A detachable tile screed

Abstract

The application relates to a detachable ceramic tile leveler, and relates to the technical field of decoration. The application specifically comprises a leveler main body and a jointing needle, the leveler main body comprises a handle, a handle contraction opening connected with the handle, and the jointing needle is clamped in the handle contraction opening; when the handle is pulled, the handle contraction opening is opened, and the jointing needle falls from the handle contraction opening; when the handle is released, the handle contraction opening is tightened, and the jointing needle is clamped in the handle contraction opening. When the handle is pulled, the handle contraction opening is opened, and the jointing needle falls from the handle contraction opening; when the handle is released, the handle contraction opening is tightened, and the jointing needle is clamped in the handle contraction opening, so that the jointing needle is replaced, the ceramic tile leveler can be easily taken out from the ceramic tile gap by replacing the jointing needle, the ceramic tile leveler is convenient and fast to use, and the ceramic tile leveler can be recycled.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of decoration, in particular to a detachable ceramic tile leveling device. BACKGROUND

[0002] The existing ceramic tile leveling device is generally inserted into the gap between two adjacent ceramic tiles for leveling. After leveling, the leveling device needs to be removed after the glue or mortar behind the ceramic tile solidifies, so that the leveling device can be reused multiple times. However, due to the small gap between the ceramic tiles, the solidified glue or mortar may adhere to the joint needle, making it difficult to remove the joint needle from the ceramic tile gap, thereby preventing the leveling device from being reused. The joint needle remaining in the ceramic tile gap may pose a safety risk and cause harm to people.

[0003] Chinese patent CN207332267U, published on May 8, 2018, discloses a ceramic tile leveling device. The connecting column has a handle integrally arranged at the upper end, a hook is connected to the lower end of the connecting column, an external thread is arranged on the outer wall of the connecting column, and a nut is rotatably fixed on the external thread. The hook includes an extension rod and a one-letter type alignment support arranged perpendicularly to the extension rod. The beneficial effects of the utility model are as follows: 1. The utility model solves the problem of unevenness of ceramic tiles during paving and construction, which affects the construction quality and progress, and better and faster completes the ground ceramic tile construction operation, making the construction quality more excellent. 2. It can be fully recycled and reused. 3. The structure is simpler and the cost is lower. 4. The thread is tensioned, which has enough force to pull and level, solving the problem of insufficient pulling force of the wedge block and rack. 5. The one-letter type alignment support is too long and may cause the phenomenon of hollowing. However, the hook of the ceramic tile leveling device is fixedly connected to the connecting column, and it is difficult to remove the hook from the ceramic tile gap after leveling, thereby preventing the leveling device from being reused. SUMMARY

[0004] The present application aims to provide a detachable ceramic tile leveling device that can facilitate the removal of the ceramic tile leveling device from the ceramic tile gap, thereby achieving the recycling of the ceramic tile leveling device.

[0005] The present application provides a detachable ceramic tile leveling device, which includes a leveling device main body and a joint needle. The leveling device main body includes a handle and a handle retraction opening connected to the handle. The joint needle is clamped in the handle retraction opening. When the handle is pulled, the handle retraction opening is opened, and the joint needle falls out of the handle retraction opening. When the handle is released, the handle retraction opening is tightened, and the joint needle is clamped in the handle retraction opening.

[0006] Further, the leveling device body further comprises a sleeve surrounding the handle contraction opening, and a locking cover arranged outside the sleeve, the sleeve is provided with external threads, and the locking cover is provided with a threaded hole screwing with the external threads.

[0007] Further, the inner wall of the sleeve is provided with a plurality of limiting grooves with gradually decreasing diameters from top to bottom, the handle contraction opening comprises a connecting plate connected with the handle, and a plurality of elastic clamping claws arranged at the bottom of the connecting plate, when the handle drives the handle contraction opening to move up and down in the sleeve, the plurality of elastic clamping claws are sequentially abutted with the plurality of limiting grooves.

[0008] Further, the handle comprises a grip for holding by hand, and a pull rod connected with the grip at one end and connected with the connecting plate at the other end.

[0009] Further, the handle further comprises a spring sleeved on the pull rod, one end of the spring is abutted with the sleeve, and the other end of the spring is abutted with the connecting plate.

