Plastic bag tightening and sealing mechanism and potty chair

Abstract

The utility model provides a plastic bag tightening and sealing mechanism and a potty chair, the plastic bag tightening and sealing mechanism comprises a mounting shell, a guide rod assembly, a hot melting sealing part, a sliding pressing part, a bag opening tightening assembly and a driving mechanism, the hot melting sealing part is fixedly connected to one end of the guide rod assembly; the sliding pressing part is connected to the guide rod assembly in a sliding mode, the bag opening tightening assembly comprises first bag opening tightening plates and second bag opening tightening plates, the first bag opening tightening plates are fixed to the sliding pressing part, bag opening tightening slopes are cut on the first bag opening tightening plates, and the second bag opening tightening plates are installed on the guide rod assembly in a sliding mode; the multiple second bag opening tightening plates are provided with bag opening gathering slopes corresponding to the multiple bag opening tightening slopes, and the bag opening gathering slopes and the bag opening tightening slopes or extension lines are arranged at acute angles; the utility model discloses a plastic bag tightening and sealing mechanism and a potty chair, belongs to the technical field of potty chairs, and can tighten and seal a bag opening and automatically package excrement.

Description

Technical Field

[0001] The utility model relates to a plastic bag tightening and sealing mechanism and a toilet chair, belonging to the technical field of toilet chairs. Background Art

[0002] Commode chairs are mainly provided for people with limited mobility or insufficient leg strength (such as patients, the elderly, children, pregnant women, etc.), thereby replacing the function of toilets, effectively solving the problem of difficulty in going to the toilet due to limited mobility, and are a good helper for the care of the elderly and patients; but when the commode chair is used in a squat toilet, due to the large distance between the chair surface and the squat toilet, the user can easily splash the urine and feces on the ground, which is extremely unhygienic.

[0003] Existing patent CN1012842121 B discloses a toilet chair system that can supply water, heat water, deodorize, flush private parts, empty the toilet bowl, etc. However, it still has great limitations. It must be connected to a water source for flushing. In fact, it is equivalent to a portable smart toilet. When traveling or interacting outdoors, it cannot be used outdoors or in waterless conditions, and the use environment is limited. If plastic bags are used to pack excrement, they need to be replaced frequently, which is very cumbersome.

[0004] The existing patent CN113635610B discloses a plastic bag sealing device, which can directly complete the plastic bag sealing action through the cooperation between a power component, a transmission component, a connecting rod component and a sealing component, but can only hot-melt seal the plastic bag opening flush. When the bag opening is not aligned, the sealing effect is affected, and the bag opening cannot be tightened for sealing, resulting in a poor sealing effect.

[0005] Therefore, there is an urgent need for a sealing mechanism that can tighten the bag opening and then seal it to improve the sealing effect of the plastic bag opening and a toilet chair that can automatically pack excrement. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide a plastic bag tightening and sealing mechanism and a toilet chair, which can tighten and seal the bag opening and automatically pack excrement.

[0007] The utility model solves the above technical problems with the following technical solutions: a plastic bag tightening and sealing mechanism, comprising:

[0008] An installation shell, wherein the installation shell has a bag entry opening at the top and an opening at the bottom;

[0009] A guide rod assembly, wherein the guide rod assembly is fixedly connected to the inner wall of the mounting housing;

[0010] a hot melt sealing portion, the hot melt sealing portion being fixedly connected to one end of the guide rod assembly;

[0011] A sliding pressing part, wherein the sliding pressing part is slidably connected to the guide rod assembly, a pressing end of the sliding pressing part is arranged corresponding to the heating end of the hot melt sealing part, and a plastic bag penetration gap is formed between the hot melt sealing part and the sliding pressing part;

[0012] A bag opening tightening assembly, wherein the bag opening tightening assembly comprises a plurality of first bag opening tightening plates and a plurality of second bag opening tightening plates, wherein the plurality of first bag opening tightening plates are fixed on the sliding pressing portion, the plurality of first bag opening tightening plates are all cut with bag opening tightening inclined surfaces, the plurality of second bag opening tightening plates are slidably mounted on one end of the guide rod assembly close to the hot-melt sealing portion, and the plurality of second bag opening tightening plates are provided with bag opening gathering inclined surfaces arranged at an acute angle thereto or their extension lines corresponding to the plurality of bag opening tightening inclined surfaces;

[0013] A driving mechanism is installed on the inner wall of the installation shell and drives the sliding pressing part to approach or move away from the hot-melt sealing part through a transmission component.

[0014] The beneficial effects of the utility model are as follows: the plastic bag is transported from the bag entry to the installation shell, and is located in the gap through which the plastic bag passes. The sliding extrusion part is slidably connected to the guide rod assembly, and the driving mechanism drives the sliding extrusion part to slide on the guide rod assembly. The pressing end of the sliding extrusion part abuts against the heating end of the hot-melt sealing part, and the sliding extrusion part squeezes the plastic bag to the hot-melt sealing part to perform hot-melt sealing on the bag opening of the plastic bag. At the same time, a plurality of first bag opening tightening plates cooperate with a plurality of second bag opening tightening plates to squeeze the plastic bag toward the middle, tighten the bag opening, and improve the sealing effect of the bag opening of the plastic bag.

[0015] On the basis of the above technical solution, the present invention can also be improved as follows.

[0016] Furthermore, the guide rod assembly includes two guide rods and two linear bearings, the two guide rods are located on both sides of the bag entrance and are symmetrically fixed on the inner wall of the mounting shell, the two linear bearings are correspondingly slidably connected to the two guide rods, the sliding clamping part is fixed on the two linear bearings, the hot-melt sealing part is fixed on one end of the two guide rods, and the second bag entrance tightening plate is slidably connected to the two guide rods.

[0017] The beneficial effect of adopting the above further solution is that the two ends of the sliding pressing part are fixed on two linear bearings respectively, and the driving mechanism drives the sliding extrusion part through the transmission component to squeeze the plastic bag located in the gap through which the plastic bag penetrates onto the hot-melt sealing part.

