Self-wringing mop with fixed stroking sleeve

Abstract

The utility model provides a self-wringing mop with a fixed stroking sleeve, which comprises a mop rod and a positioning plate which is hinged with the mop rod and can be unfolded and folded relative to the mop rod, and the mop comprises a mop plate which can slide along the length direction relative to the positioning plate; a stroking sleeve is fixedly installed on the mop rod, a stroking opening is formed in the stroking sleeve, a water squeezing handle is installed on the mop rod in a sliding mode, and a clamping mechanism capable of being connected with the mop plate is arranged on the water squeezing handle. When the mop plate is in a folded cleaning state, the mop rod and the stroking opening are arranged in parallel, and the water squeezing handle drives the mop plate through the clamping mechanism to make the mop plate reciprocate on the stroking opening for cleaning and squeezing; the stroking sleeve is fixedly connected to the mop rod, the stroking sleeve is fixed in the mopping process, and the situation that the stroking sleeve slides down to the mop plate in the mopping process, so that use is affected is avoided; during water squeezing or cleaning, a user pulls the water squeezing handle, so that the mop plate is used for water squeezing or cleaning through the stroking sleeve.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning tools, in particular to a self-squeezing mop with a rolling cover and fixed. Background Art

[0002] A self-squeezing mop is a cleaning tool in people's daily life. In a conventional self-squeezing mop, the stroking cover is a movable structure. When people squeeze water from the mop, the squeezing handle drives the stroking cover to move. In daily use, the stroking cover is easy to move.

[0003] A Chinese patent document CN105996928A discloses a self-squeezing horizontal flat mop, comprising a mop rod, a flat mop head movably connected to the lower end of the mop rod, the mop rod is also provided with a squeezing handle, the squeezing handle is connected to the squeezing head through a connecting rod, the flat mop head can be rotated to be parallel to the mop rod and directly facing the squeezing head; the squeezing handle and the mop rod can slide relative to each other, when squeezing water, the flat mop head enters the squeezing head, and the flat mop head and the squeezing head move relative to each other to achieve squeezing water; when mopping the floor, the flat mop head is separated from the squeezing head; it is characterized in that: the connecting rod is also covered with a grip sleeve, the grip sleeve and the connecting rod can slide relative to each other, and the grip sleeve is connected to the mop rod. The mop has a sleeve that is not fixed during use and moves with the squeezing handle. The sleeve may move during use, affecting the user experience. Therefore, we provide a self-squeezing mop with a fixed sleeve. The sleeve is always fixedly mounted on the mop rod and will not move. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] The problem to be solved by the utility model is to provide a self-squeezing mop with a rolling cover fixed thereon, so as to overcome the defects in the prior art.

[0006] (II) Technical solution

[0007] In order to solve the technical problem, the utility model provides a self-squeezing mop with a fixed stroke sleeve, comprising a mop rod and a positioning plate hinged to the mop rod and capable of being unfolded and folded relative to the mop rod, the mop comprising a mop plate capable of sliding along its length direction relative to the positioning plate; a stroke sleeve is fixedly mounted on the mop rod, a stroke opening is provided on the stroke sleeve, a squeezing handle is slidably mounted on the mop rod, and a clamping mechanism that can be connected to the mop plate is provided on the squeezing handle; when the mop plate is in a folded cleaning state, the mop rod is arranged parallel to the stroke opening, and the squeezing handle drives the mop plate through the clamping mechanism to make it reciprocate on the stroke opening for cleaning and squeezing.

[0008] In some embodiments, the mop board includes a slide plate for mounting the wiping cloth, the slide plate is provided with a slide groove along its length direction for sliding cooperation with the slide plate, the slide groove is provided with a blocking portion, the wiping object assembly is provided with a limiting plate, and the limiting plate is provided with a first limiting portion cooperating with the blocking portion.

[0009] In some embodiments, the locking mechanism includes a hook arranged at the lower end of the water squeezing handle, and the mop board is correspondingly provided with a connecting hole; when the mop board is in a folded cleaning state, the connecting hole is engaged with the hook, so that the water squeezing handle can synchronously drive the mop board to slide back and forth when it slides back and forth on the mop rod.