[0010] Further, the joint needle is provided with a clamping joint clamped with the handle contraction opening, and each of the plurality of elastic clamping claws is provided with a hook clamped with the clamping joint.

[0011] Further, the joint needle further comprises a needle body connected with the clamping joint at one end, and a needle head connected with the other end of the needle body and abutted with the ground where the tiles are jointed, the cross-sectional area of the needle head is greater than that of the needle body.

[0012] Further, the connection between the needle body and the needle head is provided with a breaking groove.

[0013] Further, the inner wall of the sleeve is provided with a plurality of steps, and the plurality of limiting grooves are arranged on the plurality of steps respectively.

[0014] Further, the locking cover comprises a screwing portion, an abutting portion arranged at the bottom of the screwing portion, and a plurality of reinforcing ribs connecting the screwing portion and the abutting portion, the threaded hole penetrates through the screwing portion and the abutting portion, and the cross-sectional diameter of the abutting portion is greater than that of the screwing portion.

[0015] The detachable tile leveling device has the following advantages:

[0016] (1) When the tile leveling device pulls the handle, the handle contraction opening is opened, and the joint needle falls out of the handle contraction opening; when the handle is released, the handle contraction opening is tightened, and the joint needle is clamped in the handle contraction opening, so that the joint needle is replaced.

[0017] (2) The ceramic tile leveler can be easily taken out from the ceramic tile gap by replacing the jointing needle, which is convenient and fast, and thus the ceramic tile leveler can be recycled;

[0018] (3) When leveling, the jointing needle is inserted into the gap between the two adjacent ceramic tiles and abuts against the ground in the gap, and then the height of the locking cover on the sleeve is adjusted through the cooperation of the threaded hole and the external thread, so that the bottom of the locking cover abuts against the surfaces of the two adjacent ceramic tiles at the same time, thereby realizing the leveling of the two adjacent ceramic tiles;

[0019] (4) The handle drives the elastic clamps to be matched with the limiting grooves with gradually increasing cross-sectional diameters from top to bottom on the inner wall of the sleeve, the limiting grooves extrude the elastic clamps, and the elastic clamps are opened and tightened;

[0020] (5) The spring is sleeved on the pull rod, one end of the spring abuts against the sleeve in the sleeve, and the other end abuts against the connecting plate, the spring can push the handle to automatically move downward, and thus the use of the ceramic tile leveler is more convenient;

[0021] (6) The hooks are arranged on the plurality of elastic clamps, and the clamping joints are arranged on the top of the jointing needle, when the plurality of elastic clamps are tightened, the hooks on the elastic clamps are clamped with the clamping joints on the top of the jointing needle, and thus the clamping between the handle contraction opening and the jointing needle is more stable;

[0022] (7) The cross-sectional area of the needle head is greater than that of the needle body, the area in contact with the ground is increased, and thus the jointing needle is more stable in the ceramic tile gap, and is not easy to shake along the ceramic tile gap and cause leveling failure;

[0023] (8) The breaking groove is arranged on the needle body, so that the needle body is broken at the breaking groove, and thus when the ceramic tile leveler is taken out from the ceramic tile gap after leveling, the jointing needle is broken more easily and labor-saving. BRIEF DESCRIPTION OF DRAWINGS

[0024] The accompanying drawings, which are incorporated into and form a part of the specification, illustrate embodiments of the present application and, together with the description, serve to explain the principles of the application. In these drawings, like reference numerals are used to represent similar elements.

[0025] Figure 1 FIG. 1 is a structural schematic view of a detachable ceramic tile leveler according to an embodiment of the present application;

[0026] Figure 2 FIG. 2 is a sectional view of the detachable ceramic tile leveler according to the embodiment of the present application;

[0027] Figure 3It is a mounting schematic view of a jointing needle of a detachable ceramic tile leveler in a handle contraction opening of an embodiment of the present application.

[0028] Figure 4 It is a structure schematic view of a locking cover of a detachable ceramic tile leveler of an embodiment of the present application.

[0029] Figure 5 It is an internal structure schematic view of a sleeve of a detachable ceramic tile leveler of an embodiment of the present application.