[0018] Furthermore, the bag mouth tightening assembly also includes a sliding plate and an elastic buffer, the two ends of the sliding plate are respectively slidably connected to the two guide rods, a plurality of the second bag mouth tightening plates are fixed on the sliding plate, and the elastic buffer is located between the sliding plate and the hot melt sealing part and the two ends are respectively connected to the sliding plate and the hot melt sealing part.

[0019] The beneficial effects of adopting the above-mentioned further scheme are as follows: when the sliding clamping part approaches the hot-melt sealing part, the multiple first bag opening tightening plates approach the multiple second bag opening tightening plates to tighten the plastic bag located in the gap through which the plastic bag passes; when the sliding clamping part abuts against the hot-melt sealing part, the multiple first bag opening tightening plates are pressed against the multiple second bag opening tightening plates; the elastic buffer can absorb the impact caused by the sliding clamping part, thereby improving the safety and durability of the equipment.

[0020] Furthermore, the elastic buffer member includes two buffer springs, and the two buffer springs are correspondingly sleeved on the two guide rods. One end of the two buffer springs is fixedly connected to the hot-melt sealing part, and the other end is fixedly connected to the sliding plate.

[0021] The beneficial effect of adopting the above further solution is that the buffer spring is sleeved on the guide rod, which makes installation more convenient and the structure more compact.

[0022] Furthermore, the sliding pressing part is a pressing block, and the pressing block is fixedly connected to the two linear bearings.

[0023] Furthermore, the hot melt sealing part includes a mounting plate and a hot melt plate, the mounting plate is fixed to one end of the two guide rods, the hot melt plate is fixed to the mounting plate and its heating end is arranged corresponding to the clamping end of the clamping block, the plastic bag passes through the gap formed between the clamping block and the hot melt plate, one end of the two buffer springs is fixedly connected to the mounting plate, and the other end is fixedly connected to the sliding plate.

[0024] Furthermore, the transmission assembly includes: two belt transmission assemblies symmetrically installed on the inner wall of the mounting shell, the two linear bearings are respectively connected to the power output ends of the two belt transmission assemblies; a gear transmission assembly, the gear transmission assembly is rotatably connected to the inner wall of the mounting shell, the power input end of the gear transmission assembly is connected to the power output end of the driving mechanism, and the power output end of the gear transmission assembly is connected to the power input ends of the two belt transmission assemblies.

[0025] Furthermore, it also includes two transmission sensors and a sensing sheet fixed on the linear bearing. The two transmission sensors are fixed on the inner wall of the mounting shell and correspond to the top of the first and last ends of the linear bearing movement stroke. The two transmission sensors are electrically connected to the driving mechanism through a controller.

[0026] The beneficial effects of adopting the above further scheme are as follows: the two transmission sensors are located at the beginning and end of the linear bearing stroke, and can control the driving mechanism to drive the clamping block to clamp the hot melt plate or move away from the hot melt plate through the action of the sensing sheet and the transmission sensor, thereby improving the automatic hot melt sealing of the plastic bag.

[0027] The utility model solves the above technical problems with the following technical solutions: a toilet chair, comprising:

[0028] The plastic bag tightens the sealing mechanism,

[0029] A chair frame, a seat plate is mounted on the chair frame, and a toilet opening is provided on the seat plate; the mounting shell is fixed on the legs of the chair frame and is located below the seat plate, and the bag inlet corresponds to the toilet opening;

[0030] An annular shell for storing plastic bags, wherein the inner hole of the annular shell is fixed to the top plate of the mounting shell corresponding to the bag inlet, and the inner hole wall of the annular shell is provided with an annular gap for outputting the plastic bags, and the inner bottom of the plastic bag is used to hold the excrement dropped from the toilet seat;

[0031] A support plate for supporting a plastic bag, wherein the support plate is mounted on the mounting shell corresponding to the toilet opening.

[0032] The beneficial effects of the utility model are as follows: the bag mouth of the plastic bag is rolled outward to form a shape similar to a donut, the rolled plastic bag is installed in an annular shell, the bottom of the plastic bag is pulled out, and the side wall of the plastic bag is output from the annular gap, the bag body of the plastic bag is located at the gap where the plastic bag passes through, and the bottom of the plastic bag abuts against a support plate, the support plate provides support for the plastic bag to prevent the plastic bag from being damaged, and the bottom of the plastic bag covers the inner hole of the annular shell; excrement passes through the toilet seat opening and the inner hole of the annular shell, is collected in the plastic bag, and is sealed by a tightening and sealing mechanism of the plastic bag.

[0033] Furthermore, it also includes a clamping and conveying mechanism for outputting the plastic bag from the annular shell and a pulling and breaking mechanism for pulling the plastic bag off the lower edge of the hot-melt sealing strip. The clamping and conveying mechanism is installed on the inner wall of the installation shell and is located above the guide rod assembly, and the pulling and breaking mechanism is installed on the guide rod assembly and is located below the plastic bag tightening and sealing mechanism.

[0034] The beneficial effects of adopting the above-mentioned further scheme are as follows: after the plastic bag is installed in the annular shell, the two sides of the plastic bag are clamped onto the clamping and conveying mechanism, and the clamping and conveying mechanism conveys the plastic bag downward so that the bottom of the plastic bag abuts against the support plate. After the convenience is completed, the plastic bag tightening and sealing mechanism seals the plastic bag, and the breaking mechanism breaks the lower edge of the hot-melt sealing strip of the plastic bag to pack the excrement. The clamping and conveying mechanism conveys the plastic bag to the support plate again, ready for next use. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 A schematic diagram of the structure of a plastic bag tightening and sealing mechanism installed inside a shell provided by the utility model;

[0036] Figure 2 A schematic diagram of the structure of a transmission component in a plastic bag tightening and sealing mechanism provided by the utility model;

[0037] Figure 3 A schematic diagram of the structure of a housing and a support plate installed in a toilet chair provided by the utility model;

[0038] Figure 4 A schematic diagram of the structure of a chair frame in a toilet chair provided by the utility model;

[0039] Figure 5 A schematic diagram of the structure of a commode chair provided by the utility model, in which a shell, a support plate and an annular shell are installed;