[0010] In some embodiments, a positioning plate is fixedly provided in the mop board, and the protrusion, the spring and the transmission member are installed in the installation groove of the positioning plate. The installation groove is provided with a guide groove for guiding the protrusion.

[0011] In some embodiments, a snap-fitting piece for initially positioning the water squeezing handle is disposed on the stroking sleeve, and a snap-fitting protrusion is disposed on the side of the water squeezing handle.

[0012] In some embodiments, a lock is slidably mounted on the mop plate, a limiting protrusion is provided on the lock, and a groove that can cooperate with the limiting protrusion is correspondingly provided on the lock.

[0013] In some embodiments, an unlocking portion is provided on the mop plate, the locking element is slidably arranged along the width direction, a return spring is provided on the side of the locking element away from the unlocking portion, and the return spring provides a thrust for the locking element to always move toward the hook.

[0014] In some embodiments, a transmission protrusion is provided on the mop rod. When the mop is in a folded cleaning state, the transmission member is subjected to pressure from the transmission protrusion, and the transmission member transmits power to the protrusion member. When the mop is in an unfolded mopping state, the transmission protrusion is separated from the transmission member.

[0015] In some embodiments, when the mop is in the unfolded mopping state, the mop plate is locked with the mop rod through a locking mechanism, the locking mechanism includes a radially moving protrusion, a spring and a transmission part, and the limiting plate is provided with a first limiting hole that can be locked with the protrusion. When the mop is in the unfolded mopping state, the protrusion is locked in the first limiting hole, and when the mop is in the folded cleaning state, the mop rod relatively controls the protrusion to disengage it from the first limiting hole.

[0016] In some embodiments, the positioning plate is provided with a limiting baffle which plays a limiting role when the limiting plate moves, and the limiting plate is provided with a second limiting hole which cooperates with the limiting baffle.

[0017] (III) Beneficial effects

[0018] The utility model provides a self-squeezing mop with a fixed stroking sleeve, comprising a mop rod and a positioning plate which is hinged to the mop rod and can be unfolded and folded relative to the mop rod, and the mop comprises a mop plate which can slide relative to the positioning plate along its length direction; a stroking sleeve is fixedly installed on the mop rod, a stroking opening is provided on the stroking sleeve, a squeezing handle is slidably installed on the mop rod, and a clamping mechanism which can be connected with the mop plate is provided on the squeezing handle; when the mop plate is in a folded cleaning state, the mop rod is arranged in parallel with the stroking opening, and the squeezing handle drives the mop plate through the clamping mechanism to make it reciprocate on the stroking opening for cleaning and squeezing.

[0019] The mop cover is fixedly connected to the mop rod. When mopping the floor, the mop cover is fixed and will not accidentally fall onto the mop board to affect the use. When squeezing water or cleaning, the fixed mop cover can better squeeze the mop surface. The user pulls the squeezing handle to squeeze water or clean the mop board through the mop cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is a structural schematic diagram of a self-squeezing mop with a fixed sleeve according to the utility model;

[0022] Figure 2 It is a schematic diagram of the structure of the utility model in the water squeezing state;

[0023] Figure 3 Practical Figure 2 A magnified view of part B;

[0024] Figure 4 This is a schematic diagram of the structure of the lock and the return spring of the utility model;

[0025] Figure 5 It is a cross-sectional view of the utility model in the water squeezing state;

[0026] Figure 6 For this utility model Figure 5 A magnified view of part A;

[0027] Figure 7 This is a cutaway diagram of the utility model;

[0028] Figure 8 It is an enlarged view of part C in utility model 6;

[0029] Fig. 9 It is a structural schematic diagram of the utility model stroking cover and wiping article assembly;

[0030] Fig.10 This is a schematic diagram of the structure of the utility model in the hook disengagement state;

[0031] Fig.11 It is a schematic diagram of the utility model sleeve structure;