[0030] In the figure: 1, leveler main body; 11, handle; 111, grip; 112, pull rod; 113, spring; 12, handle contraction opening; 121, connecting plate; 122, elastic clamping jaw; 13, sleeve; 131, external thread; 132, limiting groove; 14, locking cover; 141, screwing part; 142, abutting part; 143, reinforcing rib; 144, threaded hole; 2, jointing needle; 21, clamping joint; 22, needle body; 23, needle head; 24, breaking groove. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application, and all other embodiments obtained by those skilled in the art without creative labor based on the embodiments in the present application belong to the protection scope of the present application.

[0032] Please refer to Figures 1-5 The detachable ceramic tile leveler of an embodiment of the present application comprises a leveler main body 1 and a jointing needle 2, the leveler main body 1 comprises a handle 11 and a handle contraction opening 12 connected with the handle 11, and the jointing needle 2 is clamped in the handle contraction opening 12; when the handle 11 is pulled, the handle contraction opening 12 is opened, and the jointing needle 2 falls out of the handle contraction opening 12; when the handle 11 is released, the handle contraction opening 12 is tightened, and the jointing needle 2 is clamped in the handle contraction opening 12.

[0033] The existing ceramic tile leveler is generally inserted into the gap between two adjacent ceramic tiles for leveling, and needs to be taken out after the adhesive or mortar behind the ceramic tile is solidified, so that the leveler can be repeatedly used. However, since the gap between the ceramic tiles is small, and the solidified adhesive or mortar will adhere to the jointing needle 2, the jointing needle 2 is difficult to take out from the ceramic tile gap, so that the leveler cannot be repeatedly used, and the jointing needle 2 remaining in the ceramic tile gap will cause safety risks and harm to people.

[0034] In the application, the leveling device main body 1 of the tile leveling device includes a handle 11 and a handle retraction opening 12, the gap-finding needle 2 is clamped with the handle retraction opening 12, when the tile leveling device is leveling, the gap-finding needle 2 is inserted into the gap between the tiles, after the glue behind the tiles is solidified, the gap-finding needle 2 is broken in the tile gap, then the remaining gap-finding needle 2 and the leveling device main body 1 can be easily taken out from the tile gap, then the handle 11 is pulled, the handle retraction opening 12 is opened, the broken gap-finding needle 2 falls from the handle retraction opening 12, a new gap-finding needle 2 is placed in the handle retraction opening 12, the handle 11 is loosened, the handle retraction opening 12 is tightened, the new gap-finding needle 2 is clamped, and the next leveling work is carried out. Because the gap of the tile is small, the gap-finding needle 2 is less used, the tile leveling device can be easily taken out from the tile gap by replacing the gap-finding needle 2, which is convenient and fast, and the tile leveling device can be recycled.

[0035] The leveling device main body 1 further includes a sleeve 13 surrounding the periphery of the handle retraction opening 12, and a locking cover 14 arranged outside the sleeve 13, the sleeve 13 is provided with external threads 131, and the locking cover 14 is provided with a threaded hole 144 screwing with the external threads 131. The sleeve 13 is arranged outside the periphery of the handle retraction opening 12, the handle 11 extends into the handle retraction opening 12 from the top of the sleeve 13, the gap-finding needle 2 extends out of the bottom of the sleeve 13 and is clamped with the handle retraction opening 12, the sleeve 13 is provided with external threads 131, the locking cover 14 is provided with a threaded hole 144, the sleeve 13 and the locking cover 14 are screwed through the cooperation of the threaded hole 144 and the external threads 131. When the locking cover 14 is screwed with the sleeve 13, the height of the locking cover 14 on the sleeve 13 can be adjusted. When the tile leveling device is leveling, the gap-finding needle 2 is first inserted into the gap between the two adjacent tiles and abuts against the ground in the gap, then the height of the locking cover 14 on the sleeve 13 is adjusted through the cooperation of the threaded hole 144 and the external threads 131, so that the bottom of the locking cover 14 abuts against the surfaces of the two adjacent tiles at the same time.

