporting plate, the surface of the supporting plate is rotationally connected with a rotating column, one end of the rotating column is fixedly connected with one end of the screw rod, and meanwhile, the central axis of the rotating column coincides with the central axis of the screw rod.

Compared with the prior art, the utility model has the beneficial effects that: the sliding limit seat of the push rod of the elevator is convenient for intuitively knowing the accurate length of the movement of the push rod when the sliding limit seat is used, so that the stability of the screw rod when the sliding limit seat is used is improved, and the buffering effect of the sliding limit seat on the push rod is improved;

1. by the aid of the reading mechanism, the limiting slide block is driven to synchronously slide along the movable through groove when moving, the reading mark is driven to move, corresponding scale marks can be directly read under the action of the reading mark, the movement length of the pushing rod is clearly known, the function of reading the movement length of the pushing rod by the sliding limiting seat is realized, and therefore the accurate movement length of the pushing rod when the sliding limiting seat is used is conveniently and intuitively known;

2. by the aid of the auxiliary supporting mechanism, the other end of the screw rod can be supported under the action of the connecting column and the supporting plate, the movement of the screw rod cannot be influenced under the action of the through hole, the rotation of the screw rod cannot be influenced under the action of the rotating column, the auxiliary supporting function of the sliding limiting seat on the screw rod is achieved, and therefore the stability of the screw rod is improved when the sliding limiting seat is used;

3. through being provided with high-efficient buffer gear, when spacing slider moves to being close to the buffer board along with the catch bar, spacing slider and friction pad contact each other, but the frictional force between spacing slider and the spacing spout of increase under the effect of friction pad slows down spacing slider's velocity of movement, when spacing slider and buffer board contact, can cushion the force of unloading to spacing slider under the thrust effect of buffer spring and elasticity post, further slow down spacing slider's velocity of movement, avoid spacing slider to move too fast and take place to damage, realized the high-efficient buffer function of slip spacing seat to spacing slider, thereby improved the buffering effect of slip spacing seat to the catch bar.

Drawings

FIG. 1 is a schematic view of a three-dimensional appearance structure of the present utility model;

FIG. 2 is a schematic view of a front cross-sectional structure of the present utility model;

FIG. 3 is an enlarged schematic side view of the present utility model;

FIG. 4 is an enlarged schematic view of the reading mechanism of the present utility model;

fig. 5 is an enlarged schematic view of the efficient buffer mechanism of the present utility model.

In the figure: 1. a sliding limit cylinder; 101. a push rod; 102. a screw; 103. a screw block; 104. a limit sliding block; 105. limiting sliding grooves; 2. a reading mechanism; 201. scale marks; 202. a moving assembly; 2021. a movable through groove; 2022. a connecting block; 2023. reading a mark; 3. an efficient buffer mechanism; 301. a friction pad; 302. a buffer member; 3021. a buffer spring; 3022. an elastic column; 3023. a buffer plate; 4. an auxiliary supporting mechanism; 401. a support assembly; 4011. a through hole; 4012. a connecting column; 4013. a support plate; 402. a rotating column.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments, and furthermore, the terms "first", "second", "third", "up, down, left, right", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Meanwhile, in the description of the present utility model, unless explicitly stated and defined otherwise, the terms "connected", "connected" and "connected" should be interpreted broadly, and for example, may be fixedly connected, detachably connected, or integrally connected; the mechanical connection and the electrical connection can be adopted; all other embodiments, which may be directly or indirectly through intermediaries, which may be obtained by a person of ordinary skill in the art without inventive effort based on the embodiments of the present utility model are within the scope of the present utility model.

The utility model provides a structure of a sliding limit seat of an elevator push rod, which is shown in fig. 1 and 2, and comprises a sliding limit cylinder 1, wherein a push rod 101 is arranged in the sliding limit cylinder 1, a screw block 103 is arranged on the inner wall of one end of the push rod 101, the screw block 103 consists of a connecting seat and a nut embedded in the connecting seat, a screw 102 is arranged in the push rod 101, the screw 102 is in threaded fit with the nut in the screw block 103, limit sliding grooves 105 are formed in the sliding limit cylinder 1, limit sliding blocks 104 are arranged on the surface of the limit sliding grooves 105, the limit sliding blocks 104 are in sliding fit with the limit sliding grooves 105, and meanwhile, the limit sliding blocks 104 are fixedly connected with one end of the push rod 101.

When the push rod is used, the screw rod 102 is driven to rotate under the action of the motor and the linkage device in the push rod of the elevator, the push rod 101 is driven to move under the threaded fit of the screw rod 102 and the screw block 103, and meanwhile, the push rod 101 is limited under the sliding fit of the limiting sliding block 104 and the limiting sliding groove 105, so that the push rod 101 moves linearly along the limiting sliding groove 105.