[0040] Figure 6 A schematic diagram of the structure of a clamping and conveying mechanism, a breaking mechanism and a plastic bag tightening and sealing mechanism in a toilet chair provided by the utility model;

[0041] Figure 7 This is a structural schematic diagram of a misalignment compensation clamping wheel set in a toilet chair provided by the utility model;

[0042] Figure 8 A schematic structural diagram of another angle of a misalignment compensation clamping wheel set in a commode chair provided by the utility model;

[0043] Fig. 9 A schematic diagram of the structure of a dislocation compensation clamping wheel set in a toilet chair provided by the utility model without a fixing frame;

[0044] Fig.10 This is a structural schematic diagram of a clamping and conveying mechanism in a commode chair provided by the utility model;

[0045] Fig.11 This is a structural schematic diagram of an extrusion wheel set in a commode chair provided by the utility model;

[0046] Fig.12A schematic diagram of the structure of a buffer, a mounting shaft and an extrusion wheel in a toilet chair provided by the utility model;

[0047] Fig.13 This is a structural schematic diagram of a sliding claw in a toilet chair provided by the utility model;

[0048] Fig.14 A schematic diagram of the structure of a pull-off wheel assembly, a pull-off motor and a power transmission assembly in a toilet chair provided by the utility model;

[0049] Fig.15 This is a structural schematic diagram of another angle of installing a shell and a support plate in a toilet chair provided by the utility model;

[0050] Fig.16 for Fig.15 A magnified view of part A;

[0051] Fig.17 A schematic diagram of clamping a plastic bag on a misalignment compensation clamping wheel set in a commode chair provided by the utility model;

[0052] Fig.18 A schematic diagram of a toilet chair provided by the utility model, in which the mounting shell and the annular shell are removed to clamp a plastic bag on a misalignment compensation clamping wheel set;

[0053] Fig.19 The utility model provides a schematic structural diagram of a bag opening tightening assembly, a sliding plate and a sliding pressing part in a toilet chair.

[0054] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0055] 1-plastic bag tightening and sealing mechanism, 101-installation shell, 1011-bag inlet, 102-guide rod assembly, 1021-guide rod, 1022-linear bearing, 103-hot melt sealing part, 1031-installation plate, 1032-hot melt plate, 104-sliding pressing part, 105-bag tightening assembly, 1051-first bag tightening plate, 1052-second bag tightening plate, 10521-insertion groove, 1053-sliding plate, 1054-elastic buffer, 10541-buffer spring, 106-driving mechanism, 107- Transmission assembly, 1071-belt transmission assembly, 10711-driven shaft, 10712-pulley, 10713-belt, 1072-gear transmission assembly, 10721-driving gear, 10722-driven gear, 10723-worm, 10724-worm wheel, 108-transmission sensor, 109-sensor sheet, 110-limiting plate, 2-chair frame, 201-support leg, 3-seat plate, 301-toilet mouth, 4-annular shell, 5-support plate, 6-clamping conveying mechanism, 601-dislocation compensation clamping wheel group, 6011-fixed Fixed frame, 6012-rotating frame, 6013-first clamping conveying wheel, 6014-second clamping conveying wheel, 6015-torsion spring, 6016-transmission gear set, 60161-first gear, 60162-second gear, 60163-transmission gear, 6017-connecting shaft, 6018-rotating shaft, 6019-avoidance hole, 602-transmission shaft, 603-conveying motor, 7-pulling mechanism, 701-extrusion wheel set, 7011-fixed shell, 70111-long hole, 7012-installation shaft, 7013-extrusion wheel, 7 014-buffer, 70142-spring, 70143-sliding claw, 70144-sliding cylinder, 70145-fixed plate, 70146-claw, 702-break wheel assembly, 7021-support frame, 7022-rotating shaft, 7023-break wheel, 703-break motor, 704-power transmission assembly, 7041-transmission gear, 7042-transmission gear, 7043-connecting gear, 8-plastic bag, 9-plastic bag through gap, 10-angle limit protrusion, 11-arc hole, 12-connecting column, 13-plug plate. DETAILED DESCRIPTION

[0056] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0057] The utility model aims to provide a plastic bag tightening and sealing mechanism and a toilet chair to solve the problems existing in the prior art, improve the sealing effect of the plastic bag mouth and automatically pack excrement.

[0058] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0059] The utility model provides a plastic bag tightening and sealing mechanism, such as Figures 1 to 3 As shown, including:

[0060] The installation housing 101 has a bag entry opening 1011 at the top and an opening at the bottom;

[0061] A guide rod assembly 102, the guide rod assembly 102 is fixedly connected to the inner wall of the mounting housing 101;

[0062] A hot melt sealing portion 103, the hot melt sealing portion 103 is fixedly connected to one end of the guide rod assembly 102;

[0063] A sliding pressing part 104, the sliding pressing part 104 is slidably connected to the guide rod assembly 102, the pressing end of the sliding pressing part 104 is arranged corresponding to the heating end of the hot melt sealing part 103, and a plastic bag penetration gap 9 is formed between the hot melt sealing part 103 and the sliding pressing part 104;

[0064] The bag opening tightening assembly 105 includes a plurality of first bag opening tightening plates 1051 and a plurality of second bag opening tightening plates 1052. The plurality of first bag opening tightening plates 1051 are fixed on the sliding and clamping part 104. The plurality of first bag opening tightening plates 1051 are all cut with bag opening tightening inclined surfaces. The plurality of second bag opening tightening plates 1052 are slidably mounted on one end of the guide rod assembly 102 close to the hot-melt sealing part 103. The plurality of second bag opening tightening plates 1052 are provided with bag opening gathering inclined surfaces arranged at an acute angle thereto or their extension lines corresponding to the plurality of bag opening tightening inclined surfaces.

[0065] The driving mechanism 106 is installed on the inner wall of the mounting shell 101 and drives the sliding pressing part 104 to approach or move away from the hot-melt sealing part 103 through the transmission assembly 107 .