[0036] In the application, the gap-finding needle 2 is in T-shaped structure, and the use method of the tile leveling device is that the gap-finding needle 2 is first inserted into the gap between the two adjacent tiles and abuts against the ground in the tile gap, then the tile leveling device is rotated, because there is a gap between the tile and the ground, the two ends of the gap-finding needle 2 in T-shaped structure abut against the bottoms of the two tiles respectively, that is, the two ends of the gap-finding needle 2 hold the bottoms of the two tiles respectively, finally the height of the locking cover 14 on the sleeve 13 is adjusted, so that the bottom of the locking cover 14 abuts against the surfaces of the two adjacent tiles at the same time, that is, the locking cover 14 is pressed on the surfaces of the two tiles, thereby the leveling of the two adjacent tiles is realized.

[0037] In the embodiment, the inner wall of the sleeve 13 is provided with a plurality of limiting grooves 132 with gradually decreasing diameters from top to bottom, the handle retraction opening 12 includes a connecting plate 121 connected with the handle 11, and a plurality of elastic clamping claws 122 arranged on the bottom of the connecting plate 121. When the handle 11 drives the handle retraction opening 12 to move up and down in the sleeve 13, the plurality of elastic clamping claws 122 are sequentially abutted with the plurality of limiting grooves 132. The inner wall of the sleeve 13 is provided with a plurality of limiting grooves 132 with gradually decreasing diameters from top to bottom, the handle retraction opening 12 is connected with the handle 11 through the connecting plate 121, the bottom of the connecting plate 121 is provided with a plurality of elastic clamping claws 122, and the plurality of elastic clamping claws 122 are simultaneously matched with the limiting grooves 132 on the inner wall of the sleeve 13. When the handle 11 abuts against the top of the sleeve 13, the plurality of elastic clamping claws 122 are matched with the limiting grooves 132 on the inner wall of the sleeve 13 which are the lowest and have the smallest diameters, the limiting grooves 132 extrude the plurality of elastic clamping claws 122 to make them contract and clamp the suture needle 2.

[0038] When the suture needle 2 needs to be replaced, the handle 11 is pulled upward, the handle 11 drives the elastic clamping claws 122 to move upward in the sleeve 13 through the connecting plate 121, the elastic clamping claws 122 are sequentially matched with the limiting grooves 132 with gradually increasing diameters, the elastic clamping claws 122 are gradually opened until they no longer clamp the suture needle 2, so that the suture needle 2 falls off from the elastic clamping claws 122. At this time, a new suture needle 2 is inserted into the elastic clamping claws 122, the handle 11 is pushed downward, the handle 11 drives the elastic clamping claws 122 to move downward in the sleeve 13, the elastic clamping claws 122 are sequentially matched with the limiting grooves 132 with gradually decreasing diameters, the limiting grooves 132 extrude the elastic clamping claws 122 to make them gradually contract until the suture needle 2 is clamped, so that the suture needle 2 is replaced.

[0039] The handle 11 includes a grip 111 for holding by hand, and a pull rod 112 connected with the grip 111 at one end and connected with the connecting plate 121 at the other end. The handle 11 includes the grip 111 and the pull rod 112, the pull rod 112 is connected with the grip 111 at one end and connected with the connecting plate 121 at the other end, so that the handle 11 is connected with the handle retraction opening 12, and when the handle 11 moves up and down, the handle 11 drives the handle retraction opening 12 to move up and down in the sleeve 13, and then the elastic clamping claws 122 are sequentially matched with the limiting grooves 132 with different diameters on the inner wall of the sleeve 13. The cross-sectional diameter of the grip 111 is set to be larger than that of the pull rod 112, on the one hand, to facilitate the hand to hold the grip 111 and pull the handle 11 to move up and down, and on the other hand, the pull rod 112 can extend from the top of the sleeve 13 to be connected with the connecting plate 121, and when the elastic clamping claws 122 are matched with the limiting grooves 132 on the inner wall of the sleeve 13 which are the lowest and have the smallest diameters, the grip 111 abuts against the top of the sleeve 13, so that it cannot move downward any more.