Further, as shown in fig. 4, a reading mechanism 2 is arranged in the sliding limiting cylinder 1, the reading mechanism 2 is composed of a scale mark 201 and a moving assembly 202, a movable through groove 2021, a connecting block 2022 and a reading mark 2023 are arranged in the moving assembly 202, a movable through groove 2021 is formed in the surface of the sliding limiting cylinder 1, the movable through groove 2021 is communicated with one of the limiting sliding grooves 105, a connecting block 2022 is arranged in the movable through groove 2021, the connecting block 2022 is in sliding fit with the movable through groove 2021, one end of the connecting block 2022 is fixedly connected with the surface of the limiting sliding block 104, the reading mark 2023 is fixed at the other end of the connecting block 2022, one end of the reading mark 2023 extends to the outer side of the sliding limiting cylinder 1, the scale mark 201 is fixed on the surface of the sliding limiting cylinder 1, and the scale mark 201 is matched with the reading mark 2023.

When in use, the limit slider 104 drives the connecting block 2022 to synchronously slide along the movable through groove 2021 and drives the reading mark 2023 to move, the corresponding scale mark 201 can be directly read under the action of the reading mark 2023, and the movement length of the pushing rod 101 is clearly known, so that the function of reading the movement length of the pushing rod 101 by the sliding limit seat is realized.

Further, as shown in fig. 5, the surface of the limit sliding block 104 is provided with a high-efficiency buffer mechanism 3, and the high-efficiency buffer mechanism 3 is composed of a friction pad 301 and a buffer component 302, the buffer component 302 includes a buffer spring 3021, an elastic column 3022 and a buffer plate 3023, both sides of the inside of the limit sliding groove 105 are embedded with the friction pad 301, the friction pad 301 is in contact with the limit sliding block 104, the buffer plate 3023 is arranged at the inner side of the limit sliding groove 105, an elastic column 3022 is fixed on the surface of the buffer plate 3023, one end of the elastic column 3022 is fixedly connected with the inner wall of the limit sliding groove 105, the surface of the elastic column 3022 is sleeved with the buffer spring 3021, and two ends of the buffer spring 3021 are respectively fixedly connected with the surfaces of the buffer plate 3023 and the limit sliding groove 105.

When in use, when the limit slider 104 moves along with the pushing rod 101 to be close to the buffer plate 3023, the limit slider 104 and the friction pad 301 are in contact with each other, the friction force between the limit slider 104 and the limit chute 105 can be increased under the action of the friction pad 301, the movement speed of the limit slider 104 is slowed down, when the limit slider 104 is in contact with the buffer plate 3023, the force can be buffered and unloaded to the limit slider 104 under the action of the thrust of the buffer spring 3021 and the elastic column 3022, the movement speed of the limit slider 104 is further slowed down, the damage caused by the too fast movement of the limit slider 104 is avoided, and the efficient buffering function of the limit slider 104 by the sliding limit seat is realized.

Further, as shown in fig. 2 and 3, an auxiliary supporting mechanism 4 is provided on the surface of the screw 102, and the auxiliary supporting mechanism 4 is composed of a supporting component 401 and a rotating column 402, a through hole 4011, a connecting column 4012 and a supporting plate 4013 are provided inside the supporting component 401, through holes 4011 are all provided on the surface of the screw block 103, the connecting column 4012 is provided inside the through holes 4011, one end of the connecting column 4012 is fixedly connected with the inner wall of the sliding limiting cylinder 1, the other end of the connecting column 4012 is fixedly connected with the supporting plate 4013, the surface of the supporting plate 4013 is rotatably connected with the rotating column 402, one end of the rotating column 402 is fixedly connected with one end of the screw 102, and meanwhile, the central axis of the rotating column 402 coincides with the central axis of the screw 102.

When the screw rod 102 is used, the connecting column 4012 and the supporting plate 4013 can support the other end of the screw rod 102, the movement of the screw block 103 is not influenced under the action of the through hole 4011, and the rotation of the screw rod 102 is not influenced under the action of the rotating column 402, so that the auxiliary supporting function of the sliding limiting seat on the screw rod 102 is realized.

Working principle: when the linear motion device is used, firstly, the screw 102 is driven to rotate under the action of the motor and the linkage device in the lifter push rod, the push rod 101 is driven to move under the threaded fit of the screw 102 and the screw block 103, and meanwhile, the push rod 101 is limited under the sliding fit of the limiting sliding block 104 and the limiting sliding groove 105, so that the push rod 101 moves linearly along the limiting sliding groove 105.

Meanwhile, when the limit slider 104 moves, the connecting block 2022 is driven to synchronously slide along the movable through groove 2021, the reading mark 2023 is driven to move, the corresponding scale mark 201 can be directly read under the action of the reading mark 2023, and the movement length of the pushing rod 101 is clearly known, so that the function of reading the movement length of the pushing rod 101 by the sliding limit seat is realized, and the accurate movement length of the pushing rod 101 when the sliding limit seat is used is conveniently and intuitively known.