[0066] The utility model provides a plastic bag tightening and sealing mechanism, a plastic bag 8 is transported from a bag entry 1011 to an installation shell 101, and is located in a plastic bag penetration gap 9, a sliding pressing portion 104 is slidably connected to a guide rod assembly 102, a driving mechanism 106 drives the sliding pressing portion 104 to slide along the guide rod assembly 102, a pressing end of the sliding pressing portion 104 abuts against a heating end of a hot-melt sealing portion 103, the sliding pressing portion 104 squeezes the plastic bag 8 onto the hot-melt sealing portion 103 to seal the bag opening of the plastic bag 8, and at the same time, a plurality of first bag opening tightening plates 1051 cooperate with a plurality of second bag opening tightening plates 1052 to squeeze the plastic bag 8 toward the middle, tighten the bag opening, and improve the sealing effect of the bag opening of the plastic bag 8.

[0067] In a specific embodiment of the utility model, the guide rod assembly 102 includes two guide rods 1021 and two linear bearings 1022. The two guide rods 1021 are located on both sides of the bag inlet 1011 and are symmetrically fixed on the inner wall of the mounting shell 101. The two linear bearings 1022 are correspondingly slidably connected to the two guide rods 1021. The sliding clamping part 104 is fixed on the two linear bearings 1022. The hot melt sealing part 103 is fixed on one end of the two guide rods 1021. The second bag opening tightening plate 1052 is slidably connected to the two guide rods 1021.

[0068] Both ends of the sliding pressing part 104 are correspondingly fixed on two linear bearings 1022 . The driving mechanism 106 drives the sliding pressing part 104 through the transmission assembly 107 to squeeze the plastic bag 8 in the plastic bag penetration gap 9 onto the hot-melt sealing part 103 .

[0069] In a specific embodiment of the utility model, the bag opening tightening assembly 105 also includes a sliding plate 1053 and an elastic buffer 1054, the two ends of the sliding plate 1053 are respectively slidably connected to the two guide rods 1021, a plurality of second bag opening tightening plates 1052 are fixed on the sliding plate 1053, and the elastic buffer 1054 is located between the sliding plate 1053 and the hot melt sealing part 103 and the two ends are respectively connected to the sliding plate 1053 and the hot melt sealing part 103.

[0070] When the sliding and clamping part 104 approaches the hot-melt sealing part 103, the multiple first bag opening tightening plates 1051 approach the multiple second bag opening tightening plates 1052 to tighten the plastic bag 8 located in the plastic bag penetration gap 9; when the sliding and clamping part 104 abuts against the hot-melt sealing part 103, the multiple first bag opening tightening plates 1051 and the multiple second bag opening tightening plates 1052 are pressed against each other; the elastic buffer 1054 can absorb the impact caused by the sliding and clamping part 104, thereby improving the safety and durability of the equipment.

[0071] Preferably, two sliding holes are provided on the sliding plate 1053 corresponding to the two guide rods 1021 , and the guide rods 1021 are slidably connected to the sliding holes.

[0072] In a specific embodiment of the utility model, the elastic buffer member 1054 includes two buffer springs 10541, and the two buffer springs 10541 are correspondingly sleeved on the two guide rods 1021. One end of the two buffer springs 10541 is fixedly connected to the hot-melt sealing part 103, and the other end is fixedly connected to the sliding plate 1053.

[0073] The buffer spring 10541 is sleeved on the guide rod 1021, which makes installation more convenient and the structure more compact.

[0074] In a specific embodiment of the present invention, the sliding pressing portion 104 is a pressing block, and the pressing block is fixedly connected to two linear bearings 1022 .

[0075] In a specific embodiment of the utility model, the hot melt sealing part 103 includes a mounting plate 1031 and a hot melt plate 1032. The mounting plate 1031 is fixed to one end of the two guide rods 1021. The hot melt plate 1032 is fixed on the mounting plate 1031 and its heating end is arranged corresponding to the clamping end of the clamping block. The plastic bag passes through the gap 9 formed between the clamping block and the hot melt plate 1032. One end of the two buffer springs 10541 is fixedly connected to the mounting plate 1031.

[0076] In a specific embodiment of the utility model, the gear transmission assembly 1072 includes a driving gear 10721, a driven gear 10722, a worm 10723 and a worm wheel 10724, the belt transmission assembly 1071 includes a driven shaft 10711, four pulleys 10712 and two belts 10713, the driving mechanism 106 is a driving motor, the driving gear 10721 is mounted on the output shaft of the driving motor, the worm 10723 is rotatably connected to the inner wall of the mounting housing 101, and the driven gear 10722 is mounted on the threadless end of the worm 10723 and connected to the driving gear 10721 is connected for transmission, the driven shaft 10711 is rotatably connected to the inner wall of the mounting shell 101 and is perpendicular to the sliding direction of the linear bearing 1022, two pulleys 10712 are fixed at both ends of the driven shaft 10711, and the other two pulleys 10712 are correspondingly rotatably connected to the side walls of the mounting shell 101, the worm wheel 10724 is fixed on the driven shaft 10711 and is connected for transmission with the worm 10723, the two belts 10713 are correspondingly connected for transmission with the two sets of pulleys 10712, and the two linear bearings 1022 are fixedly connected with the two belts 10713 respectively.

[0077] Through the transmission of the worm gear 10723, the output direction can be changed, the volume can be reduced, and the transmission speed can be reduced, which has the effect of a reducer.

[0078] In a specific embodiment of the utility model, it also includes two transmission sensors 108 and a sensing sheet 109 fixed on a linear bearing 1022. The two transmission sensors 108 are fixed on the inner wall of the mounting shell 101 and correspond to the top of the first and last ends of the movement stroke of the linear bearing 1022. The two transmission sensors 108 are electrically connected to the driving mechanism 106 through a controller.

[0079] The two transmission sensors are located at the beginning and end of the stroke of the linear bearing 1022, and can interact with the transmission sensor 108 through the sensing sheet 109 to control the driving mechanism 106 to drive the pressing block to press the hot melt plate 1032 or move away from the hot melt plate 1032, thereby automatically hot-melt-sealing the plastic bag 8.