[0040] The handle 11 further comprises a spring 113 sleeved on the pull rod 112, one end of the spring 113 abutting against the sleeve 13, and the other end abutting against the connecting plate 121. The spring 113 is sleeved on the pull rod 112, one end of the spring 113 abutting against the sleeve 13, and the other end abutting against the connecting plate 121. When the handle 111 abuts against the top of the sleeve 13, and the plurality of elastic clamping claws 122 cooperate with the limit grooves 132 of the smallest diameter at the lowermost part of the inner wall of the sleeve 13, the spring 113 is in a natural elongation state. When the handle 111 is pulled to move upward, the connecting plate 121 is driven to move upward, and the connecting plate 121 compresses the spring 113. When the handle 111 is released, the connecting plate 121 is driven to move downward under the elastic force of the spring 113, until the spring 113 returns to the natural elongation state. In this way, when the new gap-finding needle 2 is inserted into the elastic clamping claw 122, the handle 111 is not required to be moved downward by applying force to the handle 111 to clamp the gap-finding needle 2, but the handle 111 is automatically moved downward by the elastic force of the spring 113, so that the use of the ceramic tile leveling device is more convenient.

[0041] The gap-finding needle 2 is provided with a clamping head 21 clamped with the handle contraction opening 12, and the plurality of elastic clamping claws 122 are each provided with a hook clamped with the clamping head 21. The plurality of elastic clamping claws 122 are each provided with a hook, and the gap-finding needle 2 is provided with a clamping head 21 at the top, when the plurality of elastic clamping claws 122 are tightened, the hooks on the elastic clamping claws 122 are clamped with the clamping head 21 at the top of the gap-finding needle 2, so that the clamping of the handle contraction opening 12 and the gap-finding needle 2 is more stable.

[0042] The gap-finding needle 2 further comprises a needle body 22 connected with the clamping head 21 at one end, and a needle head 23 connected with the needle body 22 at the other end, used to abut against the ground where the ceramic tiles are jointed. The cross-sectional area of the needle head 23 is greater than that of the needle body 22. The gap-finding needle 2 comprises the clamping head 21 at the top, the needle head 23 at the bottom, and the needle body 22 connecting the clamping head 21 and the needle head 23, and the cross-sectional areas of the needle head 23 and the clamping head 21 are both greater than that of the needle body 22. The cross-sectional area of the clamping head 21 is set to be greater than that of the needle body 22, in order to facilitate the elastic clamping claws 122 to clamp the gap-finding needle 2, and the cross-sectional area of the needle head 23 is set to be greater than that of the needle body 22, because the gap-finding needle 2 is in a T-shaped structure, and when the ceramic tile leveling device is leveling, the two ends of the gap-finding needle 2 need to hold the bottom of the two ceramic tiles respectively, the greater the cross-sectional area of the needle head 23, the greater the contact area with the two ceramic tiles, so that the leveling effect of the gap-finding needle 2 is better.

[0043] The connecting part of the needle body 22 and the needle head 23 is provided with a breaking groove 24. The breaking groove 24 is arranged on the needle body 22 to facilitate the breaking of the needle body 22 at the breaking groove 24, so that the breaking of the jointing needle 2 is more convenient and labor-saving when the jointing needle 2 is taken out of the jointing groove after the jointing is finished. The breaking groove 24 is arranged at the connecting part of the needle body 22 and the needle head 23 because the needle body 22 is inserted into the jointing groove, and if the breaking groove is arranged on the part of the needle body 22 which is not inserted into the jointing groove, the breaking of the needle body 22 will be difficult to realize under the abutting of the tiles, and if the breaking groove 24 is arranged on the part of the needle body 22 which is inserted into the jointing groove, the part of the needle body 22 which is not inserted into the jointing groove will be exposed out of the jointing groove after the needle body 22 is broken at the breaking groove 24, thus causing a safety hazard.

[0044] The inner wall of the sleeve 13 is provided with a plurality of steps, and a plurality of limiting grooves 132 are arranged on the steps. The steps are arranged along the circumference of the sleeve 13, and the limiting grooves 132 with gradually decreasing diameters from top to bottom are arranged on the steps. The sleeve 13 is arranged in this structure to reduce the weight and the processing material of the sleeve 13. The extrusion of the elastic clamping jaw 122 by the inner wall of the sleeve 13 is realized by the cooperation of the elastic clamping jaw 122 and the limiting groove 132, so that the diameter of the through hole of the sleeve 13 for surrounding the handle contraction opening 12 can be increased. Since the steps are arranged on the inner wall of the sleeve 13 in a spaced manner, the weight and the processing material of the sleeve 13 can be reduced.