At this time, the other end of the screw 102 can be supported under the action of the connecting column 4012 and the supporting plate 4013, the movement of the screw block 103 is not influenced under the action of the through hole 4011, and the rotation of the screw 102 is not influenced under the action of the rotating column 402, so that the auxiliary supporting function of the sliding limiting seat on the screw 102 is realized, and the stability of the screw 102 when the sliding limiting seat is used is improved.

When the limit slider 104 moves along with the pushing rod 101 to be close to the buffer plate 3023, the limit slider 104 and the friction pad 301 are in contact with each other, the friction force between the limit slider 104 and the limit sliding groove 105 can be increased under the action of the friction pad 301, the movement speed of the limit slider 104 is slowed down, when the limit slider 104 is in contact with the buffer plate 3023, the force can be buffered and unloaded to the limit slider 104 under the thrust action of the buffer spring 3021 and the elastic column 3022, the movement speed of the limit slider 104 is further slowed down, damage to the limit slider 104 caused by too fast movement of the limit slider 104 is avoided, so that the efficient buffering function of the limit slider 104 by the limit sliding seat is realized, the buffering effect of the limit sliding seat on the pushing rod 101 is improved, and finally the limit sliding seat is used.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (6)

1. The utility model provides an elevator push rod slides spacing seat, includes a sliding spacing section of thick bamboo (1), its characterized in that: the inside of a slip spacing section of thick bamboo (1) is provided with catch bar (101), and the inner wall of catch bar (101) one end installs spiral shell piece (103) to spiral shell piece (103) comprises connecting seat and the nut of embedding in the connecting seat inside, the inside of catch bar (101) is provided with screw rod (102), and the inside nut mutual screw thread fit of screw rod (102) and spiral shell piece (103), spacing spout (105) have all been seted up to the inside of a slip spacing section of thick bamboo (1), and the surface of spacing spout (105) is provided with spacing slider (104), and spacing slider (104) and spacing spout (105) sliding fit each other, simultaneously, spacing slider (104) and the one end looks fixed connection of catch bar (101), the inside of slip spacing section of thick bamboo (1) is provided with reading mechanism (2), and reading mechanism (2) comprise scale mark (201) and moving assembly (202), the surface of spacing slider (104) is provided with high-efficient buffer gear (3), and high-efficient buffer gear (3) comprises friction pad (301) and buffer member (302), the surface of spacing slider (104) is provided with auxiliary support mechanism (4) and supporting component (401) and supporting component (4).

2. The lifter pushrod sliding limit seat of claim 1, wherein: the inside of remove subassembly (202) is provided with activity logical groove (2021), connecting block (2022) and reading mark (2023), activity logical groove (2021) has been seted up on the surface of slip spacing section of thick bamboo (1), and activity logical groove (2021) are linked together with one of them spacing spout (105), the inside of activity logical groove (2021) is provided with connecting block (2022), and connecting block (2022) and the mutual sliding fit of activity logical groove (2021) to the one end of connecting block (2022) is fixedly connected with the surface of spacing slider (104).

3. The lifter pushrod sliding limit seat of claim 2, wherein: the other end of connecting block (2022) is fixed with reading mark (2023), and the one end of reading mark (2023) extends to the outside of slip spacing section of thick bamboo (1), the surface mounting of slip spacing section of thick bamboo (1) has scale mark (201), and scale mark (201) and reading mark (2023) mutually support.

4. The lifter pushrod sliding limit seat of claim 1, wherein: the inside of buffer unit (302) is including buffer spring (3021), elasticity post (3022) and buffer board (3023), friction pad (301) has all been embedded to the inside both sides of spacing spout (105), and friction pad (301) and spacing slider (104) contact each other, the inboard of spacing spout (105) is provided with buffer board (3023), and the fixed surface of buffer board (3023) has elasticity post (3022) to the one end of elasticity post (3022) is fixedly connected with the inner wall of spacing spout (105), the surface cover of elasticity post (3022) is equipped with buffer spring (3021), and the both ends of buffer spring (3021) are fixedly connected with the surface of buffer board (3023) and spacing spout (105) respectively.

5. The lifter pushrod sliding limit seat of claim 1, wherein: the inside of supporting component (401) is provided with through-hole (4011), spliced pole (4012) and backup pad (4013), through-hole (4011) has all been seted up on the surface of spiral shell piece (103), and the inside of through-hole (4011) is provided with spliced pole (4012) to the one end of spliced pole (4012) is fixed connection with the inner wall of a slip spacing section of thick bamboo (1).

6. The elevator push rod sliding limit seat of claim 5, wherein: the other end of spliced pole (4012) is fixed with backup pad (4013), and the surface rotation of backup pad (4013) is connected with swivel post (402) to the one end of swivel post (402) is fixed connection mutually with the one end of screw rod (102), simultaneously, the axis of swivel post (402) and the axis coincidence of screw rod (102).