[0080] In a specific embodiment of the utility model, the two ends of the clamping block are fixed on two belts 10713. When the transmission sensor 108 located at the head end of the guide rod 1021 senses the sensing sheet 109, the controller controls the driving motor to drive the belt 10713 to move, driving the clamping block to move along the guide rod 1021 toward the hot melt plate 1032, compressing the plastic bag 8 and performing hot melt sealing on it. At the same time, the sensing sheet 109 senses the transmission sensor 108 at the end of the guide rod 1021, and the controller controls the driving motor to stop for a set time, and then flips it, so that the clamping block is away from the hot melt plate 1032.

[0081] In a specific embodiment of the utility model, there are four first bag opening tightening plates 1051, which are respectively fixed on the upper and lower sides of both ends of the pressing block, and there are four second bag opening tightening plates 1052, which are fixed on the upper and lower sides of both ends of the sliding plate 1053. As the pressing block approaches the hot melt plate 1032, the four first bag opening tightening plates 1051 and the four second bag opening tightening plates 1052 tighten the plastic bag 8 accordingly, and the pressing block squeezes the plastic bag 8 at the tightening position to improve the sealing effect.

[0082] In a specific embodiment of the utility model, after the first bag opening tightening plate 1051 and the second bag opening tightening plate 1052 are close to each other and abutted against each other, since there is a buffer spring 10541 between the sliding plate 1053 and the mounting plate 1031, and at the same time, the driving motor also stops outputting power, the first bag opening tightening plate 1051 and the second bag opening tightening plate 1052 can be prevented from colliding and being damaged.

[0083] In a specific embodiment of the present invention, the sliding plate 1053 is provided with a through hole, and the hot melt plate 1032 is arranged corresponding to the through hole. The hot melt plate 1032 can pass through the through hole and abut against the pressing block.

[0084] In a specific embodiment of the utility model, a limit plate 110 is fixed on the sliding plate 1053 corresponding to the sensing piece 109, so that when the sensing piece 109 senses the transmission sensor 108, it just abuts against the limit plate 110 to prevent the sensing piece 109 from continuing to move and disconnecting the sensing from the transmission sensor 108.

[0085] The utility model provides a toilet chair, such as Figures 1 to 19 As shown, including:

[0086] Plastic bag tightening sealing mechanism 1,

[0087] A chair frame 2, on which a seat plate 3 is mounted, and the seat plate 3 is provided with a toilet opening 301; the mounting shell 101 is fixed on the legs 201 of the chair frame 2 and is located below the seat plate 3, and the bag inlet 1011 corresponds to the toilet opening 301;

[0088] The annular shell 4 is used to store the plastic bag 8. The inner hole of the annular shell 4 corresponds to the bag inlet 1011 and is fixed on the top plate of the mounting shell 101. The inner hole wall of the annular shell 4 is provided with an annular gap for the output of the plastic bag 8. The inner bottom of the plastic bag 8 is used to hold the excrement dropped from the toilet seat 301.

[0089] The support plate 5 is used for supporting the plastic bag 8 , and the support plate 5 is installed on the mounting shell 101 corresponding to the toilet opening 301 .

[0090] The utility model provides a toilet chair, wherein the mouth of a plastic bag 8 is rolled outward to form a donut-like shape, the rolled plastic bag 8 is installed in an annular shell 4, the bottom of the plastic bag 8 is pulled out, and the side wall of the plastic bag 8 is output from the annular gap, the bag body of the plastic bag 8 is located at the plastic bag penetration gap 9, and the bottom of the plastic bag 8 is in contact with a support plate 5, the support plate 5 provides support for the plastic bag 8 to prevent the plastic bag 8 from being damaged, and the bottom of the plastic bag 8 covers the inner hole of the annular shell 4; the seat plate 3 is rotated to cover the chair frame 2, and excrement passes through the toilet opening 301 and the inner hole of the annular shell 4, is collected in the plastic bag 8, and is sealed by a plastic bag tightening sealing mechanism 1.

[0091] Preferably, the seat plate 3 is rotatably connected to the chair frame 2 .

[0092] Preferably, a connecting column 12 is fixed on the support plate 5, and a connecting hole is opened on the side wall of the mounting shell 101 corresponding to the connecting column 12, and the connecting column 12 is rotatably connected to the connecting hole. An angle limiting protrusion 10 is fixed on the support plate 5, and an arc hole 11 is opened on the mounting shell 101 corresponding to the angle limiting protrusion 10, and the angle limiting protrusion 10 is slidably connected in the arc hole 11.

[0093] In a specific embodiment of the utility model, the second bag opening tightening plate 1052 is provided with an insertion groove 10521 corresponding to the first bag opening tightening plate 1051, and the first bag opening tightening plate 1051 can be inserted into the insertion groove 10521 of the second bag opening tightening plate 1052 to better fit and tighten the bag opening of the plastic bag 8.

[0094] In a specific embodiment of the utility model, it also includes a clamping and conveying mechanism 6 for outputting the plastic bag 8 from the annular shell 4 and a breaking mechanism 7 for breaking the plastic bag 8 from the lower edge of the hot-melt sealing strip. The clamping and conveying mechanism 6 is installed on the inner wall of the installation shell 101 and is located above the guide rod assembly 102, and the breaking mechanism 7 is installed on the guide rod assembly 102 and is located below the plastic bag tightening and sealing mechanism 1.

[0095] After the plastic bag 8 is installed in the annular shell 4, the two sides of the plastic bag 8 are clamped onto the clamping and conveying mechanism 6, and the clamping and conveying mechanism 6 conveys the plastic bag 8 downward so that the bottom of the plastic bag 8 abuts against the support plate 5. After the convenience is completed, the plastic bag tightening and sealing mechanism 1 seals the plastic bag 8, and the breaking mechanism 7 breaks the lower edge of the hot-melt sealing strip of the plastic bag 8 to pack the excrement. The clamping and conveying mechanism 6 conveys the plastic bag 8 to the support plate 5 again, ready for next use.

[0096] In a specific embodiment of the utility model, Fig.10 As shown, the clamping and conveying mechanism 6 includes a transmission shaft 602, a conveying motor 603 and two symmetrically arranged misalignment compensation clamping wheel groups 601. The transmission shaft 602 is transmission-connected to the transmission input ends of two transmission gear groups 6016, and the conveying motor 603 is transmission-connected to the transmission input end of any one of the transmission gear groups 6016.