[0032] Fig.12 It is a schematic diagram of the back structure of the utility model;

[0033] Fig.13 It is a schematic diagram of the structure of the utility model limit plate;

[0034] Fig.14 It is a schematic diagram of the structure of the utility model skateboard;

[0035] Fig.15 It is a schematic diagram of the combined structure of the limit plate and the positioning plate of the utility model;

[0036] Fig.16 This is a schematic diagram of the structure of a utility model water squeezing handle;

[0037] Fig.17 It is a schematic diagram of the structure of the utility model sleeve and water squeezing handle;

[0038] Fig.18 It is a schematic diagram of the combined structure of the locking mechanism and the positioning plate of the utility model;

[0039] Fig.19 It is a schematic diagram of the structure of the utility model positioning plate;

[0040] Fig. 20 This is a schematic diagram of the back structure of the utility model skateboard;

[0041] Fig.21 It is a structural schematic diagram of the locking mechanism of the utility model;

[0042] Fig. 22 It is a schematic diagram of the structure of the utility model lock;

[0043] Fig.23 It is a schematic diagram of the structure of a utility model mop board.

[0044] The names of the components corresponding to the reference numerals in the figure are: 2, mop plate; 3, mop rod; 5, stroking sleeve; 6, water squeezing handle; 7, locking mechanism; 9, locking protrusion; 10, locking member; 11, locking mechanism; 12, mounting groove; 13, connecting hole; 201, positioning plate; 2011, guide slide groove; 2012, limit baffle; 2013, limit shoulder; 202, limit plate; 203, slide plate; 204, slide groove; 205, mop bottom plate; 2021, The first limiting hole; 2022, the second limiting hole; 2023, the first limiting part; 2041, the blocking part; 301, the transmission protrusion; 302, the locking piece; 3021, the anti-loosening hole; 501, the smoothing mouth; 701, the hook; 7011, the anti-loosening buckle; 702, the locking piece; 7021, the reset spring; 7022, the limiting protrusion; 7023, the unlocking part; 703, the groove; 1101, the protruding piece; 1102, the spring; 1103, the transmission part. DETAILED DESCRIPTION

[0045] The present application is described in detail below with reference to the accompanying drawings and specific embodiments.

[0046] The following describes the implementation methods of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The present application can also be implemented or applied through other different specific implementation methods, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, in the absence of conflict, the following embodiments and the features in the embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work belong to the scope of protection of the present application.

[0047] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present application, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspect described herein can be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this device and / or practice this method.

[0048] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. The drawings only show components related to the present application rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0049] Additionally, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the examples can be practiced without these specific details.

[0050] The technical solutions provided by various embodiments of the present application are described below in conjunction with the accompanying drawings.

[0051] See also Figures 1 to 23 The utility model provides a self-squeezing mop with a fixed stroke sleeve, comprising a mop rod 3 and a positioning plate 201 which is hinged to the mop rod 3 and can be unfolded and folded relative to the mop rod 3, the mop comprises a mop plate 2 which can slide relative to the positioning plate 201 along its length direction; a stroke sleeve 5 is fixedly installed on the mop rod 3, a stroke opening 501 is provided on the stroke sleeve 5, a squeezing handle 6 is slidably installed on the mop rod 3, and a clamping mechanism 7 which can be connected with the mop plate 2 is provided on the squeezing handle 6; when the mop plate 2 is in a folded cleaning state, the mop rod 3 is arranged parallel to the stroke opening 501, and the squeezing handle 6 drives the mop plate 2 through the clamping mechanism 7 to make it reciprocate on the stroke opening 501 for cleaning and squeezing.