[0045] The locking cover 14 comprises a threaded part 141, an abutting part 142 arranged at the bottom of the threaded part 141, and a plurality of reinforcing ribs 143 connecting the threaded part 141 and the abutting part 142, and a threaded hole 144 penetrating through the threaded part 141 and the abutting part 142. The diameter of the cross section of the abutting part 142 is larger than that of the threaded part 141. The locking cover 14 comprises the threaded part 141 and the abutting part 142, and the abutting part 142 is arranged at the bottom of the threaded part 141. When the tile jointer is used, the locking cover 14 is screwed with the sleeve 13 through the threaded part 141 to adjust the height of the locking cover 14 on the sleeve 13 until the abutting part 142 abuts against the surface of the tile to complete the jointing. The diameter of the cross section of the abutting part 142 is larger than that of the threaded part 141 to increase the contact area between the locking cover 14 and the surface of the tile, so that the jointing effect of the tile jointer is better. The plurality of reinforcing ribs 143 arranged between the threaded part 141 and the abutting part 142 are arranged to strengthen the structural stability of the tile jointer.

[0046] The above description can be implemented alone or in various combinations, and these variations are within the protection scope of the present application.

[0047] It is to be noted that, in the present text, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0048] Finally, it should be noted that the above-mentioned embodiments are merely used to illustrate the technical solutions of the present application, rather than limiting them. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalent ones, without departing from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A detachable tile leveller characterised in that: The leveling device comprises a leveling device body (1) and a jointing needle (2), the leveling device body (1) comprises a handle (11) and a handle contraction opening (12) connected with the handle (11), the jointing needle (2) is clamped in the handle contraction opening (12); when the handle (11) is pulled, the handle contraction opening (12) is opened, and the jointing needle (2) falls out of the handle contraction opening (12); when the handle (11) is released, the handle contraction opening (12) is tightened, and the jointing needle (2) is clamped in the handle contraction opening (12). The leveling device body (1) further comprises a sleeve (13) surrounding the periphery of the handle contraction opening (12) and a locking cover (14) arranged outside the sleeve (13), the sleeve (13) is provided with external threads (131), and the locking cover (14) is provided with threaded holes (144) screwed with the external threads (131). The inner wall of the sleeve (13) is provided with a plurality of limiting grooves (132) with diameters gradually decreasing from top to bottom, the handle contraction opening (12) comprises a connecting plate (121) connected with the handle (11) and a plurality of elastic clamping claws (122) arranged at the bottom of the connecting plate (121), and when the handle (11) drives the handle contraction opening (12) to move up and down in the sleeve (13), the plurality of elastic clamping claws (122) abut against the plurality of limiting grooves (132) in sequence. The handle (11) comprises a grip (111) for holding by hand and a pull rod (112) with one end connected with the grip (111) and the other end connected with the connecting plate (121). The handle (11) further comprises a spring (113) sleeved on the pull rod (112), one end of the spring (113) abuts against the sleeve (13), and the other end abuts against the connecting plate (121). The inner wall of the sleeve (13) is provided with a plurality of steps in the circumferential direction, and the plurality of steps are arranged in the vertical direction, and the plurality of limiting grooves (132) are arranged on the plurality of steps, respectively.

2. A demountable tile leveller as claimed in claim 1, characterised in that: The top of the jointing needle (2) is provided with a clamping head (21) clamped with the handle contraction opening (12), and the plurality of elastic clamping claws (122) are each provided with a hook clamped with the clamping head (21).

3. A demountable tile leveller as claimed in claim 2, characterised in that: The jointing needle (2) further comprises a needle body (22) with one end connected with the clamping head (21) and a needle head (23) connected with the other end of the needle body (22) and abutting against the ground with a tile joint, and the cross-sectional area of the needle head (23) is greater than that of the needle body (22).

4. A demountable tile leveller as claimed in claim 3, characterised in that: The connection between the needle body (22) and the needle head (23) is provided with a breaking groove (24).

5. A demountable tile leveller as claimed in claim 1, characterised in that: The locking cover (14) comprises a threaded portion (141), an abutting portion (142) arranged at the bottom of the threaded portion (141), and a plurality of reinforcing ribs (143) connecting the threaded portion (141) and the abutting portion (142), the threaded hole (144) penetrating through the threaded portion (141) and the abutting portion (142), and the cross-sectional diameter of the abutting portion (142) is greater than the cross-sectional diameter of the threaded portion (141).

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