[0097] In a specific embodiment of the utility model, Figures 7 to 9 As shown, the misalignment compensation clamping wheel group 601 includes a fixed frame 6011, a rotating frame 6012, a first clamping and conveying wheel 6013, a second clamping and conveying wheel 6014, a torsion spring 6015 and a transmission gear group 6016. The rotating frame 6012 is rotatably connected to the fixed frame 6011 through a connecting shaft 6017. The first clamping and conveying wheel 6013 is rotatably connected to the fixed frame 6011. The second clamping and conveying wheel 6014 is rotatably connected to the rotating frame 6012. The torsion spring 6015 is sleeved on the connecting shaft 6017. One end of the torsion spring 6015 is connected to the fixed frame 6011, and the other end is fixed to the rotating frame 6012 to form a tendency for the rotating frame 6012 to approach the fixed frame 6011 so that the first clamping and conveying wheel 6013 and the second clamping and conveying wheel 6014 abut against each other; the transmission gear group 6016 is transmission-connected to the first clamping and conveying wheel 6013 and the second clamping and conveying wheel 6014 respectively.

[0098] The rotating frame 6012 is rotatably connected to the fixed frame 6011. Under the elastic force of the torsion spring 6015, the rotating frame 6012 has a tendency to rotate close to the fixed frame 6011, so that the second clamping and conveying wheel 6014 and the first clamping and conveying wheel 6013 always have a tendency to abut. In the absence of external force, the second clamping and conveying wheel 6014 and the first clamping and conveying wheel 6013 always roll and abut. When the starting end of the object to be conveyed needs to be placed between the second clamping and conveying wheel 6014 and the first clamping and conveying wheel 6013, the external force acts on the second clamping and conveying wheel 6014, causing a misalignment between the second clamping and conveying wheel 6014 and the first clamping and conveying wheel 6013. The misaligned gap is formed, and the misaligned gap can conveniently clamp the plastic bag 8 between the first clamping and conveying wheel 6013 and the second clamping and conveying wheel 6014. After the external force is lost, they can automatically abut against each other, and the second clamping and conveying wheel 6014 is reset to roll and abut against the first clamping and conveying wheel 6013 to compensate for the misaligned gap, eliminate the gap and clamp the plastic bag 8, so that the object can be conveniently clamped and conveyed; that is, the second clamping and conveying wheel 6014 can be separated from the first clamping and conveying wheel 6013 under the action of external force through the rotation position of the rotating frame 6012, and the object to be clamped can be directly clamped between the first clamping and conveying wheel 6013 and the second clamping and conveying wheel 6014, thereby improving the stability of clamping during installation.

[0099] In a specific embodiment of the present invention, the fixing frame 6011 and the conveying motor 603 are both fixed on the inner wall of the mounting shell 101 , and both ends of the transmission shaft 602 are rotatably connected to the inner wall of the mounting shell 101 .

[0100] In a specific embodiment of the present invention, the connecting shaft 6017 is fixedly connected to the rotating frame 6012 , and both ends of the connecting shaft 6017 are rotatably connected to the fixed frame 6011 .

[0101] In a specific embodiment of the utility model, it also includes a rotating shaft 6018, which is parallel to the connecting shaft 6017, and the rotating shaft 6018 is rotatably connected to the rotating frame 6012. The fixed frame 6011 is provided with an avoidance hole 6019, and the rotating shaft 6018 passes through and is movably connected in the avoidance hole 6019. The second clamping and conveying wheel 6014 is fixedly connected to the rotating shaft 6018.

[0102] The rotating shaft 6018 is movably connected in the avoidance hole 6019 , and can provide a movable space for the second clamping and conveying wheel 6014 , so that a dislocation gap can be formed between the first clamping and conveying wheel 6013 and the second clamping and conveying wheel 6014 .

[0103] In a specific embodiment of the utility model, the transmission gear set 6016 includes a first gear 60161, a second gear 60162 and a plurality of transmission gears 60163, the first gear 60161 is coaxially fixed on the first clamping and conveying wheel 6013, the second gear 60162 is fixed on the rotating shaft 6018, the first gear 60161 and the second gear 60162 are transmission connected, the plurality of transmission gears 60163 are rotatably connected to the fixed frame 6011 and are transmission connected in sequence, and the end gears of the plurality of transmission gears 60163 are transmission connected to the first gear 60161.

[0104] In a specific embodiment of the utility model, the fixed frame 6011 and the rotating frame 6012 are both inverted U-shaped frame plates, the rotating frame 6012 is located inside the fixed frame 6011, and the two ends of the connecting shaft 6017 are rotatably connected to the inner walls of the two side plates of the fixed frame 6011. The two side plates of the rotating frame 6012 are both provided with fixing holes corresponding to the connecting shaft 6017, and the fixing holes are fixedly connected to the connecting shaft 6017.

[0105] The inverted U-shaped clamping plate is convenient for fixing and connecting, and the rotating frame 6012 can be located inside the fixed frame 6011, which can shorten the distance between the first clamping and conveying wheel 6013 and the second clamping and conveying wheel 6014, making it easier for them to abut against each other.

[0106] In a specific embodiment of the utility model, mounting holes are provided on both side plates of the rotating frame 6012, and the rotating shaft 6018 passes through and is rotatably connected to the mounting holes; there are two avoidance holes 6019, which are respectively provided at the positions corresponding to the two mounting holes on the two side plates of the fixed frame 6011, and the two ends of the rotating shaft 6018 pass through the two avoidance holes 6019, and the second clamping and conveying wheel 6014 is located on the outer side of the fixed frame 6011 and is fixed on the rotating shaft 6018.

[0107] The rotating shaft 6018 can move in a small range in the avoidance hole 6019 to provide space guarantee for the misalignment gap between the first clamping and conveying wheel 6013 and the second clamping and conveying wheel 6014 .