[0052] When in use, the mop rod 3 is rotated to a state parallel to the mop plate 2. At this time, the transmission member 1103 inside the stopper 8 is subjected to the pressure given by the mop rod 3, thereby driving the protrusion 1101 to retract inward. At this time, the locking mechanism 7 no longer limits the mop plate 2. The squeezing handle 6 is pulled to unlock. The squeezing handle 6 moves radially on the mop rod 3, driving the mop plate 2 to move, and cooperates with the sleeve 5 fixed on the mop rod 3 to achieve the purpose of self-squeezing water. The sleeve 5 is fixedly connected to the mop rod 3. When mopping the floor, the sleeve 5 is fixed, and the use will not be affected by the sleeve 5 accidentally falling during the mopping process. When squeezing water or cleaning, the fixed sleeve 5 can better squeeze the mop surface. The user pulls the squeezing handle 6 to squeeze water or clean the mop plate 2 through the sleeve 5.

[0053] In some embodiments, see Figures 1 to 3 The engaging mechanism 7 includes a plurality of hooks 701 arranged at the lower end of the squeezing handle 6, and the arrangement of the plurality of hooks 701 enhances the overall stability; the mop plate 2 is correspondingly provided with connecting holes 13; when the mop plate 2 is in the folding and washing state, the connecting holes 13 are engaged with the hooks 701, so that when the squeezing handle 6 slides back and forth on the mop rod 3, the mop plate 2 is synchronously driven to slide back and forth; when the folding and washing state is switched to the unfolded mopping state, the connecting holes 13 are disengaged from the hooks 701.

[0054] In some embodiments, Figures 2 to 23 As shown, the mop board 2 includes a slide plate 203 and a mop bottom plate 205 for mounting a wiping cloth. The slide plate 203 is slidably mounted on the positioning plate 201 through a limiting plate 202, and the mop bottom plate 205 is connected to the slide plate 203 through a buckle.

[0055] In some embodiments, Figures 2 to 8 As shown, a snap-fitting piece 10 for initially positioning the squeezing handle 6 is provided on the sleeve 5, and a snap-fitting protrusion 9 is provided on the side of the squeezing handle 6. The arrangement of the snap-fitting piece 10 and the snap-fitting protrusion 9 ensures that the squeezing handle 6 is in a designated position during daily use of the mop and will not move due to the use of the mop.

[0056] In one embodiment, an anti-loosening lock 302 that can be used to position the hook 701 is slidably installed on the slide plate 203, an anti-loosening hole 3021 is provided on the lock 302, and an anti-loosening buckle 7011 is correspondingly provided at the end of the hook 701; when the slide plate 203 performs a reciprocating motion when the mop is in a folded cleaning state, the anti-loosening buckle 7011 and the anti-loosening hole 3021 will cooperate.

[0057] In one example, if Figures 1 to 5 As shown, a positioning plate 201, a protruding member 1101, a spring 1102 and a transmission member 1103 are fixedly arranged in the mop plate 2, and are installed in the mounting groove 12 of the positioning plate 201. The transmission member 1103 is connected to the mounting groove 12 by a hinge, and a guide slot 2011 is arranged in the mounting groove 12 to guide the protruding member 1101. The guide slot 2011 can enhance the overall stability and guide the protruding member 1101.

[0058] In one example, if Figure 5 As shown, a lock 302 is slidably mounted on the mop board 2, and a limiting protrusion 7022 is provided on the lock 302, and a groove 703 that can cooperate with the limiting protrusion 7022 is correspondingly provided on the lock 302. The number of locks 302 corresponds to the number of hooks 701, and the lock 302 is used to lock and engage the water squeezing handle 6 with the slide plate 203 when the mop is in the folded washing state, so that the mop board 2 can be driven to move when the water squeezing handle 6 moves.

[0059] In one example, if Figures 3 to 15As shown, the lock 302 is provided with a limiting protrusion 7022, the mop plate 2 is provided with an unlocking portion 7023, the lock 302 is slidably arranged along the width direction, and a reset spring 7021 is arranged on the side of the lock 302 away from the unlocking portion 7023, the reset spring 7021 provides a thrust for the lock 302 to always move toward the hook 701, and the unlocking portion 7023 is used to relatively push the limiting protrusion 7022 to disengage the anti-loosening hole 3021 from the anti-loosening buckle 7011. The lock 302 moves radially in the groove 703. In daily use, the limiting protrusion 7022 is in the groove 703. When the mop rod 3 is parallel to the mop plate 2, the hook 701 can be directly placed in the lock 302. When squeezing water, the limiting protrusion 7022 is separated from the groove 703, and the locking member 702 is inwardly interference-fitted with the hook 701 to fix the hook 701.