[0108] In a specific embodiment of the utility model, Figures 10 to 14 As shown, the breaking mechanism 7 includes an extruding wheel group 701, a breaking wheel group 702 and a breaking motor 703. The extruding wheel group 701 is installed on the lower end surface of the pressing block, and the breaking wheel group 702 is installed on the lower end surface of the mounting plate 1031. A plastic bag penetration gap 9 is formed between the extruding wheel group 701 and the breaking wheel group 702. The rotating surfaces of the extruding wheel 7013 of the extruding wheel group 701 and the breaking wheel 7023 of the breaking wheel group 702 are arranged longitudinally. The extruding wheel 7013 and the breaking wheel 7023 can abut and clamp the plastic bag 8. The breaking motor 703 is fixed on the mounting plate 1031 and drives the breaking wheel 7023 to rotate through the power transmission component 704.

[0109] The pressing block is slidably connected to the guide rod assembly 102, and the driving mechanism 106 drives the pressing block to slide along the guide rod assembly 102 to abut against the hot melt plate 1032. The plastic bag 8 is located in the plastic bag penetration gap 9, and the pressing block squeezes the plastic bag 8 onto the hot melt plate 1032 to seal the bag mouth of the plastic bag 8. At the same time, the extrusion wheel 7013 of the extrusion wheel assembly 701 abuts against the breaking wheel 7023 of the breaking wheel assembly 702 and presses the plastic bag 8. The breaking motor 703 drives the breaking wheel 7023 to rotate, and the breaking wheel 7023 rotates with the extrusion wheel 7013 to break the plastic bag 8 from the hot melt seal to pack the excrement.

[0110] In a specific embodiment of the utility model, the extrusion wheel group 701 includes a fixed shell 7011, a mounting shaft 7012 and an extrusion wheel 7013. The outer top surface of the fixed shell 7011 is fixed to the lower end surface of the clamping block. The fixed shell 7011 is open on one side along the sliding direction of the clamping block. The mounting shaft 7012 is installed on the inner wall of the fixed shell 7011, and the extrusion wheel 7013 is rotatably connected to the mounting shaft 7012.

[0111] In a specific embodiment of the utility model, the extrusion wheel group 701 also includes a buffer member 7014, the buffering direction of the buffer member 7014 is the same as the sliding direction of the clamping block, and its fixed end is fixed to the inner wall of the fixed shell 7011, the buffering end of the buffer member 7014 is fixedly connected to the mounting shaft 7012, and the two ends of the mounting shaft 7012 are slidably connected to the inner walls of the fixed shell 7011 on both sides along the sliding direction of the clamping block.

[0112] When the fixed shell 7011 moves toward the hot melt block along with the pressing block, the extruding wheel 7013 and the breaking wheel 7023 abut against each other to clamp the plastic bag 8, and the extruding wheel 7013 and the breaking wheel 7023 collide with each other. The buffer 7014 can absorb the kinetic energy generated by the collision and can keep the extruding wheel 7013 and the breaking wheel 7023 clamped.

[0113] In a specific embodiment of the utility model, the buffer member 7014 includes a fixed column, a spring 70142 and a sliding claw 70143. The fixed column is fixed to the inner wall of the fixed shell 7011 along the sliding direction of the clamping block. The sliding claw 70143 is slidably connected to the fixed column. The spring 70142 is sleeved on the fixed column and one end is fixedly connected to the inner wall of the fixed shell 7011, and the other end is fixedly connected to the sliding claw 70143. The mounting shaft 7012 is fixed on the sliding claw 70143.

[0114] The spring 70142 is sleeved on the fixed column to provide a guide for the spring 70142 .

[0115] In a specific embodiment of the utility model, the sliding claw 70143 includes a sliding cylinder 70144, a fixed plate 70145 and a claw 70146. The sliding cylinder 70144 is sleeved and slidably connected to the fixed column. The sliding cylinder 70144 is located between the fixed column and the spring 70142. The fixed plate 70145 is fixed to one end of the sliding cylinder 70144 and fixedly connected to one end of the spring 70142. The claw 70146 is fixed to the fixed plate 70145, and the mounting shaft 7012 is clamped on the claw 70146.

[0116] In a specific embodiment of the utility model, two side walls of the fixed shell 7011 are provided with long holes 70111 along the sliding direction of the pressing block, and both ends of the installation shaft 7012 are slidably connected in the long holes 70111 in the sliding direction.

[0117] Both ends of the installation shaft 7012 are slidably connected in the long hole 70111 , thereby improving the stability of the installation shaft 7012 sliding axially along the guide rod 1021 .

[0118] In a specific embodiment of the utility model, the breaking wheel assembly 702 includes a support frame 7021, a rotating shaft 7022 and a breaking wheel 7023. The support frame 7021 is fixed to the lower end surface of the mounting plate 1031. The rotating shaft 7022 is parallel to the mounting shaft 7012 and is rotatably connected to the support frame 7021. The breaking wheel 7023 is fixedly connected to the rotating shaft 7022 corresponding to the extrusion wheel 7013. The breaking motor 703 drives the rotating shaft 7022 to rotate through the power transmission component 704.

[0119] Preferably, the power transmission assembly 704 includes a transmission gear 7041, a transfer gear 7042 and a plurality of connecting gears 7043. The plurality of connecting gears 7043 are all rotatably connected to the support frame 7021 and are sequentially transmission connected. The transmission gear 7041 is installed on the output shaft of the breaking motor 703, and the transfer gear 7042 is fixed on the rotating shaft 7022. The transmission gear 7041 is transmission connected to the transfer gear 7042 through a plurality of connecting gears 7043.

[0120] Preferably, Figures 17 to 18 As shown, the insert plate 13 can be used to clamp the plastic bag 8 between the first clamping and conveying wheel 6013 and the second clamping and conveying wheel 6014.

[0121] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A plastic bag tightening and sealing mechanism, characterized in that: include: An installation shell (101), wherein the installation shell (101) has a bag entry opening (1011) at the top and an opening at the bottom; A guide rod assembly (102), the guide rod assembly (102) being fixedly connected to the inner wall of the mounting housing (101); A hot melt sealing portion (103), wherein the hot melt sealing portion (103) is fixedly connected to one end of the guide rod assembly (102); a sliding pressing part (104), the sliding pressing part (104) being slidably connected to the guide rod assembly (102), the pressing end of the sliding pressing part (104) being arranged correspondingly to the heating end of the hot melt sealing part (103), and a plastic bag penetrating gap (9) being formed between the hot melt sealing part (103) and the sliding pressing part (104); A bag opening tightening assembly (105), the bag opening tightening assembly (105) comprising a plurality of first bag opening tightening plates (1051) and a plurality of second bag opening tightening plates (1052), the plurality of first bag opening tightening plates (1051) being fixed on the sliding pressing portion (104), the plurality of first bag opening tightening plates (1051) being all cut with bag opening tightening inclined surfaces, the plurality of second bag opening tightening plates (1052) being slidably mounted on one end of the guide rod assembly (102) close to the hot melt sealing portion (103), the plurality of second bag opening tightening plates (1052) being provided with bag opening gathering inclined surfaces arranged at an acute angle to the plurality of bag opening tightening inclined surfaces or their extension lines, corresponding to the plurality of bag opening tightening inclined surfaces; A driving mechanism (106) is installed on the inner wall of the installation shell (101) and drives the sliding pressing part (104) to approach or move away from the hot-melt sealing part (103) through a transmission component (107).

2. A plastic bag tightening and sealing mechanism according to claim 1, characterized in that: The guide rod assembly (102) comprises two guide rods (1021) and two linear bearings (1022); the two guide rods (1021) are located on both sides of the bag inlet (1011) and are symmetrically fixed on the inner wall of the mounting shell (101); the two linear bearings (1022) are correspondingly slidably connected to the two guide rods (1021); the sliding clamping portion (104) is fixed on the two linear bearings (1022); the hot-melt sealing portion (103) is fixed on one end of the two guide rods (1021); and the second bag opening tightening plate (1052) is slidably connected to the two guide rods (1021).

3. A plastic bag tightening and sealing mechanism according to claim 2, characterized in that: The bag mouth tightening assembly (105) also includes a sliding plate (1053) and an elastic buffer (1054), wherein the two ends of the sliding plate (1053) are respectively slidably connected to the two guide rods (1021), and a plurality of the second bag mouth tightening plates (1052) are fixed on the sliding plate (1053), and the elastic buffer (1054) is located between the sliding plate (1053) and the hot melt sealing part (103), and the two ends are respectively connected to the sliding plate (1053) and the hot melt sealing part (103).

4. A plastic bag tightening and sealing mechanism according to claim 3, characterized in that: The elastic buffer (1054) includes two buffer springs (10541), and the two buffer springs (10541) are correspondingly mounted on the two guide rods (1021). One end of the two buffer springs (10541) is fixedly connected to the hot-melt sealing part (103), and the other end is fixedly connected to the sliding plate (1053).

5. A plastic bag tightening and sealing mechanism according to claim 4, characterized in that: The sliding pressing portion (104) is a pressing block, and the pressing block is fixedly connected to the two linear bearings (1022).

6. A plastic bag tightening and sealing mechanism according to claim 5, characterized in that: The hot melt sealing part (103) includes a mounting plate (1031) and a hot melt plate (1032), wherein the mounting plate (1031) is fixed to one end of the two guide rods (1021), and the hot melt plate (1032) is fixed to the mounting plate (1031) and its heating end is arranged corresponding to the clamping end of the clamping block, and the plastic bag passes through the gap (9) formed between the clamping block and the hot melt plate (1032), and one end of the two buffer springs (10541) is fixedly connected to the mounting plate (1031), and the other end is fixedly connected to the sliding plate (1053).

7. A plastic bag tightening and sealing mechanism according to claim 6, characterized in that: The transmission assembly (107) comprises: Two belt transmission assemblies (1071) are symmetrically mounted on the inner wall of the mounting housing (101), and the two linear bearings (1022) are respectively connected to the power output ends of the two belt transmission assemblies (1071); A gear transmission assembly (1072), wherein the gear transmission assembly (1072) is rotatably connected to the inner wall of the mounting shell (101), the power input end of the gear transmission assembly (1072) is transmission-connected to the power output end of the driving mechanism (106), and the power output end of the gear transmission assembly (1072) is transmission-connected to the power input ends of the two belt transmission assemblies (1071).

8. A plastic bag tightening and sealing mechanism according to claim 7, characterized in that: It also includes two transmission sensors (108) and a sensing sheet (109) fixed on the linear bearing (1022); the two transmission sensors (108) are fixed on the inner wall of the mounting housing (101) and correspond to the upper part of the first and last ends of the movement stroke of the linear bearing (1022); the two transmission sensors (108) are electrically connected to the driving mechanism (106) through a controller.

9. A commode chair, characterized in that: A plastic bag tightening and sealing mechanism (1) comprising the plastic bag tightening and sealing mechanism (1) according to any one of claims 1 to 8, A chair frame (2), wherein a seat plate (3) is mounted on the chair frame (2), and the seat plate (3) is provided with a toilet opening (301); the mounting shell (101) is fixed on a leg (201) of the chair frame (2) and is located below the seat plate (3), and the bag inlet (1011) corresponds to the toilet opening (301); An annular shell (4) for storing plastic bags (8), the inner hole of the annular shell (4) being fixed on the top plate of the mounting shell (101) corresponding to the bag inlet (1011), the inner hole wall of the annular shell (4) being provided with an annular gap for outputting the plastic bags (8), and the inner bottom of the plastic bag (8) being used to hold excrement dropped from the toilet seat (301); A support plate (5) for supporting a plastic bag (8), wherein the support plate (5) is mounted on the mounting shell (101) corresponding to the toilet seat (301).

10. A commode chair according to claim 9, characterized in that: It also includes a clamping and conveying mechanism (6) for outputting the plastic bag (8) from the annular shell (4) and a breaking mechanism (7) for breaking the plastic bag (8) from the lower edge of the hot-melt sealing strip, wherein the clamping and conveying mechanism (6) is installed on the inner wall of the installation shell (101) and is located above the guide rod assembly (102), and the breaking mechanism (7) is installed on the guide rod assembly (102) and is located below the plastic bag tightening and sealing mechanism (1).

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