[0060] In one example, if Figures 6 to 19 As shown, the mop includes a mop floor 205 on which a wiping cloth is installed, a slide plate 203 is provided with a slide groove 204 slidably matched with the slide plate 203 along its length direction, a blocking portion 2041 is provided on the slide groove 204, the mop board 2 is provided with a limiting plate 202, and the limiting plate 202 is provided with a first limiting portion 2023 matched with the blocking portion 2041, and the slide plate 2023 is symmetrically arranged on the left and right.

[0061] In one example, if Fig.16 As shown, the hook 701 and the water squeezing handle 6 are integrally formed, which improves the overall structural strength and prolongs the service life.

[0062] In one example, if Figures 15 to 23 As shown, a limit block 2031 is provided on the slide plate 203, a limit shoulder 2013 is provided on the top of the positioning plate 201, and the limit shoulder 2013 corresponds to the limit shoulder 2013 when the slide plate 203 moves, and is used to limit the initial position of the slide plate 203 and the positioning plate 201, and a limit baffle 2012 is provided on the positioning plate 201 to limit the limit plate 202 when it moves, and a second limit hole 2022 is provided in the mop plate 2 to cooperate with the limit baffle 2012. The first limit hole 2021 is used to limit the hook 701, and the second limit hole 2022 is used to limit the mop plate 2.

[0063] In one example, if Fig.10As shown, when the mop is in the unfolded mopping state, the mop plate 2 is locked with the limiting plate 202 through the locking mechanism 11. The locking mechanism 11 includes a radially moving protrusion 1101, a spring 1102 and a transmission member 1103. The limiting plate 202 is provided with a first limiting hole 2021 that can be locked with the protrusion 1101. When the mop is in the unfolded mopping state, the protrusion 1101 is locked in the first limiting hole 2021. When the mop is in the folded cleaning state, the mop rod 3 relatively controls the protrusion 1101 to disengage from the first limiting hole 2021.

[0064] In one example, if Figures 1 to 11 As shown, a transmission protrusion 301 is provided on the mop rod 3. When the mop is in the folded cleaning state, the transmission member 1103 is subjected to the pressure of the transmission protrusion 301, and the transmission member 1103 transmits the protrusion 1101. When the mop is in the unfolded mopping state, the transmission protrusion 301 is separated from the transmission member 1103.

[0065] In one example, if Fig.11 As shown, a plurality of rollers for guiding the movement of the mop plate 2 are arranged inside the sleeve 5, and the rollers can better guide the movement of the mop plate 2 when the mop squeezes water.

[0066] The same and similar parts between the various embodiments in this specification can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0067] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A self-squeezing mop with a sleeve fixed thereon, comprising a mop rod (3) and a positioning plate (201) hinged to the mop rod (3) and capable of being unfolded and folded relative to the mop rod (3), characterized in that: The positioning plate (201) is slidably mounted with a mop plate (2) along its length direction; a stroking sleeve (5) is fixedly mounted on the mop rod (3), a stroking opening (501) is provided on the stroking sleeve (5), a water squeezing handle (6) is slidably mounted on the mop rod (3), and a clamping mechanism (7) which can be connected with the mop plate (2) is provided on the water squeezing handle (6); when the mop plate (2) is in a folded cleaning state, the mop rod (3) is arranged parallel to the stroking opening (501), and the water squeezing handle (6) drives the mop plate (2) through the clamping mechanism (7) to make it reciprocate on the stroking opening (501) for cleaning and squeezing.

2. A self-squeezing mop with a sleeve fixed as claimed in claim 1, characterized in that: The mop board (2) comprises a slide plate (203) and a mop bottom plate (205) for mounting a wiping cloth.

3. A self-squeezing mop with a sleeve fixed as claimed in claim 2, characterized in that: The engaging mechanism (7) comprises a hook (701) arranged at the lower end of the squeezing handle (6), and a connecting hole (13) is correspondingly arranged on the mop plate (2); when the mop plate (2) is in a folded cleaning state, the connecting hole (13) engages with the hook (701), so that when the squeezing handle (6) slides back and forth on the mop rod (3), it simultaneously drives the slide plate (203) to slide back and forth.

4. A self-squeezing mop with a sleeve fixed as claimed in claim 3, characterized in that: An anti-loosening lock (302) for positioning the hook (701) is slidably mounted on the mop plate (2); an anti-loosening hole (3021) is provided on the lock (302); and an anti-loosening buckle (7011) is correspondingly provided at the end of the hook (701); when the slide plate (203) performs reciprocating motion in the folded cleaning state, the anti-loosening buckle (7011) cooperates with the anti-loosening hole (3021).

5. A self-squeezing mop with a sleeve fixed as claimed in claim 4, characterized in that: The locking member (302) is provided with a limiting protrusion (7022), and the positioning plate (201) is provided with an unlocking portion (7023). The unlocking portion (7023) is used to relatively push the limiting protrusion (7022) so that the anti-loosening hole (3021) is disengaged from the anti-loosening buckle (7011). The locking member (302) is slidably arranged along the width direction of the mop plate (2). A return spring (7021) is arranged on a side of the locking member (302) away from the unlocking portion (7023). The return spring (7021) provides a thrust for the locking member (302) to always move toward the hook (701).

6. A self-squeezing mop with a sleeve fixed as claimed in claim 1, characterized in that: When the mop is in an unfolded mopping state, the mop plate (2) is locked with the positioning plate (201) through a locking mechanism (11), and the locking mechanism (11) comprises a protruding piece (1101) installed in the positioning plate (201) and a first limiting hole (2021) provided on the mop plate (2). When the mop is in an unfolded mopping state, the protruding piece (1101) is locked on the mop plate (2); when the mop is in a folded cleaning state, the mop rod (3) relatively controls the protruding piece (1101) to be disengaged from the first limiting hole (2021).

7. A self-squeezing mop with a sleeve fixed as claimed in claim 2, characterized in that: A limit block (2031) is provided on the slide plate (203), and a limit shoulder (2013) is provided on the top of the positioning plate (201). The limit shoulder (2013) corresponds to the limit shoulder (2013) when the slide plate (203) moves, and is used to limit the initial position of the slide plate (203) and the positioning plate (201).

8. The self-squeezing mop with a sleeve fixed as claimed in claim 1, characterized in that: The stroking sleeve (5) is provided with a snap-fitting piece (10) for initially positioning the water squeezing handle (6), and the side surface of the water squeezing handle (6) is provided with a snap-fitting protrusion (9) corresponding to the snap-fitting piece (10).

9. A self-squeezing mop with a sleeve fixed thereon as claimed in claim 6, characterized in that: The locking mechanism (11) further comprises a spring (1102) and a transmission member (1103), wherein the transmission member (1103) is hingedly mounted on the positioning plate (201), and a transmission protrusion (301) is provided on the mop rod (3). When the mop is switched from an unfolded mopping state to a folded cleaning state, the transmission protrusion (301) relatively pushes the transmission member (1103), thereby driving the protrusion (1101) to disengage from the first limiting hole (2021), and at this time, the mop plate (2) can slide relative to the positioning plate (201).

10. The self-squeezing mop with a sleeve fixed thereon as claimed in claim 2, characterized in that: The slide plate (203) is slidably mounted on the positioning plate (201) via a limiting plate (202); the positioning plate (201) is provided with a limiting baffle (2012) for limiting the movement of the limiting plate (202); a second limiting hole (2022) cooperating with the limiting baffle (2012) is provided in the limiting plate (202); the slide plate (203) is provided with a sliding groove (204) slidably cooperating with the slide plate (203) along its length direction; a blocking portion (2041) is provided on the sliding groove (204); and the limiting plate (202) is provided with a first limiting portion (2023) cooperating with the blocking portion (2041).

Images